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Sample records for maxillary sinus mucosa

  1. Avaliação da mucosa sinusal do coelho à presença de implante biodegradável Assessing the maxillary sinus mucosa of rabbits in the presence of biodegradable implants

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    André Coura Perez

    2012-12-01

    Full Text Available Pensando em melhorar a qualidade de vida dos pacientes com doenças do humor vítreo, os oftalmologistas começaram a utilizar recentemente implantes biodegradáveis com corticoide. Estes mesmos implantes podem ser uma alternativa no tratamento da RSC e, para isso, realizamos um estudo experimental em seios maxilares de coelhos. OBJETIVO: Avaliar histologicamente a mucosa de seio maxilar de coelhos após a colocação de implante biodegradável de prednisolona. MÉTODO: Dezoito coelhos foram divididos aleatoriamente em dois grupos: Grupo 1: no seio maxilar esquerdo foi inserido um implante biodegradável com prednisolona; Grupo 2: No seio maxilar esquerdo foi inserido um implante biodegradável sem medicação. Os seios maxilares do lado direito serviram como controle. Após 7, 14 e 28 dias foram escolhidos aleatoriamente três coelhos de cada grupo e a resposta tecidual inflamatória foi avaliada. RESULTADOS: Foi encontrada diferença não significativa de inflamação na mucosa, quando comparamos o grupo de coelhos que receberam implantes com e sem medicação com o grupo controle; ou quando comparamos o grupo que recebeu implante com prednisolona com o grupo que recebeu implante sem medicação. CONCLUSÃO: Não foram observados sinais de toxicidade ou inflamação na mucosa do seio maxilar do coelho à presença do implante com ou sem prednisolona.In an attempt to improve the quality of life of patients with vitreous humor disease, ophthalmologists began offering steroid-eluting biodegradable implants to their patients. These implants can be used as an alternative treatment for CRS and this is why this experimental study was carried out on rabbit maxillary sinuses. OBJECTIVE: This study aims to assess the histology of the mucosa of the maxillary sinuses of rabbits after the placement of a prednisolone-eluting biodegradable implant. METHOD: Eighteen rabbits were randomly divided into two groups: group 1 - subjects had drug-eluting implants placed on their left maxillary sinuses; group 2 - subjects had non-drug-eluting implants placed on their left maxillary sinuses. The right maxillary sinuses served as the controls. After seven, 14, and 28 days three rabbits in each group were randomly picked to have their tissue inflammatory response assessed. RESULTS: Levels of mucosal inflammation were not significantly different between the groups with and without drug-eluting implants and the control group, or when the groups with drug-eluting implants and non-drug-eluting implants were compared. CONCLUSION: Signs of toxicity or mucosal inflammation were not observed in the maxillary sinuses of rabbits given prednisolone-eluting implants or non-drug-eluting implants.

  2. Avaliação da mucosa sinusal do coelho à presença de implante biodegradável / Assessing the maxillary sinus mucosa of rabbits in the presence of biodegradable implants

    Scientific Electronic Library Online (English)

    André Coura, Perez; Armando da Silva, Cunha Junior; Sílvia Ligório, Fialho; Lívia Mara, Silva; João Vicente, Dorgam; Adriana de Andrade Batista, Murashima; Alfredo Ribeiro, Silva; Maria, Rossato; Wilma Terezinha, Anselmo-Lima.

    2012-12-01

    Full Text Available Pensando em melhorar a qualidade de vida dos pacientes com doenças do humor vítreo, os oftalmologistas começaram a utilizar recentemente implantes biodegradáveis com corticoide. Estes mesmos implantes podem ser uma alternativa no tratamento da RSC e, para isso, realizamos um estudo experimental em s [...] eios maxilares de coelhos. OBJETIVO: Avaliar histologicamente a mucosa de seio maxilar de coelhos após a colocação de implante biodegradável de prednisolona. MÉTODO: Dezoito coelhos foram divididos aleatoriamente em dois grupos: Grupo 1: no seio maxilar esquerdo foi inserido um implante biodegradável com prednisolona; Grupo 2: No seio maxilar esquerdo foi inserido um implante biodegradável sem medicação. Os seios maxilares do lado direito serviram como controle. Após 7, 14 e 28 dias foram escolhidos aleatoriamente três coelhos de cada grupo e a resposta tecidual inflamatória foi avaliada. RESULTADOS: Foi encontrada diferença não significativa de inflamação na mucosa, quando comparamos o grupo de coelhos que receberam implantes com e sem medicação com o grupo controle; ou quando comparamos o grupo que recebeu implante com prednisolona com o grupo que recebeu implante sem medicação. CONCLUSÃO: Não foram observados sinais de toxicidade ou inflamação na mucosa do seio maxilar do coelho à presença do implante com ou sem prednisolona. Abstract in english In an attempt to improve the quality of life of patients with vitreous humor disease, ophthalmologists began offering steroid-eluting biodegradable implants to their patients. These implants can be used as an alternative treatment for CRS and this is why this experimental study was carried out on ra [...] bbit maxillary sinuses. OBJECTIVE: This study aims to assess the histology of the mucosa of the maxillary sinuses of rabbits after the placement of a prednisolone-eluting biodegradable implant. METHOD: Eighteen rabbits were randomly divided into two groups: group 1 - subjects had drug-eluting implants placed on their left maxillary sinuses; group 2 - subjects had non-drug-eluting implants placed on their left maxillary sinuses. The right maxillary sinuses served as the controls. After seven, 14, and 28 days three rabbits in each group were randomly picked to have their tissue inflammatory response assessed. RESULTS: Levels of mucosal inflammation were not significantly different between the groups with and without drug-eluting implants and the control group, or when the groups with drug-eluting implants and non-drug-eluting implants were compared. CONCLUSION: Signs of toxicity or mucosal inflammation were not observed in the maxillary sinuses of rabbits given prednisolone-eluting implants or non-drug-eluting implants.

  3. Maxillary sinus haematoma

    OpenAIRE

    Lim, M; Lew-Gor, S; Beale, T.; Ramsay, A.; Lund, V J

    2008-01-01

    The maxillary sinus haematoma is an uncommon cause of a maxillary sinus mass. It presents with a variety of symptoms, the most common being epistaxis. Although histologically benign, it may be clinically progressive. Radiological findings can range from a benign appearance to a more aggressive process, including bony erosion. Surgical evacuation is the mainstay of therapy. We describe our experience in managing this condition and review available literature on the subject.

  4. Maxillary sinus nodular fasciitis

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    Abdulmalik S. Alsaied; Mohammed A. Lotfy

    2014-01-01

    Nodular fasciitis is a rare and benign inflammatory condition; however, it can be misdiagnosed as a malignant lesion. We report a unique case of nodular fasciitis arising from the maxillary sinus in a 2-year-old child. Our English literature review (PubMed search), revealed a total of 3 cases published as nodular fasciitis in the para-nasal sinuses, each with a different management approach. 

  5. Large pneumocele of the right maxillary sinus

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    Mena-Domínguez EA, Torres-Morientes LM, Tavárez-Rodríguez JJ, Bauer M, Martín-Pascual MC, Morais-Pérez D

    2013-10-01

    Full Text Available Introduction: The pneumocele is a pathological expansion of paranasal sinus containing only air, which can move the nearby structures. Radiologically is a hiperneumatizacion and elongation of paranasal sinus, that can be associated with bone loss. Description: Patient with facial fullness and pains on right side, occasionally nasal blockage that worsen with pressure changes, at exploration presents protrusion of maxillary mucosa into the nostril. Discussion: Pneumoceles can occur in any paranasal sinus. Usually remain asymptomatic and they are not diagnosed until it takes place an external deformity or displacement of neighbouring structures to the sinus, causing symptoms. Conclusion: The maxillary sinus neumoceles are a rare differential diagnosis of mucocele, tumors and trigeminal neuralgia. Surgery is curative, preferring an endoscopic approach.

  6. Maxillary Sinus mucormycosis mimicking sinus malignancy

    International Nuclear Information System (INIS)

    Mucormycosis is an opportunistic fulminant fungal infection in diabetic and immunocompromised patients. The infection is acquired in the nose and paranasal sinuses by the inhalation of the fungal spores. We report of a case of maxillary sinus mucormycosis in a 32-years-old non diabetic woman. She had right side facial pain, headache, unilateral right side nasal obstruction, and post nasal discharge (PND) for five years. Nasal endoscopy revealed pus and granulation tissue, and semi-black middle turbinate in right side nasal cavity. Computed tomography showed bone erosion and a large soft tissue mass similar to sinus carcinoma in maxillary sinus with extension into the ethmoidal sinus. She underwent functional Endoscopic sinus surgery. Macroscopically, the specimen consisted of multiple tissue fragment 0.8-1 cm. Microscopic findings included an inflammatory cells and deposited fungal elements (mucormycosis). So in the paranasal sinus and nasal cavity mass, mucormycosis should be included in the differential diagnosis, especially in the non diabetic and young patients. (author)

  7. Sex determination using maxillary sinus

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    Ranjith Kumar Kanthem

    2015-01-01

    Full Text Available Background: Individual identification is a subtle concept and often one of the most important priorities in mass disasters, road accidents, air crashes, fires, and even in the investigation of criminal cases. Matching specific features detected on the cadaver with data recorded during the life of an individual is an important aspect in forensics, and can be performed by fingerprint analysis, deoxyribonucleic acid matching, anthropological methods, radiological methods and other techniques which can facilitate age and sex identification. Sinus radiography is one such method that has been used for determination of the sex of an individual. Hence, an attempt is being made to use the different dimensions of the maxillary sinus in the determination of sex using coronal and axial sections of plain computed tomography (CT scan. Materials and Methods: A total of 30 patients including 17 male and 13 female, visiting the Outpatient Department of the Mamata General Hospital were included as the study subjects. The dimensions of right and left maxillary sinuses of 30 subjects from plain CT were measured using SYNGO software and statistical analysis was done. Results: Sex determination using height, length, width, and volume of the maxillary sinus on both sides showed statistically significant results with a higher percentage of sexual dimorphism in the case of volume. Conclusion: Volume of the right maxillary sinus can be used as accurate diagnostic parameter for sex determination.

  8. Fibrous dysplasia of maxillary sinus

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    Tinoco, Paulo; Pereira, José Carlos Oliveira; Lourenço Filho, Rodolfo Caldas; Silva, Fabrício Boechat do Carmo; Ruela, Karol Pereira

    2009-01-01

    Introduction: The Fibrous Dysplasia is a benign bone disease, of slow growth and unknown etiology. The involvement of the craniofacial skeleton is not uncommon and, generally, produces facial asymmetries. Case Report: In this article we report the case of a patient with fibrous dysplasia occupying the entire left maxillary sinus with orbitary extension confirmed in the anatomopathological exam. Final Comments: The surgical treatment remains as the main therapeutic approach and the postoperati...

  9. Fibrous dysplasia of maxillary sinus

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    Tinoco, Paulo

    2009-06-01

    Full Text Available Introduction: The Fibrous Dysplasia is a benign bone disease, of slow growth and unknown etiology. The involvement of the craniofacial skeleton is not uncommon and, generally, produces facial asymmetries. Case Report: In this article we report the case of a patient with fibrous dysplasia occupying the entire left maxillary sinus with orbitary extension confirmed in the anatomopathological exam. Final Comments: The surgical treatment remains as the main therapeutic approach and the postoperative follow-up is necessary due to this condition recurrent nature.

  10. Radiology in diagnostics of odontogenic maxillary sinusitis

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    Chekhonatskaya ?.L

    2013-09-01

    Full Text Available The purpose: to prove diagnostic capabilities of modern radiation techniques in odontogenic maxillary sinusitis. Material and methods: The study involved 546 patients with sinusitis. The following methods have been used: X-ray of the paranasal sinuses, contrast maxillary sinus radiography, contact intraoral radiographs, orthopantomography, computer tomography and magnetic resonance imaging. Results. In 7,9% of cases the presence of odontogenic sinusitis has been established, in 92,1 % rhinogenous sinusitis has been revealed. The work provides information about the effectiveness of various radiation techniques in the diagnosis of odontogenic sinusitis. Conclusion. For suspected odontogenic sinusitis, treatment of choice includes the combined use of X-ray of the paranasal sinuses in the mentoanterior projection and contact intraoral radiographs of «causal teeth». Computer tomography is the most informative additional method to clarify the diagnosis of odontogenic sinusitis.

  11. Orthopantomographic study of the maxillary sinus

    International Nuclear Information System (INIS)

    The author has observed the orthopantomograms of the maxillary sinus which were taken by special exposure method to study mesiodistal dimension, shape, symmetrical relationship, bony septum of the maxillary sinus and relationship between upper lst molar and the maxillary sinus, that were selected 56 cases of 23 to 27 years old male, who have good systemic conditions and no missing teeth on upper posterior molar in normal occlusion, and obtained following conclusions: 1. Mesiodistal dimensions of the maxillary sinus are shown as follows; The mean of left dimension is 50.94 ± 8.34 mm and of right dimension is 49.50 ± 9.87 mm. 2. To the shape of the maxillary sinus, V or U shape are 33 cases(29.5%) and W shape are 77 cases (70.5%). 3. In the ralationship between upper lst molar and floor of the maxllary sinus, superimposition are 62 cases (55.36%) a nd approach are 50 cases (44.64%). 4. In the right and left symmetrical relationship of the maxillary sinus, symmetry are 37 cases (66.07%) and asymmetry are 19 cases (33.93%). 5. The bony septums in the maxillary sinuses revealed that presence of bony septums are 29 cases (25.8%) and absence ar e 83 cases (74.11%).

  12. Development of maxillary sinuses in childhood

    International Nuclear Information System (INIS)

    The purpose of this study was to clarify the development of the maxillary sinuses in childhood. Between June 1983 and December 1985, a total of 120 children under 15 years old were enrolled in this study. Cranial X-ray CT scans were performed using a GE CT/T 8800 and slice thickness were 1.5 mm under 2 years old and 5.0 mm for age above 3 years. Forty-five patients who had facial anomalies, or growth retardation, or premature infants were excluded from further analysis. The remaining 75 patients were evaluated for the development of the maxillary sinuses. The scans were made in the coronal and saggital planes. Anterior-posterior diameter (length) and mid-lateral diameter (width), and volume of the maxillary sinuses were measured by using the image processing system that was developed by us. Cranio-caudal diameter (height) was calculated by multiplying the slice thickness by the total number of the slices taken from the area of the maxillary sinus. Three dimensional structures of the maxillary sinuses were also displayed using the same system. The sizes of maxillary sinuses in the new born were 7.3 ± 1.9 mm(mean ± S.D.) in length, 6.7 ± 1.6 mmin height, and 5.2 ± 1.3 mm in width. These results were similar to those reported by others. The sizes of the maxillary sinuses were increased rapidly by the age 3 - 4 years. The numerical values for theses three measurements were greater than those previously reported, especially for height. The levels of upper borders of these maxillary sinuses in infants and young children were higher than those of inferior rimbs of the orbits. The results for the three dimensional displays and volume measurements performed on 66 children above 1 year old are also presented. (author)

  13. Septal deviation is associated with maxillary sinus fungus ball in male patients.

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    Oshima, Hidetoshi; Nomura, Kazuhiro; Sugawara, Mitsuru; Arakawa, Kazuya; Oshima, Takeshi; Katori, Yukio

    2014-01-01

    Fungus is one of the causes of chronic rhinosinusitis. If the fungus occupies the sinus but does not invade the sinonasal mucosa, this is called sinus fungus ball. Any association between anatomical variations and fungus ball remains unclear. Sinus fungus ball is defined as non-invasive chronic fungal rhinosinusitis occurring in immunocompetent patients, and the maxillary sinus is the most commonly affected. The etiology of maxillary sinus fungus ball remains unclear. This study assessed the potential contribution of anatomical variations, such as deviated nasal septum, concha bullosa, and Haller cell to the development of fungus ball in the maxillary sinus. Concha bullosa and Haller cell are structural variations that narrow the nasal airflow passage and contribute to chronic rhinosinusitis. The involvement of these variations has been investigated in chronic sinusitis but not in sinus fungus ball. Preoperative computed tomography findings of 103 patients with maxillary sinus fungus ball were evaluated retrospectively. Septal deviation and Haller cell were not correlated with the side of maxillary sinus fungus ball. Concha bullosa was more common on the unaffected side (p = 0.099). When we analyzed males and females separately, maxillary sinus fungus ball was more common on the concave side of the deviated septum in only male patients (p = 0.006). The high incidence of maxillary fungus ball in the concave side may reflect the consequences of the traumatic effects caused by wall shear stress of the high-velocity airflow and the increased chance of inhaling fungus spores. PMID:24646922

  14. Treatment outcome of maxillary sinus cancer

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    Jin-Hyoung Kang

    2009-12-01

    Full Text Available The standard treatment in the early stage of maxillary sinus cancer is surgical resection followed by postoperative radiation therapy. However, for locally advanced maxillary sinus cancer, a multimodality treatment approach is strongly recommended to improve the survival rate and quality of life of the patient. We determined the treatment outcomes of induction chemotherapy, concurrent chemoradiation therapy, and surgical resection for locally advanced maxillary sinus cancer. Forty-four patients with locally advanced maxillary sinus cancer, who had been treated between January 1990 and April 2008 at Kangnam St. Mary's Hospital, were retrospectively analyzed. The objective response rates were 70%, 53%, and 57% in the intra-arterial induction chemotherapy, intravenous induction chemotherapy, and concurrent chemoradiation therapy groups, respectively. The orbital preservation rates were 83%, 100%, and 75% in the intra-arterial induction chemotherapy, intravenous induction chemotherapy, and surgical resection groups, respectively. In seven of nine patients in whom the orbit could be preserved after induction chemotherapy, the primary tumors were removed completely. However, although the orbits were preserved in three patients who underwent surgical resection as a primary treatment, all three cases were confirmed to be incomplete resections. We found that active induction chemotherapy for locally advanced cancer of the maxillary sinus increased the possibility of complete resection with orbital preservation as well as tumor down-staging.

  15. [Nasal cavity supernumerary tooth and maxillary sinusitis: one case reported].

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    Guo, Guangliang; Hu, Limin; Lu, Yuan

    2015-08-01

    Supernumerary tooth is a rare case. This report described a case of nasal cavity supernumerary tooth association with maxillary sinusitis. A 28-year-old male patient reported with the chief complaint of nasal obstruction, headache and purulent secretion for the past three months. Clinic examination and CT examination showed that there was a supernumerary tooth in the right nasal bottom, and maxillary sinus was infected in the same side. This patient was performed supernumerary tooth removing and given antibiotics for 3 days. Ten days after the operation, there was no clinical symptoms, and nasal bottom mucosa was normal. After 3 months of follow-up, reexamination of coronal CT scan appeared normal. PMID:26665468

  16. Radiologic study of the maxillary sinusitis

    International Nuclear Information System (INIS)

    Radiographic features of maxillary sinusitis, type of mucosal thickening, types of bony wall change, and relationship between the radiographic features and symptoms of patients were observed and classified in the Waters' view of 360 patients with 441 maxillary sinuses demonstrating radiologic change was observed in the 154 periapical films. Finally, the value of orthopantomography in the diagnosis of maxillary sinusitis was evaluated in the 138 cases, The obtained results were as followings. 1. Among 441 maxillary sinuses examine by Waters' projection, mucosal thickening was seen in 56.7% and generalized opacification was seen in 36.3%. 2. Among 270 mucosal thickenings classified 8 types, overall regularly thickened type cortical plates was the highest in incidence (36.3%). 3. Bony wall change was seen in 35.6% of all cases and the indistinct while line of the cortical plates was the highest in incidence (78.2%) among the 6 types. 4. Pain (419%) and pus discharge (21.0%) were the most frequent symptoms. And pus discharge, foul odor, and headache was more prevalent in type of generalized opacification than any other types. 5. Regular pneumatization involving all roots of premolars and molars was the highest in incidence (55.0%). The first molar presented the most frequent involvement (61.0%). 6. In orthopantomography, 46.4% showed apparent increased radiopacity and 23.9% showed suspicious increased radiopacity in comparison to Water's projection.

  17. Antibiotics for acute maxillary sinusitis

    DEFF Research Database (Denmark)

    Ahovuo-Saloranta, Anneli; Borisenko, Oleg V; Kovanen, Niina; Varonen, Helena; Rautakorpi, Ulla-Maija; Williams, John W; Mäkelä, Marjukka

    2008-01-01

    BACKGROUND: Expert opinions vary on the appropriate role of antibiotics for sinusitis, one of the most commonly diagnosed conditions among adults in ambulatory care. OBJECTIVES: We examined whether antibiotics are effective in treating acute sinusitis, and if so, which antibiotic classes are the most effective. SEARCH STRATEGY: We searched the Cochrane Central Register of Controlled Trials (CENTRAL) (The Cochrane Library, 2007, Issue 3); MEDLINE (1950 to May 2007) and EMBASE (1974 to June 2007)....

  18. SMALL CELL UNDIFFERENTIATED (NEUROENDOCRINE TUMOR – MAXILLARY SINUS .

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    Bharath

    2013-01-01

    Full Text Available ABSTRACT: BACKGROUND: Small cell undifferentiated (neuroendocrine carci nomas in head and neck region is extremely uncommon neoplasm. Thes e belong to the group of other blue cell tumors. CASE REPORT: An 11 year’s girl presented with swelling in right cheek since 3 months, watering of right eyesince2 months & bleeding since 1 month. Examination revealed soft to firm mass in inferior meatus and was bleeding on touch . CT scan showed heterogeneous density in maxillary antrum. Biopsy was done. Histopathologicall y, diagnosis of Small cell carcinoma- undifferentiated (neuroendocrine type of maxillary sinus was made. CONCLUSION: These neoplasms of the nasal and paranasal sinuses are loca lly aggressive and have propensity for multiple local recurrences, and thus, early diagnosi s and local control may be important for improved prognosis.

  19. Maxillary sinus manifestations of methamphetamine abuse

    OpenAIRE

    Faucett, Erynne A.; Marsh, Katherine M.; Farshad, Kayven; Erman, Audrey B.; Chiu, Alexander G.

    2015-01-01

    Methamphetamines are the second most commonly used illicit drug worldwide and cost the United States health-care system ?$23.4 billion annually. Use of this drug affects multiple organ systems and causes a variety of clinical manifestations. Although there are commonly known sequelae of methamphetamine abuse such as “meth mouth,” there is limited evidence regarding maxillary sinus manifestations. The following cases highlight the initial evaluation and management of two methamphetamine abuser...

  20. Surgical removal of dental implants displaced into the maxillary sinus

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    Chrcanovic Ramos Bruno; Custódio Neto Luís Antônio

    2009-01-01

    The accidental displacement of roots, endodontic materials and dental implants into the maxillary sinus are relatively common complications in dental clinical practice. The purpose of this study is to present four cases of displaced dental implant into maxillary sinus, their treatment as well as the prevention of this condition. There are three different major approaches to remove materials displaced into the maxillary sinus: suction from the socket of an extracted tooth, the classical open s...

  1. Maxillary sinus pneumatization after maxillary molar extraction assessed with cone beam computed tomography

    International Nuclear Information System (INIS)

    The purpose of this study was to examine the inferior expansion of the maxillary sinus floor following maxillary molar extraction. Cone beam computed tomographic images of 59 subjects were used to evaluate the height difference of the maxillary sinus floor between extraction sites and contralateral dentate sites. The height of the maxillary sinus floor was defined as the vertical distance to the Frankfort plane from the level of the anterior nasal spine to the most inferior point of the sinus floor. We examined the difference in sinus pneumatization according to the number of missing teeth and the vertical relationship of the molar roots to the sinus floor. The inferior expansion of the maxillary sinus floor was 1.20 ± 1.86 mm on the maxillary first molar and 1.90 ± 2.42 mm on the maxillary second molar. Increased expansion was observed in cases where two proximate molars were extracted. There was no significant difference in sinus pneumatization following extraction according to the vertical relationship of the molar roots to the sinus floor. The results of this study confirm that sinus pneumatization occurs following maxillary molar extraction. In situations where pneumatization can affect treatment after molar extraction, three-dimensional radiography should be considered.

  2. Aspergilloma of the maxillary sinus: report of a case

    International Nuclear Information System (INIS)

    Aspergilloma of the paranasal sinus is a non-invasive form of aspergillosis, most often in the maxillary sinus. This case presents an 86-year-old female with aspergilloma of the left maxillary sinus. The patient's chief complaint was intermittent pain on the left maxillary first premolar area. A radiopacification of the left maxillary sinus was observed on the panoramic radiograph. Cone-beam computed tomography revealed complete radiopacification of the left maxillary sinus and scattered multiple radiopaque mass inside the lesion. Biopsy was performed under local anesthesia. On microscopic examination, numerous fungal hyphae, which branch at acute angle, were observed. The diagnosis was made as an aspergilloma based on the histopathologic examination.

  3. [Melanoma of nasal cavity and paranasal sinus mucosa].

    Science.gov (United States)

    Go?abek, W; Siwiec, H; Klatka, J; Morshed, K

    2001-01-01

    In a group of 15 patients with malignant melanoma of the nasal cavity and paranasal sinuses the place of origin was nasal mucosa in 11 patients, the ethmoid cells in 2 cases and the maxillary sinus in 2 cases. Only 5 patients had tumour limited to infrastructure of the nasomaxillary complex, in 10 patients tumour occupied also suprastructure. Total maxillectomy was performed in 4 patients, partial maxillectomy in 8 patients with orbital exenteration in 3 patients. Of 12 patients operated on three patients died one year, two patients two years and one patient 6 years after surgery. One patient is alive 12 years, three patients are alive three years and one patient is alive one year after surgery. PMID:11766322

  4. Positional relationship between the maxillary sinus floor and the apex of the maxillary first molar using cone beam computed tomograph

    International Nuclear Information System (INIS)

    To assess the positional relationship between the maxillary sinus floor and the apex of the maxillary first molar using cone beam computed tomograph (CBCT). CBCTs from 127 subjects were analysed. A total of 134 maxillary first molars were classified according to their vertical and horizontal positional relationship to the maxillary sinus floor and measured according to the distance between the maxillary sinus floor and the maxillary first molar. Type III (The root projected laterally on the sinus cavity but its apex is outside the sinus boundaries) was dominated between 10 and 19 years and type I (The root apex was not in contact with the cortical borders of the sinus) was dominated (P<0.05) between 20 and 72 years on the vertical relationship between the maxillary sinus floor and the apex of the maxillary first molar. The maxillary sinus floor was located more at the apex (78.2%) than at the furcation (21.3%) for the palatal root. The distance from the root apex to the maxillary sinus floor confined to type I was increased according to the ages (P<0.05). Type M (The maxillary sinus floor was located between the buccal and the palatal root) was most common (72.4%) on the horizontal relationship between the maxillary sinus floor and the apex of the maxillary first molar. CBCT can provide highly qualified images for the maxillary sinus floor and the root apex of the maxillary first molar.

  5. Measurement of maxillary sinus volume using Computed Tomography

    International Nuclear Information System (INIS)

    To propose a standard value for the maxillary sinus volume of a normal Korean adult by measuring the width and height of the sinus and analyzing their correlation and the difference of the sinus size respectively between sexes, and on the right and left sides. Fifty-two (95 maxillary sinuses) out of 20 years or over aged patients who had taken CT in the Department of Dental Radiology, Yonsei University, Dental Hospital, between February 1997 and July 1999 who were no specific symptom, prominent bony septa, pathosis, clinical asymmetry and history of surgery in the maxillary sinus were retrospectively analyzed. The mean transverse width, antero-posterior width, height and volume of the normal Korean adult's maxillary sinuses were 28.33 mm, 39.69 mm, 46.60 mm and 21.90 cm3, respectively. There was a significant sex difference in the sinus volume (p<0.05). In the mean antero-posterior width, height and volume of the sinus, no significant difference was observed between both sides. All four measurements showed a significant correlation between both sides (p<0.0001). The widths and height of the sinus all showed a significant correlation with the sinus volume (p<0.0001). In the Korean normal adult's maxillary sinus, males tended to be larger than females. Except for the transverse width, all of the measurements showed no significant difference between the right and left side, but significant correlations in the four measurements between both sides were observed. Thus, the overgrowth or undergrowth in the unilateral maxillary sinus may suggest a certain pathosis or developmental abnormalities in the maxillary sinus.

  6. A PARALLEL STUDY OF RHINOGENIC AND ODONTOGENIC MAXILLARY SINUS DISEASE.

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    Elitsa Deliverska

    2012-02-01

    Full Text Available Because of its close anatomic relations with nosal and oral cavitis, the maxillary sinus is the place of most frequent inflammatory diseases of all paranasal sinuses. Introduction: The aim of this study was to establish differences in etiology and treatment of rhinogenic and odontogenic maxillary sinusitis. Materials and methods: In this study, we analyzed the etiology, clinical characteristics of the disease, x-ray findings, clinical course and treatment of 188 cases, which were diagnosed and treated as odontogenic or rhinogenic maxillary sinusitis in the Departments of Maxillofacial surgery and Otorhinolaringology – “St. Anna” Hospital, Sofia from 2005 to 2010. Patients were divided according to age and sex. Data was systematized and analyzed. Results: This study clearly showed that rhinogenic diseases of maxillary sinus are three times more frequent than odontogenic diseases. Also the etiology of odontogenic sinusitis most often is due to mistakes in the treatment of the upper teeth (alien corpuses, perforation after extraction, which is completely different from rhinogenic sinusitis. In the surgical treatment of rhinogenic maxillary sinusitis usually endonasal polypectomy was followed by operation according to Caldwell-Luc or functional sinus endoscopy. During the surgical treatment of odontogenic sinusitis the most frequent intervention was surgical plastic of oral-antral communication with mucogingival vestibular flap followed by operation according to Caldwell-Luck what is different from the treatment of rhinogenic sinusitis.Conclusion: Maxillary sinus often suffers from inflammatory diseases and should always be examined carefully by means of anamnesis, clinic exam and x-rays to identify its origin. Upper teeth should be treated carefully in everyday’s dental practice to avoid being cause of sinusitis.

  7. Removal of an Upper Third Molar from the Maxillary Sinus

    OpenAIRE

    Amorim, Klinger de Souza; da Silva, Vanessa Tavares; da Cunha, Rafael Soares; Souto, Maria Luisa Silveira; São Mateus, Carla Rocha; Souza, Liane Maciel de Almeida

    2015-01-01

    The maxillary sinus or antrum is the largest of the paranasal sinuses. It is located in the maxillary bone and has a proximity to the apexes of upper molars and premolars, which allows it to form a direct link between the sinus and the oral cavity. Dislocation of a foreign body or tooth to the interior of a paranasal sinus is a situation that can occur as a result of car accidents, firearm attacks, or iatrogenic in surgical procedures. Therefore, it is necessary to know how to treat this kind...

  8. Unusual cause of maxillary sinus mass with proptosis.

    Science.gov (United States)

    Kurien, Regi; Babu, Telugu Ramesh; Rupa, Vedantam

    2015-01-01

    We report a case of a 21-year-old Indian man with an 8-month history of left-sided headache, maxillary sinus mass, proptosis and swelling of the left temple, whose contrast-enhanced CT scans of the paranasal sinuses showed an enhancing, destructive soft tissue mass involving the left maxillary sinus, orbit, infratemporal fossa and anterior cranial fossa, suggestive of a malignancy or chronic granulomatous disease. Histopathological examination of the sinus mass, which was debulked and partially excised via an endoscopic approach, suggested a diagnosis of immunoglobulin G4-related sclerosing disease of the maxillary sinus. Subsequent immunohistochemical staining and biochemical tests confirmed the diagnosis. We highlight the importance of considering this increasingly recognised but rare entity that can mimic a malignant lesion with its clinical and radiological features but which, unlike the latter, has a very good prognosis with appropriate treatment. PMID:26392443

  9. Sinusitis Maxilar de Origen Odontogénica: Diagnóstico y Tratamiento Quirúrgico / Maxillary Sinusitis of Odontogenic Origin: Surgical Diagnosis and Treatment

    Scientific Electronic Library Online (English)

    Ferdinando, De Conto; Mayara, De Bona; Graciele, Rui; Gisele, Rovani; Roque, Rhoden; Mateus, Ericson Flores.

    2013-12-01

    Full Text Available La sinusitis odontogénica afecta la mucosa de los senos maxilares y puede ser causada por la evolución de una lesión en el diente con formación de pus periapical que avanza en el interior de la cavidad sinusal. Se presenta un caso de un paciente con dens in dente en el diente incisivo lateral superi [...] or derecho, que sufrió el proceso de caries evolucionando en la región periapical, contaminando la mucosa sinusal de este lado, lo que causó el dolor, abultamiento y el desplazamiento del diente. La cirugía se realizó a través de acceso de Caldwell-Luc para el curetaje de la lesión, lo que indica la presencia en el diagnóstico histopatológico la presencia de quiste abscedado y sinusitis. Después de 18 meses de control, se observó la regeneración ósea y el reposicionamiento alveolar espontáneo de los dientes implicados. Los autores advierten que cíngulos profundos y dens in dente son las enfermedades de los dientes que merecen atención para el diagnóstico y la prevención de los procesos de caries con el fin de evitar complicaciones mayores. Abstract in english Odontogenic sinusitis affects mucous membrane of the maxillary sinus and can be caused by the evolution of a tooth injury with formation of periapical abscess that advances into the sinus cavity. We present a patient with dens in dente in the upper right lateral incisor tooth, which suffered carious [...] process and periapical abscess, contaminating the sinus mucosa on this side, which caused pain, bulging and tooth displacement. Surgery was performed via a Caldwell-Luc access for curettage of the lesion, indicating the presence in the histopathological diagnosis of radicular cyst abscess and sinusitis. After 18 months of control, alveolar bone regeneration and spontaneous repositioning of teeth involved was observed. The authors warn that cingulum deep in dens in dente are diseases of the tooth that deserve attention for the diagnosis and prevention of carious processes in order to avoid further complications.

  10. Maxillary sinus carcinoma: Natural history and outcome

    International Nuclear Information System (INIS)

    To assess natural history, treatment outcome and pattern of relapse in patients with maxillary sinus carcinoma. A review was conducted of the medical records of all adult patients with maxillary sinus carcinoma, who were treated at King Faisal Hospital and Research Centre, Riyadh, Kingdom of Saudi Arabia, between January 1990 and December 1999. A total of 60 patients were identified for analysis, 36 men and 24 women; the median age was 58-years (range 23-95). Major presenting symptoms were facial swelling 55%, facial pain 50%, and nasal obstruction 43.4%, with a median duration of 5-months (range 1-24). Histology was quamous cell carcinoma in 71.7% and adenoid cystic in 16.7%. They were restaged according to American Joint Committee on Cancer classification 1997 as II, III and IV in 1, 10 and 49. Thirty patients received treatment with curative intent (surgery in 4 patients, radiotherapy in 2, and combined modality in 24), 6 patients refused treatment and 24 were treated palliatively. With a median follow up of 50-months (range 2-128) in surviving patients treated with a curative intent, 12/30 failed locally, 4/30 in the regional neck nodes and 2/30 had systemic relapse. The actuarial 5-year overall survival (OS), relapse free survival (RFS) and local control rate (LC) were 55%, 39% and 51%. Treatment modality was the only significant prognostic factor for outcome, with 5 year OS, RFS and LC of 72%, 49% and 61%, for combined modality using surgery followed by radiotherapy compared to 0% for single approach (p=0.0003, p=0.0052 and p=0.0098). This study indicates that the majority of our patients presented with advanced disease, resulting in poor outcome to conventional treatment modalities. Efforts should be directed to minimize the delay in diagnosis at the primary care level. Combined modality treatment should be offered to all patients with locally advanced disease. New approaches such as neoadjuvant or concurrent chemoradiotherapy with or without surgery need to be considered and evaluated in prospective studies. (author)

  11. The value of panoramic radiography in assessing maxillary sinus inflammation

    International Nuclear Information System (INIS)

    To evaluate the value of panoramic radiography in diagnosing maxillary sinus inflammation. A total of 214 maxillary sinuses from 114 panoramic radiographs were assessed in this study. Two independent experienced oral radiologists evaluated the images in random order for sinus inflammation. Using Cone beam CT images as the gold standard, the sensitivity and specificity of panoramic radiography were calculated, and inter- and intraobserver agreement for panoramic interpretation were obtained. The mean sensitivity and specificity of panoramic radiography were 81.0% and 85.6%, respectively. The weighted kappas for inter- and intraobserver agreement of panoramic radiography were 0.56 and 0.60, respectively. Panoramic radiography is a reasonably accurate method for diagnosing maxillary sinus inflammation and can be used for screening. However, additional examinations should be considered in patients with potentially significant pathology.

  12. Evaluation the success of osseointegrated implants in maxillary sinus grafts

    Directory of Open Access Journals (Sweden)

    Rubens Eduardo Gigli

    2008-01-01

    Full Text Available Objective: To analyze implants placed in maxillary sinus grafts with biomaterial of bovine origin and platelet-rich plasma, observing bone neoformation and the clinical and histologic success rate presented.Methods: Analysis of the clinical findings was based on 36 maxillary sinus grafts with 101 implants placed in 30 patients with a mean age of 47 years, and the histologic analysis, based on nine samples of the 36 grafts performed, with a mean interval of 7.5 months time of the graft, the majority of patients being men with a mean age of 42 years. Results: Clinically, 91 implants placed were osseointegrated.Conclusion: Based on the results presented, it was concluded that when implants are placed in the maxillary sinus region grafted with biomaterial, they present a high success rate. ISRCTN24003246

  13. Recurrent solid ameloblastoma of the maxillary sinus: A case report

    OpenAIRE

    Martins de Paiva Tadeu Leonardo; Gama de Paiva Rosa Patrícia; Guimarães Henriques João César; Dantas Batista Jonas; Bardi Matai Viníícius Caio; Rangel Rosa Rafaela

    2012-01-01

    Introduction. Ameloblastomas are clinically the most important type of odontogenic tumors. Solid or multicystic form most commonly affects mandible, it is highly aggressive and shows high rates of recurrence. The aim was to report aggressive behavior of a rare maxillary solid ameloblastoma, emphasizing the clinical, tomographic and histological aspects. Case Report. A young and asymptomatic patient, presenting a solid ameloblastoma initially located in the maxillary sinus with rapid spr...

  14. Endodontic material diffusion in the pathogenesis of maxillary sinus aspergillosis

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    Stéfano Florenzano

    2013-01-01

    Full Text Available One undesirable sequela of root canal treatment is the overextension of endodontic material into the maxillary sinus, which may represent a risk factor for maxillary sinus aspergillosis (MSA. Diverse clinical presentations of aspergillosis have been reported and they vary depending on the immune status of the host. The noninvasive form called Aspergillus mycetoma occurs mostly in healthy people. This report describes a case of MSA associated with root canal over fi lling in a 27-year-old healthy man. The patient had been asymptomatic for 6 years after root canal treatment. Radiography revealed a diffuse radiopaque mass inside the left maxillary sinus, with radiolucent areas near the cortical bone of the maxillary sinus. Computed tomography (CT showed the presence of material with a density similar to that of soft tissue. Imaging fi ndings suggested that the calci fi cation fi lled the left maxillary antrum, without expansion or bone destruction. The lesion was removed, and microscopic examination of the specimen revealed an in fl ammatory process with numerous dichotomized fungal structures (compatible with Aspergillus sp.. Histopathological features were compatible with aspergillosis. Treatment consisted of surgery and adjunctive anti-fungal therapy with itraconazole. Clinical and radiographic follow-up revealed no recurrence of the lesion.

  15. Maxillary sinus septa: comparison between panoramic radiography and CBCT

    International Nuclear Information System (INIS)

    To investigate and compare the prevalence, size, and location of maxillary sinus septa on panoramic and cone beam computed tomography (CBCT) images.Two hundred patients who had taken both panoramic and CBCT images were included. The location of maxillary sinus septa on the panoramic radiographs were recorded and confirmed on the CBCT images. Also the size of septa was measured on the reformatted CBCT images. The prevalence of the patients who had maxillary sinus septa was 51.0% and they showed 179 septa totally. Among them 51.0% of the patients had one septum, 32.4% two septa, 13.7% three, and 2.9% four. The measured heights of the septa were 4.37 ± 2.87 mm, 3.51 ± 2.47 mm, and 3.04 ± 2.37 mm in the medial, middle, and lateral areas, respectively. It was revealed that 1.0% was located at canine region, 18.0% at first premolar, 25.0% at second premolar, 22.7% at first molar, 19.8% at second molar, and 14.0% at third molar region. Among 213 septa depicted by the panoramic radiographs, only 69.0% were confirmed at the CBCT images. Since various heights and courses of the septa can develop in all parts of the maxillary sinus, adequate assessment of the inner aspect of the maxillary sinus is essential to avoid complications during sinus augmentation procedures. CBCT scanning is the preferred radiographic method for detecting the presence of sinus septa.

  16. Endoscopic Extraction of the Impacted Wisdom Tooth from Maxillary Sinus

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    Larin R.A.

    2013-03-01

    Full Text Available We described a case of laterally situated impacted wisdom tooth extraction in maxillary sinus using an endoscopic endonasal approach. The technique was shown to be an adequate alternative to a traumatic transmaxillary approach earlier applied in such cases.

  17. Growth patterns of the maxillary sinus based on computed tomography

    International Nuclear Information System (INIS)

    The distance between two points in the bone and the angle of the bone wall were measured based on computed tomography imaging using Image Web Ver. 1.3 from Philips Electronics Japan, Ltd in order to investigate the growth patterns of the maxillary sinus. The results are as follows: Bone destruction and formation are simultaneously noted to occur in a forward direction in the normal anterior maxillary wall, with no thickening of the bone wall. The normal posterior maxillary wall grows in a forward longitudinal direction. The angle between the normal posterior and medial walls of the maxillary bone is 43 degrees, with no angle change is seen due to aging. The width of the alveolar process remains quite constant regardless of age, and the maxillary bone grows anteriorly, laterally, and inferiorly, terminating its growth at around 20 years of age. The balance between bone destruction and formation in the anterior maxillary wall can be disrupted due to inflammation, thus leading to bone thickening. Inflammation can also inhibit the longitudinal growth of the posterior maxillary wall, thus resulting in bone thickening. The balance between bone destruction and the formation in the posterior maxillary wall can be disrupted due to inflammation, thus leading to lateral thickening of the bone, and thereby resulting in an increase in the angular difference between the posterior and medial walls. (author)

  18. Recurrent solid ameloblastoma of the maxillary sinus: A case report

    Directory of Open Access Journals (Sweden)

    Martins de Paiva Tadeu Leonardo

    2012-01-01

    Full Text Available Introduction. Ameloblastomas are clinically the most important type of odontogenic tumors. Solid or multicystic form most commonly affects mandible, it is highly aggressive and shows high rates of recurrence. The aim was to report aggressive behavior of a rare maxillary solid ameloblastoma, emphasizing the clinical, tomographic and histological aspects. Case Report. A young and asymptomatic patient, presenting a solid ameloblastoma initially located in the maxillary sinus with rapid spreading to the adjacent tissues, had early recurrence despite radical surgical approach. Conclusion. Multicystic or solid ameloblastoma has lower incidence in maxilla and extremely aggressive behavior, justifying careful follow-up of the patients.

  19. Case Report: retained gutta-percha as a cause for persistent maxillary sinusitis and pain

    OpenAIRE

    HODNETT, BENJAMIN L.; Berrylin Ferguson

    2014-01-01

    Dental sources of infection can produce acute and chronic maxillary sinusitis. In some cases, the source of the infection may be related to the presence of endodontic materials in the oral cavity. In this article, we report a case of retained gutta-percha in the maxillary sinus resulting in chronic sinusitis.

  20. A Computed Tomographic Study on the Size and Bone Wall Thickness of the Maxillary Sinus in Normal, Preoperative and Postoperative Maxillary Sinusitis Patients

    International Nuclear Information System (INIS)

    To compare the size and bone wall thickness of the maxillary sinus in normal, preoperative and postoperative maxillary sinusitis patients. The author analyzed CT images of both left and right maxillary sinuses in 357 patients who visited Chonbuk National University Hospital between January 1997 and December 1998. The size and bone wall thickness of the maxillary sinus of normal, inflammatory and post-Caldwell-Luc groups were compared. The significant differences of transverse, maximum medio-lateral, maximum supero-inferior dimensions and medio-lateral dimension at nasal floor level between normal and post-Caldwell-Luc groups were found (P0.05). The significant differences of postero-lateral, infero-lateral and medial wall thickness between normal and post-Caldwell-Luc groups were found (P<0.05). The results of this study will aid in the diagnosis and treatment of maxillary sinus diseases and post operative treatment planning.

  1. A combined study of CT and MRI in chronic maxillary sinusitis

    International Nuclear Information System (INIS)

    With CT of the paranasal sinusitis mucosal swelling can not be distinguished from fluid accumulation within the sinuses in patients with chronic sinusitis. We studied 12 cases of chronic sinusitis (17 sides) by means of CT and MRI, with which we could distinguish mucosal swelling from fluid accumulation in the maxillary sinuses. It was found that in a majority of cases with total clouding of the maxillary sinus the degree of swelling of mucous membrane was relatively small. This indicates that the main cause of total clouding of the maxillary sinus found in CT is due to accumulation of fluid rather than from obliteration of the sinus due to swelling of mucous membrane within the maxillary sinus. (author)

  2. Dental volumetric tomographical evaluation of location and prevalence of maxillary sinus septa

    Directory of Open Access Journals (Sweden)

    Ibrahim Damlar

    2013-06-01

    Full Text Available Purpose: The aim of this study was to determine the prevalence and location of maxillary sinus septa with the help of dental volumetric tomography. Methods: 760 patients? 1520 maxillary sinus were evaluated by dental volumetric tomography for detecting maxillary sinus septa. Maxillary sinus was divided into 3 zones (anterior, middle and posterior zones while location of the maxillary sinus septa. Results: 47 of maxillary sinus septa existed in the anterior zone (24.7%, 35 of them in the middle zone (18.4% and 108 of them in the posterior region (56.8%. Conclusion: The formation of the maxillary sinus septa was affected by the existence or lack of the teeth. Correct detection of the presence of maxillary sinus septa was important prior to sinus lifting and dental implant surgery. Dental volumetric tomographical evaluation of maxillary sinus septa was more useful for a correct diagnosis and treatment planning. [Cukurova Med J 2013; 38(3.000: 467-474

  3. The role of the maxillary sinus on the voice.

    Science.gov (United States)

    Koo, Soo Kweon; Kwon, Soon Bok; Chon, Kyong Myong; Kim, Yang Jae; Kim, Young Joong

    2015-09-01

    The objective of the study was to determine the effect of the maxillary sinus on the voice. The prospective study was conducted at an academic secondary referral center. A prospective chart review of 43 patients (17 males, 26 females) who conducted a voice recording and survey before and 3 months after middle meatal antrostomy whose lesion was confined to the maxillary sinus. Subjective voice changes were surveyed using a questionnaire. After phonation [?m ma: the Korean pronunciation of 'mother'], [Nu Na: the Korean pronunciation of 'sister'], we analyzed the nasal consonant [m] of [?m ma] and nasalized vowel [a] of [?m ma] and [a] of [Nu Na]. In the poll conducted, the change rates for males and females were 41.1 % (7/17) and 15.4 % (4/26), respectively; of the male patients, 85.7 % (6/7) felt that the sound quality was better and 14.3 % (1/6) that it was worse. However, all the female patients felt it was better. Among of the patients with an improved voice, reduced nasal sound was the most frequent observation. In an objective analysis, a tendency to lowered frequencies was observed for nasalized vowels after surgery. Significant differences were observed at second formant frequencies of [a] of [?m ma] and first formant frequencies of [a] of [Nu Na] in female subjects (P < 0.005). Our findings indicated that the maxillary sinus plays a role in the modification of voice quality. Preoperative counseling is important for patients concerning expected changes in the voice after maxillary sinus surgery. PMID:25348340

  4. Maxillary sinusitis caused by Lasiodiplodia theobromae

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    Kindo A

    2010-01-01

    Full Text Available Lasiodiplodia (monotypic comprises a very small proportion of the fungal biota. It is a common plant pathogen in tropical and subtropical regions. Clinical reports on its association with onychomycosis, corneal ulcer and phaeohyphomycosis are available. However, Lasiodiplodia theobromae causing fungal sinusitis has not been reported. We present here a case of fungal sinusitis in a 30-year-old woman, who came to the ENT OPD (out patient department with complaints of intermittent bleeding and nasal discharge from the left side for a week. The patient complained of headache, predominantly on the left side and heaviness on and off since two months. Diagnosis was based on radiological and mycological evidence; the patient underwent endoscopic surgery and was started on antifungal treatment.

  5. Progressive immediate loading of a perforated maxillary sinus dental implant: a case report

    OpenAIRE

    Al-Juboori, Mohammed Jasim

    2015-01-01

    The displacement of a dental implant into the maxillary sinus may lead to implant failure due to exposure of the apical third or the tip of the implant beyond the bone, resulting in soft tissue growth. This case report discusses dental implant placement in the upper first molar area with maxillary sinus involvement of approximately 2 mm. A new technique for progressive implant loading was used, involving immediately loaded implants with maxillary sinus perforation and low primary stability. F...

  6. Sinus maxillaris mycetoma of odontogenic origin: case report

    Scientific Electronic Library Online (English)

    Matjaz, Rode; Jernej, Podboj; Mirela, Kogoj-Rode.

    2004-12-01

    Full Text Available O número de infecções fúngicas tem aumentado. Infecções fúngicas com a espécie Aspergillus, presentes nas cavidades dos maxilares, podem estar relacionadas com os ápices dos dentes do arco superior. Mudanças diagnósticas nos seios maxilares e certos tipos de dores faciais podem ser indicativos de in [...] fecção fúngica. Os autores relatam um caso de sinusite por aspergilose (aspergillosis sinusitis) e descrevem os métodos de diagnóstico e tratamento desta infecção, que pode estar relacionada com o tratamento endodôntico. Abstract in english Fungal infections are on the increase and those of the jaw cavities with Aspergillus species may be connected with the root apices of teeth in the upper jaw. Diagnostic changes in the sinus maxillaris and certain types of facial pain may be indicative of fungal infection. The authors report a case o [...] f aspergillosis sinusitis and describe the diagnostic methods and treatment of this infection that may be associated with endodontic treatment.

  7. A Peduncular Cystic Compound Odontoma on the Posterior Wall of the Maxillary Sinus

    International Nuclear Information System (INIS)

    A cystic compound odontoma in the maxillary sinus occurred in a 13-years-old boy, who had missing right upper third molar without having the history of extraction of the wisdom tooth. He complained nasal stuffiness, headache, and pain on the affected face, resembling any sign and symptoms of the maxillary sinus problems. The cysteic compound, sized 2 x 1.5 cm in diameter was pedunculated and attached on the posterior wall of the right maxillary sinus and above the antral floor. The location of the compound odontoma in the maxillary sinus was confirmed after panoramic, waters, spiral tomographic, CT examinations and surgical exploration. Irs location was on the medical, posterior, superior to the normal position of the maxillary third molar or the maxillary dental arch. The cystic odontoma in the maxillary sinus made the patient have the sings and symptoms of maxillary sinusitis. The cystic compound odontoma might be originated from the dental lamina of the missing upper right third molar. The 'V principle' of the upper jaw growth and the pneumatization process of the maxillary sinus could explain why the compound odontoma had peduncular shape and the location of odontoma was on the medial, superior to the normal position of the maxillary dental arch.

  8. Dentigerous cyst associated with a displaced tooth in the maxillary sinus: an unusual cause of recurrent sinusitis in an adolescent

    International Nuclear Information System (INIS)

    We report an unusual case of a displaced maxillary molar and associated dentigerous cyst within the maxillary sinus in an adolescent presenting as recurrent sinusitis. Although a rare cause of sinusitis in children, dentigerous cysts should be included in the differential diagnosis for causes of persistent or recurrent sinusitis in this age group. This report provides further evidence for obtaining imaging studies when managing pediatric sinusitis that does not respond to standard antibiotic therapy. We discuss management options for these lesions including the differential diagnoses and need for follow-up. (orig.)

  9. Evaluation of the postoperative maxillary sinus with computed tomography

    International Nuclear Information System (INIS)

    To evaluate the computed tomographic appearances of postoperative maxillary sinuses. 33 asymptomatic cases of post-operative maxillary sinus without evidence of any pathologic changes and clinical symptoms were selected. CT images were classified as opacification, soft tissue shadow, anterior wall depression, nasoantral communication, and compartmentalization. The relationships between the CT image and the age of patients at the time of operation, and between the CT image and the duration of time elapsed since the surgical procedure were evaluated. The most commonly presented radiological characteristics that occurred after the Caldwell-Luc procedure were opacification and soft tissue shadow. Anterior wall depression and nasoantral communication were radiographic indications that a Caldwell-Luc operation had been carried out. The age of patients when they had been first operated on, and the duration between the surgical procedure and the time of evaluation had no effect on the CT appearances of normal changes. In cases involving a longer time interval between the antral surgery and evaluation, the anterior wall depression with bony healing was more commonly observed than soft tissue healing. The radiographic information regarding the normal healing state using computed tomography can distinguish post-operative changes from inflammatory and cystic disease in patients who have undergone a Caldwell-Luc type of radical maxillary astronomy.

  10. Computed tomography measurements of different dimensions of maxillary and frontal sinuses

    International Nuclear Information System (INIS)

    We have previously proposed the use of Doppler ultrasound to non-invasively stage sinus infection, as we showed that acoustic streaming could be generated in nonpurulent sinus secretions and helped to distinguish it from mucopurulent sinus secretions. In order to continue this development of a clinically applicable Doppler equipment, we need to determine different dimensions of the paranasal sinuses, especially the thickness of the anterior wall of the maxillary sinus (at the canine fossa). To the best of our knowledge, this is the first report on the thickness of the canine fossa. This study aimed to (a) estimate different dimensions of the maxillary and frontal sinuses measured on computed tomography (CT) of the head, (b) define cut-off values for the normal upper and lower limits of the different measured structures, (c) determine differences in age, side and gender, (d) compare manually and automatically estimated maxillary sinuses volumes, and (e) present incidental findings in the paranasal sinuses among the study patients. Dimensions of 120 maxillary and frontal sinuses from head CTs were measured independently by two radiologists. The mean value of the maxillary sinus volume was 15.7 ± 5.3 cm3 and significantly larger in males than in females (P = 0.004). There was no statistically significant correlation between the volume of maxillary sinuses with age or side. The mean value of the bone thickness at the canine fossa was 1.1 ± 0.4 mm. The automatically estimated volume of the maxillary sinuses was 14-17% higher than the calculated volume. There was high interobserver agreement with regard to the different measurements performed in this study. Different types of incidental findings of the paranasal sinuses were found in 35% of the patients. We presented different dimensions of the maxillary and frontal sinuses on CTs. We believe that our data are necessary for further development of a clinically applicable Doppler equipment for staging rhinosinusitis

  11. Computed tomography measurements of different dimensions of maxillary and frontal sinuses

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    Abul-Kasim Kasim

    2011-04-01

    Full Text Available Abstract Background We have previously proposed the use of Doppler ultrasound to non-invasively stage sinus infection, as we showed that acoustic streaming could be generated in nonpurulent sinus secretions and helped to distinguish it from mucopurulent sinus secretions. In order to continue this development of a clinically applicable Doppler equipment, we need to determine different dimensions of the paranasal sinuses, especially the thickness of the anterior wall of the maxillary sinus (at the canine fossa. To the best of our knowledge, this is the first report on the thickness of the canine fossa. This study aimed to (a estimate different dimensions of the maxillary and frontal sinuses measured on computed tomography (CT of the head, (b define cut-off values for the normal upper and lower limits of the different measured structures, (c determine differences in age, side and gender, (d compare manually and automatically estimated maxillary sinuses volumes, and (e present incidental findings in the paranasal sinuses among the study patients. Methods Dimensions of 120 maxillary and frontal sinuses from head CTs were measured independently by two radiologists. Results The mean value of the maxillary sinus volume was 15.7 ± 5.3 cm3 and significantly larger in males than in females (P = 0.004. There was no statistically significant correlation between the volume of maxillary sinuses with age or side. The mean value of the bone thickness at the canine fossa was 1.1 ± 0.4 mm. The automatically estimated volume of the maxillary sinuses was 14-17% higher than the calculated volume. There was high interobserver agreement with regard to the different measurements performed in this study. Different types of incidental findings of the paranasal sinuses were found in 35% of the patients. Conclusion We presented different dimensions of the maxillary and frontal sinuses on CTs. We believe that our data are necessary for further development of a clinically applicable Doppler equipment for staging rhinosinusitis.

  12. Retinated 28th Tooth in a Maxillary Sinus — a Rare Observation in a Practice of Otorhinolaryngologist

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    Larin R.A.

    2010-03-01

    Full Text Available An observation of a retinated 28th tooth and follicular cyst discovered in a maxillary sinus in patient with a chronic maxillary sinusitis is presented. The peculiarities of surgical intervention with a use of endoscopic technique are demonstrated.

  13. Maxillary sinus marrow hyperplasia in sickle cell anemia

    International Nuclear Information System (INIS)

    Marrow hyperplasia is a sequela of sickle cell anemia (SCA) and may be seen in the skull in children after 5 years of age. The facial bones, except for the mandible and orbits, are usually not involved. We report an unusual case of a 28-month-old black boy with SCA who presented with extensive marrow hyperplasia of the maxillary sinuses in addition to severe calvarial and mandibular changes. The imaging characteristics on CT (similar to other sites of marrow hyperplasia) and MR (low signal on both T1 and T2 sequences) should aid in making the correct diagnosis. (orig.)

  14. CT findings of malignant tumors of maxillary sinus

    Energy Technology Data Exchange (ETDEWEB)

    Park, Hyun Ae; Byun, Hong Sik; Kim, Kie Hwan; Chin, Soo Yil [Korea Cancer Center Hospital, Seoul (Korea, Republic of)

    1987-12-15

    CT findings of histologically proven malignant tumors of maxillary sinus in 36 patients were retrospectively analyzed. A variety of malignant tumors were included; 27 cases of squamous cell carcinoma, 3 malignant lymphomas, 2 malignant melanomas, 2 rhabdomyosarcomas, and chondrosarcoma, adenoid cystic carcinoma, and malignant ameloblastoma. CT staging was T4 in 19 cases, T3 in 16 cases and T2 in 1 case. The most common involved area beyond maxillary antrum was nasal cavity (25 cases), followed by ethmoid sinus (20 cases), orbit (19 cases), infratemporal fossa (17 cases), check skin (13 cases), pterygopalatine fossa (10 cases), and nasopharynx (6 cases). Skeletal destruction was seen in medial wall of antrum (31 cases), posterior wall of antrum (25 cases), anterior wall of antrum (23 cases), roof of antrum (19 cases), lamina papyracea (6 cases), and lateral wall of orbit (5 cases) in that order of frequency. Lymph node metastases were found in 2 cases of malignant melanoma, 2 cases of malignant lymphoma, and chondrosarcoma, squamous cell carcinoma, and malignant ameloblastoma. Predilection site of lymph node involvement was submandibular (3 cases), internal jugular (2 cases), parotid (2 cases), and retropharyngeal node (1 case)

  15. CT findings of malignant tumors of maxillary sinus

    International Nuclear Information System (INIS)

    CT findings of histologically proven malignant tumors of maxillary sinus in 36 patients were retrospectively analyzed. A variety of malignant tumors were included; 27 cases of squamous cell carcinoma, 3 malignant lymphomas, 2 malignant melanomas, 2 rhabdomyosarcomas, and chondrosarcoma, adenoid cystic carcinoma, and malignant ameloblastoma. CT staging was T4 in 19 cases, T3 in 16 cases and T2 in 1 case. The most common involved area beyond maxillary antrum was nasal cavity (25 cases), followed by ethmoid sinus (20 cases), orbit (19 cases), infratemporal fossa (17 cases), check skin (13 cases), pterygopalatine fossa (10 cases), and nasopharynx (6 cases). Skeletal destruction was seen in medial wall of antrum (31 cases), posterior wall of antrum (25 cases), anterior wall of antrum (23 cases), roof of antrum (19 cases), lamina papyracea (6 cases), and lateral wall of orbit (5 cases) in that order of frequency. Lymph node metastases were found in 2 cases of malignant melanoma, 2 cases of malignant lymphoma, and chondrosarcoma, squamous cell carcinoma, and malignant ameloblastoma. Predilection site of lymph node involvement was submandibular (3 cases), internal jugular (2 cases), parotid (2 cases), and retropharyngeal node (1 case)

  16. Detection and Identification of Fungi from Fungus Balls of the Maxillary Sinus by Molecular Techniques

    OpenAIRE

    Willinger, Birgit; Obradovic, Alexandra; Selitsch, Brigitte; Beck-Mannagetta, Johann; Buzina, Walter; Braun, Hannes; Apfalter, Petra; Hirschl, Alexander M; Makristathis, Athanasios; Rotter, Manfred

    2003-01-01

    The aim of this study was to find a reliable method for the detection and identification of fungi in fungus balls of the maxillary sinus and to evaluate the spectrum of fungi in these samples. One hundred twelve samples were obtained from patients with histologically proven fungal infections; 81 samples were paraffin-embedded tissue sections of the maxillary sinus. In 31 cases, sinus contents without paraffin embedding were sent for investigation. PCR amplification with universal fungal prime...

  17. A radiographic study of experimentally produced bone defects in the posterior wall of the maxillary sinus

    International Nuclear Information System (INIS)

    The purpose of this study was to evaluate the ability of radiographs in detecting experimental bony defect in the posterior wall of the maxillary sinus. For this study, experimentally five skulls were used, the bony defects with a diameter of 5 mm were created at different locations in the posterior wall of the right maxillary sinus and the bony defects of 10 mm were created at different locations in the posterior wall on left maxillary sinus. Panoramic view, panoramic sinus view, water's view, and computed tomogram were taken and the results analyzed. The obtained results were as follows : 1. The panoramic view was superior to the panoramic sinus view in detecting the bony defects in the posterior wall of the maxillary sinus. 2. Panoramic view, panoramic sinus view, and waters' view were limitation to the detection of the bony defects in the posterior wall of the maxillary sinus. 3. All the bony defects in the posterior wall of the maxillary sinus were excellently visualized on the computed tomogram.

  18. Displacement of a dental implant into the maxillary sinus after internal sinus floor elevation: report of a case and review of literature

    OpenAIRE

    Ding, Xiaojun; wang, qing; Guo, Xuehua; Yu, Youcheng

    2015-01-01

    Background: Dental implant placement in the posterior maxilla may be complicated by implant migration into the maxillary sinus. Purpose: To report the clinical and radiological characteristics of a patient who experienced dental implant displacement into the maxillary sinus following sinus floor elevation, and to compare our findings with those of other published reports of the displacement of dental implants. Materials and methods: Implant placement and maxillary sinus elevation were perform...

  19. A study on morphology of maxillary sinus by using the orthopantomograms

    International Nuclear Information System (INIS)

    This study was performed in order to analyse the morphology of maxillary sinus on orthopantomogram. The author analysed the anterior-posterior width of mesial wall, the extension of anterior margin in maxillary sinus and the interrelation between the root apex of maxillary 1st molar and sinus floor. The films consisted of 514 orthopantomograms divided into three groups ranging the 3rd decade, 4th and 5th decade and 6th decade. The obtained results were as follows: 1. The mean dimensions of the anterior-posterior width of mesial wall were 43.81 ± 4.55 mm for male and 43.80 ± 4.49 mm for female in the right of maxillary sinus, 43.75 ± 4.74 mm for male and 43.37 ± 3.92 mm for female. 2. With age, the dimensional change of the anterior-posterior width of mesial wall in maxillary sinus was not observed. 3. The extension order of anterior margin of the maxillary sinus was distal to canine side, 1st premolar mesial side, canine mesial side, and 1st premolar distal side. 4. In the distance between the root apex of upper 1st molar and the maxillary sinus floor, the degree of closeness was more increased in the older-aged group than in the younger-aged group.

  20. [Clinical and functional aspects of endonasal operation of the maxillary sinuses].

    Science.gov (United States)

    Hosemann, W; Wigand, M E; Nikol, J

    1989-06-01

    A total of 118 detailed questionnaires sent out to patients 3-5 years after endoscopic endonasal maxillary sinus surgery were evaluated. Forty-four patients (37.3%) were re-examined endoscopically. The procedure involves no complications, and 87% of the patients judged the endoscopic treatment of chronic maxillary sinusitis to have been successful. Supraturbinal antral windows remained patent, and a higher percentage were functionally intact compared with infraturbinal ones. The mucociliary pathways of the maxillary sinus via the antral window were restored postoperatively. PMID:2745166

  1. CT findings of change of the maxillary sinus after caldwell-luc operation

    International Nuclear Information System (INIS)

    This study describes the CT findings of changes in the maxillary sinus after the Caldwell-Luc procedure. The maxillary sinus-related findings in 35 cases among 20 patients (17 cases in 10 males and 18 cases in 10 females) who had undergone the Caldwell-Luc procedure mean 14.6 years earlier were reviewed. CT scans were obtained in the axial and coronal planes, with 5mm thickness. By means of the T test, changes in the size of the bony wall of the maxillary sinus, as well as antral volume change, were compared with normal maxillary sinus group (41 male and 23 female cases). Males and females were compared separately, and surgical bony defect of naso-labial antrotomy and nasoantral window, fibro-osseous proliferation, compartmentation and mucosal thickening of the postoperative maxillary sinus were evaluated, as were findings of chronic or recurrent maxillary sinusitis and postoperative complications. Naso-labial antrotomy was clearly identified in 27 of 35 cases, and irregular bony surface in the remaining eight, as were 27 bony defects and one irregular bony margin among a total of 28 cases of nasoantral window. Due to shortening of the height of the orbit, reductions in maxillary width, nasoantral communication width and anteroposterior diameter of the maxilla, and widening of the width of the inferior meatus, the maxillary sinus tended to become hypoplastic and centripetally contracted. Reduced cavitary volume of the maxillary sinus was noted (p less than 0.05), and fibro-osseous proliferation (n=3D29), compartmentation (n=3D11), and mucosal thickening (n=3D22) of the postoperative maxillary sinus were also seen. There were findings of chronic sinusitis (n=3D22), as well as complications of postoperative mucocele (n=3D3) and oroantral fistula (n=3D2) of the maxillary sinus. The characteristic maxillary sinus-related findings seen after the Caldwell-Luc procedure are helpful in distinguishing postoperative change from recurrent paranasal diseases and resulting complications. (author)

  2. CT findings of change of the maxillary sinus after caldwell-luc operation

    Energy Technology Data Exchange (ETDEWEB)

    Im, Ju Hyeon; Kim, Sun Su; Kim, Jong An; Moon, Un Hyeon; Kim, Se Jong; Park, Byung Ran; Kim, Byung Geun [Department of Radiology, Kwangju Christian Hospital, Kwangju (Korea, Republic of); Kang, In Young [Department of Radiology, Kwangju Green Cross Hospital, Kwangju (Korea, Republic of); Ko, Kang Seok [College of Medicine, Chosun University, Kwangju (Korea, Republic of)

    2000-03-01

    This study describes the CT findings of changes in the maxillary sinus after the Caldwell-Luc procedure. The maxillary sinus-related findings in 35 cases among 20 patients (17 cases in 10 males and 18 cases in 10 females) who had undergone the Caldwell-Luc procedure mean 14.6 years earlier were reviewed. CT scans were obtained in the axial and coronal planes, with 5mm thickness. By means of the T test, changes in the size of the bony wall of the maxillary sinus, as well as antral volume change, were compared with normal maxillary sinus group (41 male and 23 female cases). Males and females were compared separately, and surgical bony defect of naso-labial antrotomy and nasoantral window, fibro-osseous proliferation, compartmentation and mucosal thickening of the postoperative maxillary sinus were evaluated, as were findings of chronic or recurrent maxillary sinusitis and postoperative complications. Naso-labial antrotomy was clearly identified in 27 of 35 cases, and irregular bony surface in the remaining eight, as were 27 bony defects and one irregular bony margin among a total of 28 cases of nasoantral window. Due to shortening of the height of the orbit, reductions in maxillary width, nasoantral communication width and anteroposterior diameter of the maxilla, and widening of the width of the inferior meatus, the maxillary sinus tended to become hypoplastic and centripetally contracted. Reduced cavitary volume of the maxillary sinus was noted (p less than 0.05), and fibro-osseous proliferation (n=3D29), compartmentation (n=3D11), and mucosal thickening (n=3D22) of the postoperative maxillary sinus were also seen. There were findings of chronic sinusitis (n=3D22), as well as complications of postoperative mucocele (n=3D3) and oroantral fistula (n=3D2) of the maxillary sinus. The characteristic maxillary sinus-related findings seen after the Caldwell-Luc procedure are helpful in distinguishing postoperative change from recurrent paranasal diseases and resulting complications. (author)

  3. Experimental study on penetration of dental implants into the maxillary sinus in different depths

    Scientific Electronic Library Online (English)

    Weijian, ZHONG; Binke, CHEN; Xin, LIANG; Guowu, MA.

    2013-12-01

    Full Text Available The exposing of dental implant into the maxillary sinus combined with membrane perforation might increase risks of implant failure and sinus complications. Objective: The purpose of this study was to investigate the effects of the dental implant penetration into the maxillary sinus cavity in diffe [...] rent depths on osseointegration and sinus health in a dog model. Material and Methods: Sixteen titanium implants were placed in the bilateral maxillary molar areas of eight adult mongrel dogs, which were randomly divided into four groups according to the different penetrating extents of implants into the sinus cavities (group A: 0 mm; group B: 1 mm; group C: 2 mm; group D: 3 mm). The block biopsies were harvested five months after surgery and evaluated by radiographic observation and histological analysis. Results: No signs of inflammatory reactions were observed in any maxillary sinus of the eight dogs. The tips of the implants with penetrating depth of 1 mm and 2 mm were found to be fully covered with newly formed membrane and partially with new bone. The tips of the implants with penetrating depth over 3 mm were exposed in the sinus cavity and showed no membrane or bone coverage. No significant differences were found among groups regarding implant stability, bone-to-implant contact (BIC) and bone area in the implant threads (BA). Conclusions: Despite the protrusion extents, penetration of dental implant into the maxillary sinus with membrane perforation does not compromise the sinus health and the implant osseointegration in canine.

  4. Treatment of dental implant-related maxillary sinusitis with functional endoscopic sinus surgery in combination with an intra-oral approach

    OpenAIRE

    Nam, Ki-Young; Kim, Jong-Bae

    2014-01-01

    The present report describes the case of a patient who underwent maxillary sinusitis right after dental implant installation with sinus lifting. Computed tomography scan revealed a dental implant (#16) was protruded inside the right maxillary sinus and confirmed the obstruction of ostium. A symptom remission was gained with the dual approaches combined by functional endoscopic sinus surgery and an intra-oral approach. Fully recovered function and healing of sinus were identified after 10 mont...

  5. Multiple Calcifying Odontogenic Cysts Involving the Maxillary Sinus

    Directory of Open Access Journals (Sweden)

    Zargaran

    2015-06-01

    Full Text Available Introduction Calcifying odontogenic cyst (COC is an uncommon odontogenic lesion, classified in two variants: the cystic variant and neoplastic (solid variant. Case Presentation This case report presents multiple COC, which involved the maxillary bone and sinus in a 30-year-old man. Several of these lesions were cystic, while the others were neoplastic in type, and the lesions were removed surgically. Discussion Based on a literature review available on this topic in English, our case study was found to be the first one with multiple COC, showing both the cystic and neoplastic histopathological variant. Considering the high rate of recurrence of neoplastic COC, the patients should benefit from a long follow-up after treatment.

  6. Sensitivity and specificity of ultrasonography in diagnosis of maxillary sinusitis as compared to antral lavage

    International Nuclear Information System (INIS)

    Objective: To compare the sensitivity and specificity of ultrasonography in the diagnosis of maxillary sinusitis as compared to antral lavage. Study Design: Validation study Place and duration: Otolaryngology Department Combined Military Hospital Rawalpindi from first March 07 to 28 February 2008. Patients and Methods: Consenting 60 patients diagnosed clinically as a case of sinusitis, presenting in ENT OPD during the study period fitting the inclusion criteria were selected. Ultrasonography of maxillary sinuses focusing on fluid level was done of all the patients. After ultrasonography all the patients had an antral lavage with isotonic saline to look for mucopurulent discharge. Sensitivity and specificity of ultrasonography was evaluated in diagnosis of maxillary sinusitis. Results: The sensitivity of ultrasonography in diagnosis of maxillary sinusitis taking antral lavage as Gold Standard was very low 35.89 %. The specificity of ultrasonography in diagnosis of maxillary sinusitis taking antral lavage as Gold Standard is good i.e. 80.95%. Conclusion: Ultrasonography has low sensitivity but high specificity in diagnosis of maxillary sinusitis. (author)

  7. A study of geometrical theory for maxillary sinus projection in children

    International Nuclear Information System (INIS)

    This study is to evaluate the individual angulation on maxillary sinus projection and establishing angulation in children by new geometrical method. There were two groups, which are 60 cases in children (ranged from 1yr to 3yrs, 3yrs to 8yrs, 8yrs to 12yrs) and 50 cases in adults. We analyzed the true lateral maxillary sinus film of total 110 patients using new geometrical method. We demonstrated an angle of maxillary sinus projection. Arithmetical it is not valid during development of facial bone in childhood. The individual range of angulation according to age was that 1yr to 3yrs is 50-47 degrees, 3yrs to 8yrs is 47-40 degrees, 8yrs to 12yrs is 40-38 degrees. This geometrical method will be useful in establishing angulation for maxillary sinus projection

  8. Radiographic study on maxillary sinus development and nasal septum deviation in cleft palate patient

    International Nuclear Information System (INIS)

    This study was designed to investigate the effects of the maxillary sinus development and nasal septum deviation on diseases of maxillary sinus with cleft palate. The materials was 152 cephalometric Waters' projections consist of 76 cleft patients and 76 normal subjects. The results were as follows: 1. The disease of maxillary sinus was present in 49% of a cleft group and 14% of a control group, and prevalent in cleft side. 2. It showed no statistically significant difference in size of the maxillary sinus in cleft palate patients compared to the control population and in the cleft side to the noncleft side (p<0.05). 3. Nasal septum deviation was more severe in the cleft patient its average value was 3.55mm, compared to the control group, 0.99 mm (p<0.01) and 77% of the deviated nasal septum was deviated to the cleft side.

  9. A study of geometrical theory for maxillary sinus projection in children

    Energy Technology Data Exchange (ETDEWEB)

    Jeon, Heung Kyu; Kwon, Young Ho; Lee, Byung Je [Tongdaemoon Hospital, Ewha Womans Univ., Seoul (Korea, Republic of)

    1997-02-01

    This study is to evaluate the individual angulation on maxillary sinus projection and establishing angulation in children by new geometrical method. There were two groups, which are 60 cases in children (ranged from 1yr to 3yrs, 3yrs to 8yrs, 8yrs to 12yrs) and 50 cases in adults. We analyzed the true lateral maxillary sinus film of total 110 patients using new geometrical method. We demonstrated an angle of maxillary sinus projection. Arithmetical it is not valid during development of facial bone in childhood. The individual range of angulation according to age was that 1yr to 3yrs is 50-47 degrees, 3yrs to 8yrs is 47-40 degrees, 8yrs to 12yrs is 40-38 degrees. This geometrical method will be useful in establishing angulation for maxillary sinus projection.

  10. Brown tumor mimicking maxillary sinus mucocele as the first manifestation of primary hyperparathyroidism

    DEFF Research Database (Denmark)

    Guldfred, Liviu-Adelin; Daugaard, Søren; von Buchwald, Christian

    2012-01-01

    We describe the first case of brown tumor mimicking a maxillary sinus mucocele as the first manifestation of the patient's primary hyperparathyroidism. A 34-year old woman presented with a 14 days history of elevation of the right orbit, retrobulbar pain and cheek anesthesia. The CT and MR evaluation showed a mass, initially described as mucocele of the right maxillary sinus. The laboratory studies revealed hyperparathyroidism. The patient underwent acute surgery, and the mass appeared clinicall...

  11. Correlation of fractal dimension with histomorphometry in maxillary sinus lifting using autogenous bone graft

    DEFF Research Database (Denmark)

    Molon, Rafael Scaf de; Paula, Wagner Nunes de; Spin-Neto, Rubens; Verzola, Mario Henrique Arruda; Tosoni, Guilherme Monteiro; Lia, Raphael Carlos Comelli; Scaf, Gulnara; Jr, Elcio Marcantonio

    2015-01-01

    The aim of this study was to determine the pattern of bone remodeling after maxillary sinus lifting in humans by means of fractal dimension (FD) and histomorphometric analysis. Therefore, the correlation between FD and the histomorphometric findings was evaluated. Sixteen patients with posterior edentulous maxilla were enrolled in this study. Maxillary sinus lifting was performed using autogenous bone grafted from the mandibular retromolar area. Three direct digital panoramic radiographs were ob...

  12. The coronal CT of the paranasal sinuses in the postoperative maxillary cyst

    International Nuclear Information System (INIS)

    We classified patients with paranasal sinus disease into 3 categories, those with or without a history of previous Caldwell-Luc procedure according to clinical diagnosis. Class A: post-operative maxillary cysts in 22 patients. Class B: paranasal sinusitis in 21 patients who had undergone Caldwell-Luc surgery. Class C: paranasal sinusitis in 62 patients who had not undergone paranasal sinus surgery. This study evaluated the ethmoid, frontal and sphenoid sinuses in these 3 classes of patients on coronal CT scan. High density areas in the ethmoid sinuses were observed in 25.0% of class A, 80.0% of class B, and 82.1% of class C; in the frontal sinuses in 19.0% of class A, 73.7% of class B, and 73.3% of class C; in the sphenoid sinuses in 18.2% of class A, 57.1% of class B, and 51.6% of class C. As a result, the prevalence of high density areas in the ethmoid, frontal and sphenoid sinuses in patients (class A) with postoperative maxillary cysts was significantly lower than those in patients (classes B and C) with paranasal sinusitis. The authors speculated that postoperative maxillary cysts arise in cases that had few or lightly inflammatory changes of the ethmoid, frontal and sphenoid sinuses. (author)

  13. Evaluation of the posterior superior alveolar artery and the maxillary sinus with CBCT

    Scientific Electronic Library Online (English)

    Dilhan, Ilguy; Mehmet, Ilguy; Semanur, Dolekoglu; Erdogan, Fisekcioglu.

    2013-09-01

    Full Text Available Assessment of the maxillary sinus anatomy before sinus augmentation is important for avoiding surgical complications, because of the close anatomical relationship between the posterior maxillary teeth and the maxillary sinus. The posterior superior alveolar artery (PSAA) is the branch of the maxilla [...] ry artery that supplies the lateral sinus wall and overlying membrane. We evaluated the location of the PSAA and its relationship to the alveolar ridge and maxillary sinus using cone beam computed tomography (CBCT). The study group consisted of 135 CBCT scans (270 sinuses) obtained from the archive of the dentomaxillofacial radiology department at Yeditepe University Faculty of Dentistry, Istanbul, Turkey. The distance between the lower border of the artery and the alveolar crest, bone height from the sinus floor to the ridge crest, distance from the artery to the medial sinus wall, and the diameter and location of the artery were determined. The occurrence of septa and pathology were recorded from CBCT scans. The PSAA was observed in 89.3% of sinuses, and 71.1% of arteries were intraosseous with diameters mostly

  14. The ability of panoramic radiography in assessing maxillary sinus inflammatory diseases

    International Nuclear Information System (INIS)

    To evaluate the relative diagnostic accuracy of panoramic radiography and Water's projection in maxillary sinus inflammatory diseases by comparing the radiodensities of the images with those of CT. Panoramic radiographs, Waters' projection, and CT images from 55 subjects (110 sinuses) were included in this retrospective study. The radiodensity of each maxillary sinus in panoramic radiography was recorded separately as upper and lower divided horizontally by hard palate. In Waters' projection, the overall sinus radiodensity was recorded. The CT images were considered as gold standard. In panoramic radiography, 83 sinuses had same upper and lower radiodensity and 72 of these were consistent with those of CT, 26 sinuses had different upper and lower radiodensity and 15 of these, upper radiodensity was consistent with CT, the remaining 11, lower radiodensity was consistent with CT. One sinus had upper radiolucency with lower radiopacity and both were consistent with those of CT. Altogether 73 (66.4%) among 110 sinuses in panoramic radiography showed full agreement with CT, 26 (23.6%) showed partial agreement with CT. 9 sinuses had no lower image under the hard palate in panoramic radiography due to the smaller size of sinus. In Waters' projection, the radiodensity of 105 sinuses (95.5%) were consistent with that of CT. The panoramic radiography showed 90.0% of the sinus conditions fully or partially which may appear less accurate than that of Water's view (95.5%) but with more detailed information of the inferior part of sinuses.

  15. A case report of incidental finding of fungus ball on CBCT of maxillary sinus in treatment planning of dental implant

    International Nuclear Information System (INIS)

    This report was to show the radiographic appearances of the fungus ball in a paranasal sinus and to emphasize the scan area of cone beam computed tomography (CBCT) to detect the calcification in the paranasal sinus. A seventy four-year-old woman visited our department for the implant rehabilitation at both maxillary posterior edentulous region. Pre-operative radiographic examinations including the panoramic, CBCT, and multidector CT images were taken. An opacification in the right maxillary sinus was observed on the multiplanar image of CBCT, however the pre-determined scan area of CBCT in this report hardly showed the calcifications at the central portion of the maxillary sinus. The opacification in the maxillary sinus could be misdiagnosed as chronic maxillary sinusitis if the calcification of fungus ball was not simultaneously detected. The scan area of pre-operative CBCT needs to be enough to scan the paranasal sinus from top to bottom.

  16. A case report of incidental finding of fungus ball on CBCT of maxillary sinus in treatment planning of dental implant

    Energy Technology Data Exchange (ETDEWEB)

    Lee, Byung Do [Department of Oral and Maxillofacial Radiology, School of Dentistry, Wonkwang University, Iksan (Korea, Republic of)

    2010-06-15

    This report was to show the radiographic appearances of the fungus ball in a paranasal sinus and to emphasize the scan area of cone beam computed tomography (CBCT) to detect the calcification in the paranasal sinus. A seventy four-year-old woman visited our department for the implant rehabilitation at both maxillary posterior edentulous region. Pre-operative radiographic examinations including the panoramic, CBCT, and multidector CT images were taken. An opacification in the right maxillary sinus was observed on the multiplanar image of CBCT, however the pre-determined scan area of CBCT in this report hardly showed the calcifications at the central portion of the maxillary sinus. The opacification in the maxillary sinus could be misdiagnosed as chronic maxillary sinusitis if the calcification of fungus ball was not simultaneously detected. The scan area of pre-operative CBCT needs to be enough to scan the paranasal sinus from top to bottom.

  17. Etiology and clinical characteristics of symptomatic unilateral maxillary sinusitis: A review of 174 cases.

    Science.gov (United States)

    Troeltzsch, Matthias; Pache, Christoph; Troeltzsch, Markus; Kaeppler, Gabriele; Ehrenfeld, Michael; Otto, Sven; Probst, Florian

    2015-10-01

    The purpose of the study was to analyze the causative pathology associated with symptomatic unilateral maxillary sinusitis requiring surgical treatment. A retrospective review of all patients that have been treated surgically for unilateral symptomatic maxillary sinusitis between 2006 and 2013 at a single institution was performed. Demographic, anamnesis, clinical, radiological, microbiological and histological data were gathered and analyzed. The patients were allocated into groups depending on the underlying cause of the disease. Descriptive and inferential statistics were computed (level of significance: p ? 0.05). The study sample was composed of 174 patients (72 female; 102 male) with a mean age of 52.7 years (SD 16.9). Most cases (130; 75%) were triggered by odontogenic pathology following dentoalveolar surgical interventions (83/130 patients; 64%). Other etiological factors for odontogenic unilateral sinusitis were periapical (23/130 cases; 18%) and periodontal pathology (13/130 cases; 10%). Rhinogenic factors for sinusitis were detected in 13 patients (7.5%) and dental implant-associated unilateral maxillary sinusitis was diagnosed in nine patients (5.2%). Four patients (2.3%) had undergone previous sinus augmentation surgery. A leading cause for the sinus infection could not be identified in 18 patients (10%) who all had a history of midfacial surgery. Medication-related osteonecrosis of the jaw (8) and squamous cell carcinoma (2) were incidental findings. There were no differences in the clinical appearance of the disease with respect to its etiology. Odontogenic causes for maxillary sinusitis must be considered especially in unilateral cases. Maxillary dental implants may induce symptomatic unilateral maxillary sinusitis. PMID:26319958

  18. Aspergillosis of the maxillary sinus. A clinical analysis of 24 cases. Comparision with 30 cases of non-fungal maxillary sinusitis

    International Nuclear Information System (INIS)

    The clinical and radiographic findings of 24 patients with aspergillosis of the maxillary sinus treated from 1989 through 2004 were compared with those of 30 patients with non-fungal maxillary sinusitis to clarify factors related to differential diagnosis. The subjects with aspergillosis were 9 men and 15 women aged 26 to 78 years (mean, 52 years). The patients with non-fungal sinusitis were 25 men and 5 women aged 23 to 73 years (mean, 46 years). The most common clinical finding at presentation was cheek pain, followed by nasal symptoms in the aspergillosis group. Nasal symptoms were more common in the non-fungal group than in the aspergillosis group. Thus, pain was more often associated with aspergillosis. Radiographically, diffuse radiopacity was observed in the maxillary sinus of all patients in both groups. In addition, dense antral radiopacities indicative of calcification were seen in a patient with aspergillosis. On X-ray-CT scans, bone thickening of antral walls (23 cases), sand-like high density areas (20 cases), extension of soft tissue masses to the nasal cavity (17 cases), foamy low density areas (13 cases), and bone destruction (6 cases) were seen in the aspergillosis group. These findings were rarely seen in the non-fungal group. All patients in both groups were treated by radical surgery of the maxillary sinus. The postoperative course was uncomplicated, and there was no recurrence as of 1 year postoperatively. In conclusion, the presence of pain, bone thickening of antral walls, sand-like high density areas, extension of soft tissue masses to the nasal cavity, foamy low density areas, and bone destruction on X-ray-CT scans were valuable for diagnosing aspergillosis of the maxillary sinus. (author)

  19. Rigid nasal endoscopy versus sinus puncture and aspiration for microbiologic documentation of acute bacterial maxillary sinusitis.

    Science.gov (United States)

    Talbot, G H; Kennedy, D W; Scheld, W M; Granito, K

    2001-11-15

    Sinus puncture and aspiration is an invasive procedure that hinders patient enrollment in studies of acute bacterial maxillary sinusitis (ABMS). Pain and minor bleeding also limit its potential diagnostic utility in clinical practice. Cultures obtained by rigid nasal endoscopy were compared with those from sinus puncture and aspiration in 53 patients with ABMS; 46 patients were assessable. Considering recovery of Haemophilus influenzae, Moraxella catarrhalis, or Streptococcus pneumoniae from puncture and aspiration as the gold standard, endoscopy cultures demonstrated a sensitivity of 85.7% (95% confidence interval, 56.2-97.5), specificity of 90.6% (73.8-97.5), positive predictive value of 80% (51.4-94.7), negative predictive value of 93.5% (77.2-98.9), and accuracy of 89.1% (75.6-95.9). Ten adverse events related to puncture and aspiration occurred in 5 (9.6%) of 52 patients; there were no endoscopy-related adverse events. In our study, the largest to date, endoscopic sampling compared favorably with puncture and aspiration for identifying H. influenzae, M. catarrhalis, and S. pneumoniae in ABMS and produced less morbidity. PMID:11595989

  20. Hemangioma of the Maxillary Sinus Presenting as a Mass: CT and MR Features

    International Nuclear Information System (INIS)

    Hemangiomas of the sinonasal tract are rare, and because these lesions lack the typical signs or symptoms, they can be confused with other malignant conditions. We report a case of cavernous hemangioma of the maxillary sinus in a 68-year-old man that was completely resected by endoscopic sinus surgery. Although computed tomography (CT) and magnetic resonance imaging (MRI) showed several enhancing areas within the tumor, the substantial bone erosion and remodeling made it difficult to differentiate this cavernous hemangioma from other expansile maxillary sinus lesions. We present the CT and MR findings of this lesion and discuss the differential diagnoses and potential therapeutic approaches

  1. Macroscopic purulence, leukocyte counts, and bacterial morphotypes in relation to culture findings for sinus secretions in acute maxillary sinusitis.

    OpenAIRE

    Jousimies-Somer, H R; Savolainen, S.; Ylikoski, J S

    1988-01-01

    Macroscopic purulence, leukocyte counts, and bacterial morphotypes in Gram-stained smears were investigated in 335 sinus secretions (240 aspirates and 95 injection aspirates) obtained by puncture in 234 young patients with acute maxillary sinusitis. Over 90% of the 147 aspirates macroscopically classified as purulent also contained high numbers of leukocytes (greater than 20 per oil immersion field). A total of 82% of the 147 macroscopically purulent aspirates and 79% of the 156 aspirates con...

  2. Comparison of panoramic radiography and cone beam computed tomography for assessing the relationship between the maxillary sinus floor and maxillary molars

    International Nuclear Information System (INIS)

    This study compared panoramic radiography and cone beam computed tomography (CBCT) for evaluating the relationship between the maxillary sinus floor and the roots of maxillary molars. Paired panoramic radiographs and CBCT images from 97 subjects were analysed. This analysis classified 388 maxillary molars according to their relationship to the maxillary sinus floor on panoramic radiograph and CBCT. Correlations between these two radiographic techniques were examined. Maxillary molar roots that were separate from the sinus floor showed the same classification in 100% of the cases when using these two imaging techniques. The corresponding percentage for such roots that were in contact with the sinus floor was 75%. When roots overlapped the maxillary sinus floor on panoramic radiographs, only 26.4% of maxillary first molars and 60.0% of second molars showed protrusion of roots into the sinus with CBCT. The results of the study suggest that roots projecting into the sinus on panoramic radiographs require a three-dimensional image in order to analyze the proximity of their apex to the sinus floor.

  3. Virtual planning and construction of prototyped surgical guide in implant surgery with maxillary sinus bone graft

    Scientific Electronic Library Online (English)

    Renato Jahjah Cunha, Martins; Henrique Manoel, Lederman.

    2013-09-01

    Full Text Available PURPOSE: To evaluate the efficacy of associating techniques of bone grafting in the maxillary sinus with the use of a prototyped surgical guide for planning and positioning dental implants in total edentulous maxillae, rehabilitated after six months. METHODS: Eight patients consecutives with totally [...] edentulous maxilla presenting few remaining bone in the posterior alveolar ridge, associated with pneumatization of the maxillary sinus were selected. Twenty eight Brånemark RP 10mm implants were installed in 14 maxillary sinuses. The surgical planning for the implant installation was performed with the DentalSlice software by means of a computerized tomography. The obtained images were used for building a surgical guide that, placed over the maxilla, showed the exact position for the implants installation (prototyped surgical guide). The portion of the implants that went into the maxillary sinus was covered by an autogenous bone graft. RESULTS: The patients were re-evaluated six months after the surgery and a 100% success rate was achieved. All of the implants presented no mobility or symptoms, permitting an oral rehabilitation with total fixed screw-retained prosthesis over the implants. CONCLUSION: The technique of associating implants and bone graft in the maxillary sinus aided by a prototyped guide planned on DentalSlice has showed itself efficient for positioning implants and for quantifying and locating the bone graft.

  4. Inflammatory myofibroblastic tumour of the maxillary sinus: CT and MRI findings

    International Nuclear Information System (INIS)

    Aim: To characterize the computed tomography (CT) and magnetic resonance imaging (MRI) findings of inflammatory myofibroblastic tumours (IMTs) of the maxillary sinus. Materials and methods: The imaging findings of eight patients with IMTs of the maxillary sinus were reviewed retrospectively. Of the eight patients, four patients underwent unenhanced and contrast-enhanced CT, and one patient underwent unenhanced CT only; three patients underwent unenhanced and contrast-enhanced MRI. Results: Five cases of IMTs occurred in the left maxillary sinus, while three cases were right-sided. Four cases occupied the entire sinus, and the other four cases only partially occupied the sinus. Unenhanced CT images showed heterogeneous masses in four cases and a homogeneous mass in one case. One of the tumours showed some areas of calcification. T1-weighted MRI images showed isointense lesions. T2-weighted images showed mixed isointense and mild hyperintense lesions. All cases showed bone destruction and had infiltrated into the nasal fossa, orbit, infratemporal fossa, and other adjacent tissues. Seven cases showed mild to moderate heterogeneous enhancement on contrast-enhanced CT or T1-weighted MRI images. Conclusion: IMTs of the maxillary sinus can be characterized as a soft-tissue mass with bony destruction and infiltration of the adjacent tissues, with mild to moderate enhancement after the injection of contrast medium. CT and MRI can help to diagnose IMTs, determine the extent of the lesion and its relationship with adjacent tissues, and thus facilitate the prediction of surgical resectability.

  5. Absceso cerebral como complicación de sinusitis maxilar / Brain abscess as a complication of maxillary sinusitis

    Scientific Electronic Library Online (English)

    Karen Vanessa, Alvayero Mejía; Carlos, Marques de Carvalho; Aixa, Martínez Romero; María del Carmen, Luis Álvarez; Odette, Pantoja Pereda; Dayamí, Benítez Rodríguez.

    2012-12-01

    Full Text Available El absceso cerebral es una infección infrecuente en el niño, pero puede ser muy grave con riesgo para la vida aun con los avances diagnósticos y terapéuticos disponibles. Su presentación clínica varía en dependencia de la localización, y el diagnóstico requiere un alto índice de presunción, ya que p [...] uede presentarse como complicación de procesos infecciosos frecuentes en la infancia. Se presenta el caso de una paciente de 5 años de edad, con un absceso cerebral frontal, secundario a sinusitis maxilar. Se describen las manifestaciones clínicas, resultados de exámenes complementarios y tratamiento. Abstract in english Brain abscess is an uncommon infection in the child, but it may represent a very serious life-threatening risk even if many diagnostic and therapeutic advances are available. Its clinical presentation depends on location and the diagnosis requires a lot of presumption since it may also appear as a c [...] omplication of frequent infectious processes in the childhood. This is the case of 5 years-old girl suffering frontal brain abscess secondary to maxillary sinusitis. The clinical manifestations, the results of supplementary tests and of the treatment were described.

  6. Displasia fibrosa de seno maxilar / Fibrous Dysplasia of Maxillary Sinus

    Scientific Electronic Library Online (English)

    Cecilia, Parladé Formell; Yamily, González Cardona; Portelles Massó, Ayelén M; Julio O, Fuentes de la Rosa; Mirian, Vivar Bauzá.

    2015-03-01

    Full Text Available La displasia fibrosa fue descrita por Lichtenstein en 1938, es una enfermedad caracterizada por el reemplazo progresivo de tejido óseo normal por una proliferación de tejido conectivo fibroso, por su forma de presentación se clasifica en monostótica o poliostótica. La forma monostótica, localizada e [...] n la región craneofacial constituye solo el 10 % de los casos, se presenta con mayor frecuencia en el maxilar superior y puede afectar a huesos adyacentes como el cigomático, esfenoides y occipital. La degeneración sarcomatosa puede ocurrir en un 0,5 %. Se presenta el caso de una paciente femenina, de 37 años de edad, operada ocho años antes de displasia fibrosa en el Servicio de Cirugía Máxilofacial del Hospital Vladimir I. Lenin, que luego de su embarazo y parto presenta un aumento de volumen en área malar y maxilar izquierdos, a la que se le realiza biopsia que da como resultado una recidiva. Se le realiza cirugía remodelativa de pared anterior de seno maxilar, a través de una incisión de Weber-Ferguson, con buenos resultados estéticos y funcionales. Abstract in english Fibrous dysplasia was described by Lichtenstein in 1938, is a progressive disease characterized by replacement of normal bone tissue by proliferation of fibrous connective tissue, its presentation is classified in monostotic or polyostotic. The monostotic form, located in the craniofacial region con [...] stitutes only 10 % of cases, it occurs most frequently in the maxilla and adjacent bones can affect as the zygomatic, sphenoid and occipital. The sarcomatous degeneration can occur in 0.5 %. A 37-year-old female patient, who underwent fibrous dysplasia surgery eight years ago at Maxillofacial Surgery Department of Vladimir I. Lenin Hospital, which after the pregnancy and delivery presented a volume increase in malar and left area is presented in this paper, biopsy is performed whose results showed a recurrence. Remodeling surgery was performed of anterior wall of the maxillary sinus through a Weber-Ferguson incision with good cosmetic and functional results.

  7. A radiographic study on the morphology of the maxillary sinus in adolescents and adults

    International Nuclear Information System (INIS)

    The purpose of this study was radiographic analysis of the morphology of maxillary sinus in adolescents and adults. In order to analyze the morphology of maxillary sinus in view point of anteroposterior width of medial wall, vertical distance between antral floor and nasal floor level, anterior extension, distance between antral floor and maxillary 1st molar apex, and types of lower border of maxillary sinus, specialized maxillary projection and periapical view with paralleling technique was taken. The author examined orthopantomograms and intraoral standard views taken from 400 adolescents and adults ranged 15-65 years-old. The obtained results were as follows: 1. The antero-posterior width of medial wall of maxillary sinus was 32.80 mm in 15-19 year-old group, 33.86 mm in 20-24 year-old group, 34.09 mm in 25-29 year-old group, and 33.67 mm in 30-65 year-old group, and left maxillary sinus was somewhat smaller than the right. 2. The vertical distance between antral floor and nasal floor level was 8.49 mm in 15-19 year-old group, 9.05 mm i n 20-24 year-old group, 8.95 mm in 25-29 year-old group, and 8.32 mm in 30-65 year-old group. 3. The order of anterior extension of maxillary sinus were distal half of canine, mesial half of canine, mesial half of 1st premolar, and distal half of 1st premolar. 4. The distance between antral floor and maxillary 1st molar were 4.36 mm in 15-19 year-old group, 4.77 mm in 20-24 yea r-old group, 3.58 mm in 25-29 year-old group, and 2.33 mm in 30-65 year-old group. 5. The order of the types of lower border of maxillary sinus were entire downward type, close type, partially downward type, waving type, separating type, and indistinct. In the types of antral floor, there was a tendency to increase the separating type with age.

  8. Brown tumor mimicking maxillary sinus mucocele as the first manifestation of primary hyperparathyroidism

    DEFF Research Database (Denmark)

    Guldfred, Liviu-Adelin; Daugaard, SØren

    2012-01-01

    We describe the first case of brown tumor mimicking a maxillary sinus mucocele as the first manifestation of the patient's primary hyperparathyroidism. A 34-year old woman presented with a 14 days history of elevation of the right orbit, retrobulbar pain and cheek anesthesia. The CT and MR evaluation showed a mass, initially described as mucocele of the right maxillary sinus. The laboratory studies revealed hyperparathyroidism. The patient underwent acute surgery, and the mass appeared clinically as mucocele. The histological examination of the resected lesion revealed changes representing either giant cell granuloma or brown tumor. The finding of hyperparathyroidism confirmed the diagnosis of brown tumor. To our knowledge, this is the first report of cystic brown tumor mimicking a mucocele of the maxillary sinus.

  9. A rare cause of nasolacrimal duct obstruction: Dentigerous cyst in the maxillary sinus

    OpenAIRE

    Ray Biswarup; Bandyopadhyay Saumendra; Das Debabrata; Adhikary Bivas

    2009-01-01

    The most common abnormality of the lacrimal drainage system is congenital or acquired nasolacrimal duct obstruction. The causes of acquired nasolacrimal duct obstruction may be primary or secondary. The secondary acquired obstructions may result from infection, inflammation, neoplasm, trauma or mechanical causes. The maxillary sinus cysts usually obstruct the nasolacrimal duct mechanically. Dentigerous cysts are one of the main types of maxillary cysts. These cysts are benign odontogenic cyst...

  10. Hemangioma of the Maxillary Sinus Presenting as a Mass: CT and MR Features

    OpenAIRE

    Jung, Won Sang; Yoo, Chang Young; Park, Yong-Jin; Ihn, Yon Kwon

    2015-01-01

    Hemangiomas of the sinonasal tract are rare, and because these lesions lack the typical signs or symptoms, they can be confused with other malignant conditions. We report a case of cavernous hemangioma of the maxillary sinus in a 68-year-old man that was completely resected by endoscopic sinus surgery. Although computed tomography (CT) and magnetic resonance imaging (MRI) showed several enhancing areas within the tumor, the substantial bone erosion and remodeling made it difficult to differen...

  11. Bilateral maxillary sinus floor augmentation with tissue-engineered autologous osteoblasts and demineralized freeze-dried bone

    OpenAIRE

    Deshmukh, Aashish; Kalra, Rinku; Chhadva, Shruti; Shetye, Angad

    2015-01-01

    The pneumatization of the maxillary sinus often results in a lack of sufficient alveolar bone for implant placement. In the last decades, maxillary sinus lift has become a very popular procedure with predictable results. Sinus floor augmentation procedures are generally carried out using autologous bone grafts, bone substitutes, or composites of bone and bone substitutes. However, the inherent limitations associated with each of these, have directed the attention of investigators to new techn...

  12. Morphometric Analysis of Developing Maxillary Sinuses in Human Foetuses Análisis Morfométrico del Desarrollo de los Senos Maxilares en Fetos Humanos

    OpenAIRE

    Ghaus Farah; Ahmad Faruqi Nafis

    2006-01-01

    The development of the paranasal sinuses, in human race and in many mammals remained as much an enigma as it did nearly two millennia ago. Morphometric analysis of maxillary sinuses in human foetuses are not fully documented and also their morphological studies in Indian population are non-existent. So the present study was conducted to determine the different diameters, the pattern of growth, sexual dimorphism and bilateral variations in maxillary sinuses. 37 human foetuses of different age ...

  13. Long-term Survivors of Adult Rhabdomyosarcoma of Maxillary Sinus Following Multimodal Therapy: Case Reports and Literature Reviews

    OpenAIRE

    Tsung-Han Wu; Jen-Seng Huang; Hung-Ming Wang; Cheng-Hsu Wang; Kun-Yun Yeh

    2010-01-01

    Rhabdomyosarcoma of the maxillary sinus is uncommon in adults. The clinical courseand appropriate treatment strategy for the disease remains to be elucidated. This articledescribes two adult patients with rhabdomyosarcoma of the maxillary sinus who achievedlong-term survival after undergoing multimodal therapy. We also reviewed the literatureregarding 23 patients who were 15 years of age or older and had rhabdomyosarcoma of themaxillary sinus and were treated between 1950 and 2000. Results of...

  14. Spiral Computed Tomography Based Maxillary Sinus Imaging in Relation to Tooth Loss, Implant Placement and Potential Grafting Procedure

    Directory of Open Access Journals (Sweden)

    Reinhilde Jacobs

    2010-01-01

    Full Text Available Objectives: The purpose of the present study was to explore the maxillary sinus anatomy, its variations and volume in patients with a need for maxillary implant placement.Materials and Methods: Maxillary sinus data of 101 consecutive patients who underwent spiral computed tomography (CT scans for preoperative implant planning in the maxilla at the Department of Periodontology, University Hospital, Catholic University of Leuven, Leuven, Belgium were retrospectively evaluated. The alveolar bone height was measured on serial cross-sectional images between alveolar crest and sinus floor, parallel to the tooth axis. In order to describe the size of the maxillary sinus anteroposterior (AP and mediolateral (ML diameters of the sinus were measured.Results: The results indicated that the alveolar bone height was significantly higher in the premolar regions in comparison to the molar region (n = 46, P 4 mm mucosal thickening mostly at the level of the sinus floor. The present sample did not allow revealing any significant difference (P > 0.05 in maxillary sinus dimensions for partially dentate and edentulous subjects.Conclusions: Cross-sectional imaging can be used in order to obtain more accurate information on the morphology, variation, and the amount of maxillary bone adjacent to the maxillary sinus.

  15. Associations between inflammatory cells infiltrating the ethmoid sinus mucosa, and nasal polyp size and grade of ethmoid sinus opacification on CT images in chronic sinusitis

    International Nuclear Information System (INIS)

    We investigated the types and numbers of inflammatory cells that infiltrated the ethmoid sinus mucosa in cases of chronic sinusitis in order to identify any associations with nasal polyp size and the grade of ethmoid sinus opacification on computer tomography images. The subjects were patients with chronic sinusitis who underwent endoscopic sinus surgery. Seventeen subjects also had bronchial asthma as a complication (six with aspirin-induced asthma, 11 with another form of asthma) and 24 did not have bronchial asthma as a complication (16 with allergic rhinitis, 8 with chronic sinusitis alone). The nasal polyps in the patients with bronchial asthma were significantly larger than those in the patients without bronchial asthma. Investigation of the numbers of infiltrating inflammatory cells according to polyp size revealed significantly more eosinophils as polyp size increased. In addition, infiltration of significantly more mast cells was observed when the polyps were large. Assessment of the grade of opacification of the ethmoid sinuses on computer tomography images showed a significantly higher grade of opacification in the patients with bronchial asthma than in the patients without bronchial asthma. Comparisons between the grade of opacification of the ethmoid sinuses and the number of infiltrating inflammatory cells revealed significantly more infiltrating eosinophils and mast cells in the patients with intense ethmoid sinus opacification. The above findings suggest that eosinophils and mast cells play a major role in forming the persistent inflammation of the sinus mucosa and nasal polyp tissue of patients with chronic sinusitis complicated by bronchial asthma. (author)

  16. Decellularized Human Maxillary Sinus Schneiderian Membrane as a Potential Scaffold for Tissue Engineering

    Directory of Open Access Journals (Sweden)

    Saeedeh KhajehAhmadi

    2013-01-01

    Full Text Available Introduction: Biological matrix has received special attention in recent medical and biological researches. Cells of tissue are supported by extracellular matrix (ECM. Extracellular matrix is used as a scaffold for morphogenesis, proliferation, migration, and differentiation in tissue engineering. Extracellular matrix of natural tissues can be used as a scaffold for reconstructing biological tissues in tissue engineering. Human maxillary sinus membrane consists of cells and ECM which contain collagen, elastin, and proteoglycans. Collagen can be used as a natural scaffold via high level of biocompatibility. Materials & Methods: In this study, Human maxillary sinus membrane were decellularized by two techniques , physical method (liquid nitrogen and chemical procedures via increment concentration of sodium dodecyl sulfate (SDS in three groups. The samples were fixed with Bouin's fixator, and then were stained with Hematoxylin & Eosin. decellularised Human maxillary sinus membrane was evaluated with scanning electrone microscope.Results: Histological evaluation of decellularized scaffolds revealed that cells of the schneiderian membrane tissues were completely removed via concentration of 1% of SDS. Scanning Electrone Microscope (SEM (Leo-VP1450, Germany of the scaffolds indicated that collagen fibers of connective tissue remained intact. In 0.5 and 0.1% concentrations of SDS, few cells were observed at peripheral of ECM, so decellularization process was not complete. Conclusion: According to the results, scaffolds prepared from Human Maxillary Sinus Membrane could be used as a suitable scaffold for In vitro investigation and reconstruction and tissue engineering.

  17. Alveolar Ridge and Maxillary Sinus Augmentation Using rhBMP-2

    DEFF Research Database (Denmark)

    de Freitas, Rubens Moreno; Spin-Neto, Rubens; Junior, Elcio Marcantonio; Pereira, Luís Antônio Violin Dias; Wikesjö, Ulf Me; Susin, Cristiano

    2013-01-01

    The aim of this systematic review was to evaluate clinical and safety data for recombinant human bone morphogenetic protein-2 (rhBMP-2) in an absorbable collagen sponge (ACS) carrier when used for alveolar ridge/maxillary sinus augmentation in humans.

  18. Unicystic ameloblastoma of the maxillary sinus: Pitfalls of diagnosis and management

    OpenAIRE

    Pitak-Arnnop, P; Chaine, A; Dhanuthai, K.; Bertrand, J. C.; Bertolus, C.

    2010-01-01

    Background: Ameloblastoma is a common odontogenic tumor of the jaws that comprises 3 variants: conventional (solid), unicystic and peripheral ameloblastomas. Unicystic ameloblastoma (UA) in the maxillary sinus is very rare. With a secondary infection, the clinical features may lead to incorrect diagnosis and treatment.

  19. Alveolar Ridge and Maxillary Sinus Augmentation Using rhBMP-2 : A Systematic Review

    DEFF Research Database (Denmark)

    de Freitas, Rubens Moreno; Spin-Neto, Rubens

    2013-01-01

    The aim of this systematic review was to evaluate clinical and safety data for recombinant human bone morphogenetic protein-2 (rhBMP-2) in an absorbable collagen sponge (ACS) carrier when used for alveolar ridge/maxillary sinus augmentation in humans.

  20. Usefulness of Panoramic Radiography in the Detection of Maxillary Sinus Pathosis

    International Nuclear Information System (INIS)

    to evaluate the usefulness of the panoramic radiography, generally used in dental clinic, for the detection of the maxillary sinus pathosis due to the inflammation and tumor, through the comparison with CT findings as the absolute standard. 150 maxillary sinuses of 75 patients with or without particular signs and symptoms and showing soft tissue lesions or destruction of maxillary sinus walls in at least one sinus in CT, were selected as subject samples, and the panoramic radiography of the same patients were interpretated by 3 dental radiologists and 3 non dental radiologist given no previous information. Using the CT findings as the absolute standard, the diagnostic ability of panoraimc radiography in the mucosal thickening, maxillary sinus haziness, inferior wall destruction, medial wall destruction, posterolateral wall destruction and the superior wall destruction was evaluated using the ROC curve and the difference between dental radiologist group and non dental radiologist group was also evaluated. 1. When dental radiologist group interpretated the destruction of inferior wall and posterolateral wall, the kappa value which shows interobserver's coincidence was above 0.75.2. The diagnostic ability according to site of interpretation was the highest when the inferior wall was interpretated in both observer groups and there was a statistically significant difference between the dental radiologist group and non dental radiologist group in interpretating the mucosal thickening, haziness, destruction of the inferior and medial wall (p<0.05).3. The diagnostic ability in detecting the destruction of the sinus walls was better than in soft tissue lesions in both groups and between the groups there was a statistically significant difference (p<0.05). When detecting the destruction of inferior and posterolateral wall of the maxillary sinus there was coincident with that of CT findings, and so it is considered that diagnostic ability of panoramic radiography is high in this point. But in interpretating the destruction of medial wall and soft tissue lesions, diagnostic ability of the panoramic radiography was relatively low and there was a significant difference between the dental radiologist group and non dental radiologist group. Therefore CT or other auxiliary diagnostic method will be necessary when evaluating thorough pathosis of maxillary sinus objectively.

  1. Changes in computed tomography findings according to the chronicity of maxillary sinus gossypiboma.

    Science.gov (United States)

    Kim, Kyung Soo

    2014-07-01

    The present report describes a case of gossypiboma in the maxillary sinus after treatment for the fracture of the orbital floor with review of the literatures on this interesting disease entity. The suspicion of gossypiboma should be raised when a patient with a history of previous sinonasal surgery, especially Caldwell-Luc approach, presents with chronic recurrent or refractory sinusitis. Because of the rarity of reported cases, typical computed tomography findings of gossypiboma in the sinonasal area have not been established. In the present case, because the gauze was retained for 25 years in the maxillary sinus, computed tomography findings revealed nonspecific findings. Because a foreign body left behind after operation may lead to a serious medicolegal issue, it is worth reemphasizing that the best general approach to retained surgical foreign body is to prevent its occurrence. PMID:24978684

  2. Association Between the Lateral Wall Thickness of the Maxillary Sinus and the Dental Status: Cone Beam Computed Tomography Evaluation

    International Nuclear Information System (INIS)

    Assessment of the lateral wall thickness of the maxillary sinus is very important in decision making for many surgical interventions. The association between the thickness of the lateral wall of the maxillary sinus and the dental status is not well identified. To compare the thickness of the lateral wall of the maxillary sinus in individuals with and without teeth to determine if extraction of the teeth can lead to a significant reduction in the thickness of the maxillary sinus lateral wall or not. In a retrospective study on fifty patients with an edentulous space, the thickness of the lateral wall of the maxillary sinus,one centimeter above the sinus floor in the second premolar (P2), first molar (M1) and second molar (M2) areas was determined by cone beam computed tomography scans(CBCTs) and a digital ruler in Romexis F software (Planmeca Romexis 2.4.2.R) and it was compared with values measured in fifty dentated individuals. Three way analysis of variance was applied for comparison after confirmation of the normal distribution of data. The mean of the wall thickness in each of these points was lower in patients with edentulous spaces; however it was not significant. There was no association between gender and the thickness of the lateral wall of the maxillary sinus, but location was associated with different thicknesses. The differences in the thickness based on the location and dental status necessitates assessment of the wall thickness of the maxillary sinus in addition to the current evaluation of bone thickness between the sinus floor and the edentulous crest before maxillary sinus surgery

  3. Near-infrared imaging for management of chronic maxillary sinusitis

    Science.gov (United States)

    You, Joon S.; Cerussi, Albert E.; Kim, James; Ison, Sean; Wong, Brian; Cui, Haotian; Bhandarkar, Naveen

    2015-03-01

    Efficient management of chronic sinusitis remains a great challenge for primary care physicians. Unlike ENT specialists using Computed Tomography scans, they lack an affordable and safe method to accurately screen and monitor sinus diseases in primary care settings. Lack of evidence-based sinusitis management leads to frequent under-treatments and unnecessary over-treatments (i.e. antibiotics). Previously, we reported low-cost optical imaging designs for oral illumination and facial optical imaging setup. It exploits the sensitivity of NIR transmission intensity and their unique patterns to the sinus structures and presence of fluid/mucous-buildup within the sinus cavities. Using the improved NIR system, we have obtained NIR sinus images of 45 subjects with varying degrees of sinusitis symptoms. We made diagnoses of these patients based on two types of evidence: symptoms alone or NIR images along. These diagnostic results were then compared to the gold standard diagnosis using computed tomography through sensitivity and specificity analysis. Our results indicate that diagnosis of mere presence of sinusitis that is, distinguishing between healthy individuals vs. diseased individuals did not improve much when using NIR imaging compared to the diagnosis based on symptoms alone (69% in sensitivity, 75% specificity). However, use of NIR imaging improved the differential diagnosis between mild and severe diseases significantly as the sensitivity improved from 75% for using diagnosis based on symptoms alone up to 95% for using diagnosis based on NIR images. Reported results demonstrate great promise for using NIR imaging system for management of chronic sinusitis patients in primary care settings without resorting to CT.

  4. Clinical study of paranasal sinus carcinoma except for maxillary sinus carcinoma

    International Nuclear Information System (INIS)

    We reviewed the clinical characteristics of 20 patients with ethmoid sinus carcinoma, 3 patients with frontal sinus carcinoma and 6 patients with sphenoid sinus carcinoma who received treatment at the Kurume University Hospital between 1984 and 2009. Ages of the patients ranged from 35 to 82 years old (average: 62). Six of 10 ethmoid sinus carcinoma patients who were treated by combined treatment with surgery were alive. Two of 10 ethmoid sinus carcinoma patients without surgery were alive. All patients with frontal sinus carcinoma who received combined treatment with anterior skull base surgery were alive with local control. Patients with sphenoid sinus carcinoma were treated by chemoradiotherapy and 4 patients were alive. The results of this clinical study indicate that combined therapy including skull base surgery is effective for ethmoid sinus and frontal sinus carcinomas. In contrast, chemoradiotherapy is favorable for sphenoid sinus carcinomas. (author)

  5. Endoscopic sinus surgery in individuals with facial pain due to chronic maxillary sinusitis ? a functional controlled study

    Directory of Open Access Journals (Sweden)

    Giuseppe Sanges

    2014-08-01

    Full Text Available Objective: To measure the intra-sinus pressure and the maxillary sinus functional efficiency (MSFE in individuals with chronic facial pain after conservative or conventional endoscopic maxillary surgery, as well as in controls. Method: Sinus manometry was performed 5 times during inhalation. Results: The resemblance of pressure values comparing those treated with minimally invasive surgery and controls was remarkable, while traditional surgery significantly decreased intrasinusal pressures. The MSFE was 100% in the three tested times for controls, close to that in those submitted to minimally invasive surgery (98.3%, 98.8%, and 98.0% and significantly impaired after conventional surgery (48.8%, 52.1%, 48.5 %, p<0.01. All patients submitted to minimally invasive surgery remained pain-free after three months of surgery, relative to 46.7% of the submitted to conventional surgery (p<0.05. Conclusion: Minimally invasive sinus surgery is associated with functionality of the chambers that resemble what is found in normal individuals.

  6. An assessment of maxillary sinus and alveolar bone in cross-sectional linear tomogram of panorama

    International Nuclear Information System (INIS)

    To evaluate the precision of measurements taken of dental implants in bucco-lingually sectioned views of the maxilla by linear tomograms of the panorama and to assess the visibility of the inferior wall of the maxillary sinus. Eighty sites prepared with implants of gutta percha cone in the sockets of the upper premolars and molars of 10 dry skulls were radiographically examined using linear tomograms of panorama, and scanned coronally and axially by computed tomography. The differences in mm between the measurements in bucco-lingually sectioned images of maxillary alveolar bone and the true length and width of the implanted gutta percha cones were compared as mean values (mean) and standard deviation (SD) for each radiographic technique. Linear tomography of panorama was compared with computed tomography for visualization of the relationship between the inferior wall of maxillary sinus and the end of each implant. The deviations between the actual implant length and the measured values taken from the linear tomograms (0.44 ± 0.39 mm) was significantly less than the measured values from the multiplanar reconstructed images of the axially scanned computed tomogram (1.21 ± 0.90 mm). There was statistically significant difference (p<0.05) between two techniques in the differences between the measurements and true implant length. The relationship of the inferior border of maxillary sinus with end of implant was worse identified with the linear tomogram of panorama (68%) than the multiplanar reconstructed image of axially scanned computed tomogram (99%). We could not find any differences in the accuracy of length measurement between the linear tomogram of panorama and computed tomogram, but computed tomogram allowed for a better visualization of the inferior wall of the maxillary sinus than the linear tomogram.

  7. An assessment of maxillary sinus and alveolar bone in cross-sectional linear tomogram of panorama

    Energy Technology Data Exchange (ETDEWEB)

    Kim, Jae Duk [Chosun University College of Medicine, Gwangju (Korea, Republic of)

    2003-09-15

    To evaluate the precision of measurements taken of dental implants in bucco-lingually sectioned views of the maxilla by linear tomograms of the panorama and to assess the visibility of the inferior wall of the maxillary sinus. Eighty sites prepared with implants of gutta percha cone in the sockets of the upper premolars and molars of 10 dry skulls were radiographically examined using linear tomograms of panorama, and scanned coronally and axially by computed tomography. The differences in mm between the measurements in bucco-lingually sectioned images of maxillary alveolar bone and the true length and width of the implanted gutta percha cones were compared as mean values (mean) and standard deviation (SD) for each radiographic technique. Linear tomography of panorama was compared with computed tomography for visualization of the relationship between the inferior wall of maxillary sinus and the end of each implant. The deviations between the actual implant length and the measured values taken from the linear tomograms (0.44 {+-} 0.39 mm) was significantly less than the measured values from the multiplanar reconstructed images of the axially scanned computed tomogram (1.21 {+-} 0.90 mm). There was statistically significant difference (p<0.05) between two techniques in the differences between the measurements and true implant length. The relationship of the inferior border of maxillary sinus with end of implant was worse identified with the linear tomogram of panorama (68%) than the multiplanar reconstructed image of axially scanned computed tomogram (99%). We could not find any differences in the accuracy of length measurement between the linear tomogram of panorama and computed tomogram, but computed tomogram allowed for a better visualization of the inferior wall of the maxillary sinus than the linear tomogram.

  8. Differentiation of extranodal non-Hodgkins lymphoma from squamous cell carcinoma of the maxillary sinus: a multimodality imaging approach

    OpenAIRE

    Kato, Hiroki; Kanematsu, Masayuki; Watanabe, Haruo; Kawaguchi, Shimpei; Mizuta, Keisuke; Aoki, Mitsuhiro

    2015-01-01

    This study aimed to assess the efficacy of a multimodality imaging approach for differentiating between primary extranodal non-Hodgkin’s lymphoma (NHL) and squamous cell carcinoma (SCC) of the maxillary sinus. Twelve NHLs and 29 SCCs of the maxillary sinus were included. CT findings, MR signal intensities, apparent diffusion coefficients (ADCs), and maximum standardized uptake values (SUVmax) were correlated with two pathologies. On CT, permeative growth frequency was greater among NHLs than ...

  9. A comparison of Scanora radiography with Waters' and panoramic views for the detection of mucosal thickening of maxillary sinus

    International Nuclear Information System (INIS)

    The purpose of this study was to compare the diagnostic performance of Waters' and panoramic view; maxillary sinus posteroanterior and lateral scanography of Scanora for mucosal thickening of maxillary sinus as well as to identify the utility of Scanora for the detection of maxillary sinus disease. The assessment was done at 66 maxillary sinuses in 45 patients and the results were as follows: 1. Estimation of presence or absence of mucosal thickening. The sensitivity, specificity, and positive and negative predictive value of maxillary sinus posteroanterior and lateral scanography were 0.865, 0.860, 0.921, and 0.805 respectively and slightly higher than those of Waters' and panoramic views, which were 0.832, 0.835, 0.903, and 0.728 respectively. However, paired t-test showed no significant differences in the diagnostic performance of the two pairs of imaging modalities. 2. Estimation of the types of mucosal thickening. The diagnostic accuracy for type I, II, III was 75.3% on Waters' and panoramic view; 77.9% on maxillary sinus posteroanterior and lateral scanography. It was higher on the latter, but showed no significant differences from that on the former. 3. Reliability of interpretation. In intraobserver and interobserver agreement, both overall rates of agreement and kappa-value were slightly higher on maxillary sinus posteroanterior and lateral scanography than on Waters' and panoramic views. There was no significant differences between the two pairs of imaging modalities. These results suggested that scanogram is a useful diagnostic radiography as well as Waters' and panoramic view for detection of maxillary sinusitis.

  10. MIGRATION OF DENTAL IMPLANTS INTO MAXILLARY SINUS DURING THE HEALING PERIOD DUE TO WRONG INDICATION: REPORT OF 2 CASES

    OpenAIRE

    ÜNGÖR, Cem; Atasoy, Kerem Turgut; ?enel, Figen Çizmeci

    2015-01-01

    Displacement of dental implants into the maxillary sinus and related anatomic structures is a rare, but increasingly reported complication. Diagnosis of the affected structures related with maxillary sinus and determining the exact position of the dental implant are essential before the removal procedure of the migrated dental implant. After a clinical and radiological examination, an indicated procedure for every case should be decided. In this presented clinical case reports, migrated denta...

  11. Ewing’s sarcoma family of tumors of the maxillary sinus: a case report of multidisciplinary examination enabling prompt diagnosis

    OpenAIRE

    Tajima, Shogo; Ohkubo, Aki; Yoshida, Matsumi; Koda, Kenji; Nameki, Ichirota

    2015-01-01

    There have been approximately 10 reports in English literature of cases of Ewing’s sarcoma family of tumors (EFT) arising in the maxillary sinus. In this location, some tumors mimic EFT, and are more frequently encountered. Herein, we present an additional case of an EFT originating in the maxillary sinus. The patient was a 15-year-old boy complaining of a non-tender swelling of the left cheek. Laboratory tests showed no abnormalities. Computed tomography and magnetic resonance imaging reveal...

  12. Radiographic evaluations of the various lesions of maxillary sinus, inferior wall of sinus and surrounding structures using reformatted computed tomography

    International Nuclear Information System (INIS)

    To evaluate the degree of accuracy of DentaScan reformatted images of the maxillary sinus and periapical, periodontal lesions and to clarify the usefulness of the reconstructed 3-dimensional images to the dental clinical aspects. 33 sides of maxillae of the hemi-sectioned Korean heads were used in this study. Periapical radiographs, computed tomography and DentaScan reformatted cross-sectional images were taken for the radiographic evaluation of the peiapical and peiodontal lesions of the maxillary teeth and inferior wall of maxillary sinus. Compared the degree of accuracy and findings of dental and periapical pathoses on the intraoral radiographs and DentaScan reformatted images with the cross-sectioned specimens, the DentaScan reformatted cross-sectional images were more accurate and more effective than the intraoral radiography with a viewpoint of the detection of dental and periapical pathoses. Comparing the lesions of specimens with intraoral radiographies and DentaScan reformatted images, the dental and periodontal pathoses and topographical structures were more clearly observed in the DentaScan reformatted images, providing the possibility of more applications of reformatted images to clinical dentistry.

  13. Sinusitis maxilar iatrogénica tras la colocación de implantes: A propósito de un caso / Iatrogenic maxillary sinusitis related to implant placement: A case report

    Scientific Electronic Library Online (English)

    M., Bragado Novel; L., Berini Aytés; C., Gay Escoda.

    2010-12-01

    Full Text Available La perforación del suelo del seno maxilar y de las fosas nasales durante la colocación de implantes en las crestas alveolares situadas por debajo no es un hecho infrecuente. Pequeñas comunicaciones producidas durante el fresado para la preparación del lecho implantario cierran espontáneamente, pero [...] es un requisito indispensable para evitar futuras complicaciones que el implante quede estable, si no deberá ser retirado. Presentamos el caso de una mujer de 54 años de edad que acude refiriendo cacosmia y halitosis permanentes y episodios esporádicos de dolor en la zona infraorbitaria derecha asociados a rinorrea purulenta, que no ceden a la administración de distintos antibióticos. Las pruebas radiológicas muestran tres implantes dentales en el primer cuadrante sustituyendo a 1.2, 1.3 y 1.6: el primero perforando la fosa nasal, y el tercero con el extremo apical en el interior del seno maxilar derecho con una imagen radioopaca bien delimitada asociada. Confirmada la existencia de una comunicación bucosinusal de más de dos años de evolución, y establecida esta como la causa del cuadro de sinusitis maxilar crónica que la paciente padece, se determina como plan de tratamiento la extracción de los tres implantes y la reconstrucción del plano óseo mediante un injerto de hueso autólogo de mentón. Al retirar el implante en posición 1.6 se observa material de aspecto resinoso adherido a toda su superficie, con fines probablemente retentivos, y que habrá contribuido en gran medida a incrementar el proceso irritativo local. El defecto remanente es tan importante en este sector que se hace imposible anclar un injerto óseo en este área, por lo que se legra la mucosa sinusal enferma a su través, enviando muestra para su posterior análisis anatomopatológico, y se consigue el cierre primario mediante un injerto pediculado de la bola adiposa de Bichat. Los controles postoperatorios fueron favorables consiguiendo de esta forma la remisión total de la sintomatología y la recuperación completa. Abstract in english Perforation of the floor of the maxillary sinus or nasal cavity during implant placement in the residual bone located below is not an infrequent situation. It's been strongly reported that slight membrane puncture while preparing implant bed does not play a significant role in clinical outcome, as i [...] t heals spontaneously, but it is an essential requirement that the implant remains intraoperatory stable. We present the case of a 54 yr. old woman that consulted in our office referring permanent cacosmia and halitosis associated to sporadic episodes of pain and purulent rhinorrhea, that didn't ease to the administration of several different antibiotics. Radiological findings show three dental implants in the first quadrant replacing teeth 1.2, 1.3 and 1.6: first one piercing the nostril and the third one with its apical end completely into the right maxillary sinus with a delimitated radiopaque mass associated. Once confirmed the existency of an oroantral fistula and its involvement in the two-year evolution chronic sinusitis diagnosed, the treatment established included the extraction of the three implants and the simultaneous osseous reconstruction with an autologous bone chin graft. After the removal of implant 1.6, a composite resin-like material is found stuck to its surface with supposedly retentive purposes, contributing in this way in a very strong way to increase irritation. Remanent defect is so important that makes impossible bone grafting in this area, so we proceed to curette harmed sinusal mucosa, sending a sample for histological evaluation, and close with a Bichat fat pad pedicled flap. Postoperatory follow-up and evolution was favourable, achieving total remission of sympthomatology and complete recovery.

  14. A case of radiation retinopathy following radiation for maxillary sinus carcinoma

    Energy Technology Data Exchange (ETDEWEB)

    Taoka, Kaori; Arima, Mika; Uji, Yukitaka [Mie Univ., Tsu (Japan). School of Medicine; Miyamura, Naotaka

    1996-07-01

    A 69-year-old male was treated by Linac irradiation totalling 50 Gy for carcinoma of the right maxillary sinus. After 27 months, his right eye developed severe radiation retinopathy with papilledema, retinal hemorrhages and soft exudates. Fluorescein angiography showed occlusion of inferior nasal retinal artery. He was treated by panretinal photocoagulation and systemic corticosteroid. Vitreous hemorrhage developed followed by neovascular glaucoma 6 months later. (author)

  15. Squamous cell carcinoma of the maxillary sinus: A Tata Memorial Hospital experience

    Directory of Open Access Journals (Sweden)

    Qureshi Sajid

    2006-01-01

    Full Text Available Background: The optimal treatment of maxillary sinus carcinoma remains to be defined and there is a paucity of Indian studies on the subject. Aims: To present experience of management of squamous cell carcinoma of the maxillary sinus treated with curative intent at a single institution. Settings and Design:Retrospective study of patients with squamous cell carcinoma of the maxillary sinus who presented between 1994 to 1999. materials and Methods:The records of 73 patients with squamous cell carcinoma of the maxillary sinus were analyzed. Sixty-two patients were evaluable. Forty patients (65% were treated with surgery followed by postoperative radiotherapy, five patients (8% were treated with radiotherapy alone, five patients (8% were treated with surgery alone; 12 patients (19% received chemotherapy. Statistical analysis used: Statistical analysis was done using Kaplan-Meier method. Results: The majority of patients presented with locally advanced disease (52, 84%; nodal involvement was observed in five patients (8%. The most common site of recurrence was at the primary site, which was observed in 28 patients (45% and regional failures occurred in 10 (16%. The 3 and 5-year overall survival was 38% and 35% and the disease free survival was 29% and 26% respectively. The 5-year overall survival after surgery and postoperative radiotherapy was 42%. Conclusions:The majority of patients present with advanced disease resulting in poor outcomes to conventional treatment modalities. Locoregional tumor progression remains a significant pattern of failure. New approaches such as neoadjuvant or concomitant chemoradiotherapy with aggressive surgery need to be considered and evaluated in prospective studies.

  16. Primary orbital Ewing's sarcoma presenting with local recurrence to maxillary sinus shortly after tumor resection

    OpenAIRE

    Sendul, Selam Yekta; Ucgul, Cemile; Kabukcuoglu, Fevziye; Dirim, Burcu; Guven, Dilek

    2015-01-01

    Ewing's sarcoma (ES) is a malignant, small-round-cell neoplasm that normally affects the long bones of the limbs or the pelvis. Primary orbital ES of the skull has been considered extremely rare. We describe the case of a 19-year-old female patient with primary ES originating from the inferior orbital rime and, shortly after tumor resection, local recurrence to the maxillary sinus.

  17. A case of radiation retinopathy following radiation for maxillary sinus carcinoma

    International Nuclear Information System (INIS)

    A 69-year-old male was treated by Linac irradiation totalling 50 Gy for carcinoma of the right maxillary sinus. After 27 months, his right eye developed severe radiation retinopathy with papilledema, retinal hemorrhages and soft exudates. Fluorescein angiography showed occlusion of inferior nasal retinal artery. He was treated by panretinal photocoagulation and systemic corticosteroid. Vitreous hemorrhage developed followed by neovascular glaucoma 6 months later. (author)

  18. Correlation of fractal dimension with histomorphometry in maxillary sinus lifting using autogenous bone graft

    DEFF Research Database (Denmark)

    Molon, Rafael Scaf de; Paula, Wagner Nunes de

    2015-01-01

    The aim of this study was to determine the pattern of bone remodeling after maxillary sinus lifting in humans by means of fractal dimension (FD) and histomorphometric analysis. Therefore, the correlation between FD and the histomorphometric findings was evaluated. Sixteen patients with posterior edentulous maxilla were enrolled in this study. Maxillary sinus lifting was performed using autogenous bone grafted from the mandibular retromolar area. Three direct digital panoramic radiographs were obtained: before surgery (Group 1), immediately postoperatively (Group 2) and after 6 months of healing (Group 3) for FD analysis. Biopsies were taken after 6 months, processed and submitted to histological and histomorphometric analysis. Data were analyzed by Shapiro-Wilk test and ANOVA test followed by a Tukey test (a=0.05). The bone volume fraction of newly trabecular bone (TB) and medullary area (MA) was measured as 62.75%±17.16% and 37.25±17.16%, respectively. Significant difference in FD analysis was measured between Group 1 and Group 3. No significant difference was found in the correlation between FD and histomorphometric analysis for TB and MA (p=0.84). In conclusion, all performed analyses were effective in assessing the bone-remodeling pattern in the maxillary sinus, offering complementary information about healing and predictable outcomes. There were no correlations between FD and histomorphometric analysis.

  19. Maxillary Sinus Inflammatory Myofibroblastic Tumors: A Review and Case Report

    OpenAIRE

    Hansen, Chase C.; Eisenbach, Colby; Torres, Carlos; Graham, Suzanne; Hardwicke, Fred

    2015-01-01

    An inflammatory myofibroblastic tumor (IMT) is an immunohistochemically diverse entity demonstrating neoplastic and nonneoplastic qualities. Although IMTs can arise in any area of the body, lesions arising in certain sites, namely, the nasal cavity, paranasal sinuses, and pterygopalatine fossa, demonstrate a heightened neoplastic and invasive potential. Despite case specific complete tumor regression and disease remission in response to pharmacotherapeutics, a subset of IMTs remain resistant ...

  20. Research on a method of embedding implants into crista and apophysis of sinus maxillaris

    Directory of Open Access Journals (Sweden)

    Zhen-yu SUN

    2011-09-01

    Full Text Available Objective To study and evaluate the method of embedding implants into crista and apophysis of sinus maxillaris precisely and safely.Methods Eight patients with insufficient alveolar bone height in the posterior maxillary region,including 5 males and 3 females with mean age of 46.4±12.8 years,received dental implant surgery.By using CT scan based on 3D reconstruction analysis,each patient was chosen in accordance with the following criteria: sinus septa and apophysis located over the lost teeth,the width at the base of the septum and apophysis was over 5mm and the included angle between sinus floor and mesial or distal slope of the septum and apophysis was less than 70°.A simulation operation was done on each patient’s rapid prototyping model and apical part of implants was set into sinus septum and apophysis.After surgical guide was fabricated,osteotomy preparation and implant placement were performed aided by the surgical guide,and then followed by immediate CT scan to thoroughly examine the relative position of implants to septum and apophysis and the integrity of the sinus membrane.Results The position of all the 8 implants was in consistent with that in the rapid prototyped model.Sinus floor was lifted to the mesial or distal surface of the septum or apophysis.One side of the implants’ apical parts,with the length ranged from 2 to 5mm,was tightly embedded to sinus septum or apophysis,and the other side of the implants was well covered by mucous membrane.The implants were found with good stability after the surgery.No damage or laceration of the sinus mucous membrane was observed.Conclusions Sinus septa and apophysis can provide the necessary height to maintain implant stability when the alveolar bone height is insufficient for the insertion of a dental implant in the posterior region.In order to precisely embed implants into sinus septum and apophysis,the following procedures are required and must strictly coordinate with one another: accurate positioning and measurement of septa and apophysis by using CT 3-dimensional reconstruction analysis and model surgery,guide aided implant placement surgery,and the use of Sinustech reamer to lift sinus floor.

  1. Expresión de óxido nítrico sintetasa en mucosa sinusal de pacientes portadores de sinusitis crónica versus controles / Expression of nitric oxide synthase in sinus mucosa of chronic sinusitis patients vs controls

    Scientific Electronic Library Online (English)

    Carla, Napolitano V; Claudia, González G; Carlos, Céspedes F; Ximena, Fonseca A; Carlos, Vio L.

    2007-08-01

    Full Text Available Introducción: El óxido nítrico producido en las cavidades paranasales juega un importante rol en la fisiología nasal ya que aumenta la frecuencia del batido ciliar, optimiza el barrido mucociliary tiene un efecto bacteriostático y virustático. Diversos estudios muestran que el óxido nítrico nasal ex [...] halado en pacientes con rinosinusitis crónica es significativamente más bajo que en sujetos sanos. Esto podría estar determinado por una alteración en la difusión del óxido nítrico a través de los ostia de drenaje obstruidos o por una menor producción de óxido nítrico por parte de los portadores de rinosinusitis crónica. En este último caso, esto podría corresponder al evento primario en la etiopatogenia de la rinosinusitis crónica. Objetivos: Estudiar y comparar cualitativamente con técnica de inmunohisto-química la expresión de las isoformas e-NOS e I-NOS de la óxido nítrico sintetasa en mucosa sinusal de pacientes con rinosinusitis crónica y pacientes controles, sin patología rinosinusal infecciosa o alérgica. Material y método: Para responder a esta interrogante se realizó un estudio comparativo de casos y controles, con el objetivo de cuantificar con técnica de inmunohistoquímica la expresión de las isoformas endotelial e inducible de la óxido nítrico sintetasa en mucosa sinusal de pacientes con rinosinusitis crónica y pacientes controles sin patología rinosinusal infecciosa o alérgica. Resultados: Ingresan al estudio un total de 11 pacientes. Seis de ellos son el grupo control y 5 con sinusitis crónica. Ambos grupos presentan resultados similares. Conclusión: Los resultados no muestran ninguna diferencia en la expresión de óxido nítrico sintetasa, tanto en su isoforma endotelial como inducible, en la mucosa sinusal de pacientes portadores de rinosinusitis crónica comparado con sujetos sanos Abstract in english Introduction. Nitric oxide produced in the paranasal sinuses plays an important role in nasal physiology because it increases ciliary beat frequency, improves mucociliary clearance and has a bacteriostatic and virustatic effect. Several studies have shown that exhaled nasal nitric oxide was substant [...] ially lower in chronic sinusitis patients, compared to healthy subjects. This could be determined by altered nitric oxide diffusion through obstructed drainage ostia, or by chronic sinusitis patients having lower nitric oxide production. Aims. To qualitatively compare by immunocytochemistry the expression of the iNOS and eNOS isoforms of nitric oxide synthase in the sinus mucosa of chronic sinusitis patients and control subjects. Materials and methods. A case-control comparative study was carried out in order to compare by immunocytochemistry the expression of inducible and epithelial isoforms of nitric oxide synthase in nasal mucosa of chronic sinusitis patients and control subjects, with no infectious or allergic rhinosinusal pathology. Results. The results show no difference in the expression of the inducible or epithelial isoform of nitric oxide synthase in the nasal mucosa of chronic sinusitis patients as compared to healthy subjects

  2. Three Cases of Organized Hematoma of the Maxillary Sinus: Clinical Features and Immunohistological Studies for Vascular Endothelial Growth Factor and Vascular Endothelial Growth Factor Receptor 2 Expressions

    OpenAIRE

    Imayoshi, Shoichiro; KANAZAWA, TAKEHARU; Fukushima, Noriyoshi; Kikuchi, Hisashi; Hasegawa, Masayo; Nagatomo, Takafumi; Nishino, Hiroshi

    2015-01-01

    Objectives. Organized hematoma (OH) is a rare, nonneoplastic, hemorrhagic lesion causing mucosal swelling and bone thinning, mainly in the maxillary sinus. We aimed to clarify the clinical presentation and treatment of OH. Methods. Three cases of maxillary sinus OH and a literature review are presented. Results. Three men aged 16–40 years complained of nasal obstruction, frequent epistaxis, and/or headache. Clinical and radiological examinations revealed a maxillary sinus OH. They were cured ...

  3. Simultaneous maxillary sinus lifting and implant placement with autogenous parietal bone graft: outcome of 17 cases.

    Science.gov (United States)

    Sakka, Salah; Krenkel, Christian

    2011-04-01

    The aim of this study was to retrospectively evaluate the surgical technique of sinus floor elevation with autogenous parietal bone grafting in conjunction with immediate dental implants for the reconstruction of the maxilla in deficient maxillary alveolar ridges. Seventeen patients who underwent sinus floor elevation with bone graft from the parietal bone between 2005 and 2007 were included in the study. Cases of extremely deficient bone level in the alveolar ridgeAnkylos®) with different length and diameter were placed immediately after the graft was placed. Strict oral hygiene was required for the patients. Presurgical and postsurgical panoramic radiographs were taken. A high-quality reconstruction with an increase in lifted sinus bone height was achieved with parietal bone particulates. Seventy-three implants were clinically osseointegrated and four implants were lost giving a success rate 94.8%. No correlation was found between failure and the surgery. The encouraging results of this study suggest that the technique of reconstruction of the sinus floor and the resorbed alveolar ridge using an autogenous parietal bone graft is reliable, giving the surgeon the opportunity to successfully perform immediate implant placement in more difficult and deficient maxillary alveolar bone height. PMID:20833553

  4. Features of morphological variants of squamous cell carcinoma of the maxillary sinus: immunohistochemical characteristic

    Directory of Open Access Journals (Sweden)

    Kovtunenko A.V.

    2014-09-01

    Full Text Available Background. The feature of malignant tumours in maxillary sinus is a late appeal of patients (T3-T4, as a result of the absence of pain and minor clinical manifestations, it requires large amounts of surgical interventions and leads to disability. Objective. The article analyzes the morphological variants of maxillary sinus squamous cell carcinoma (SCC with their immunohistochemical characteristic. Methods. In the study we analyzed the original biopsy material from 37 patients with maxillary sinus cancer T3-4N0-1M0 (31 men and 6 women aged from 37 to 71 years with histologically confirmed diagnosis of SCC for 2010-2014. The primary monoclonal antibodies CK HMW (clone AE3, p63 (clone 4A4, ?16INK4 (clone DCS 240 were used. Results. Analyzing the distribution of various forms of maxillary sinus SCC, it was found that the typical forms of SCC are found in most of cases, 29 of 37 (78.4%, compared with specific morphological forms that accounted for just 21.6%. Conclusions. Due to the expression of the marker CK HMW it was found that in typical forms of SCC and in some special morphological forms (spindle cell carcinoma and verrucous carcinoma with decreasing degree of squamous cell differentiation, the level of the expression of CK HMW also decreases (p<0,001, r = 0.861; p <0,001, r = 0,638. It is an indicator of poor prognosis, but aggressive behavior of basaloid SCC and adenosquamous carcinoma do not depend on the presence or absence of CK HMW. High expression of marker p63 (average level 92,5±3,67% is a key-point of verification of basaloid SCC. Lack of positive reaction with the marker of viral lesions p16INK4 in forms with keratinization confirms the idea of different etiologic factors and ways of carcinogenesis of typical forms of SCC. Citation: Kovtunenko AV, Bakaev AA, Shpon’ka IS, Poslavskaya AV. [Features of morphological variants of squamous cell carcinoma of the maxillary sinus: immunohistochemical characteristic]. Morphologia. 2014;8(3:27-34. Ukrainian.

  5. The Prevalence of Concha Bullosa and Nasal Septal Deviation and Their Relationship to Maxillary Sinusitis by Volumetric Tomography

    Directory of Open Access Journals (Sweden)

    Kyle D. Smith

    2010-01-01

    Full Text Available The objective of this study was to determine the prevalence of concha bullosa and nasal septal deviation and their potential relationships to maxillary sinusitis. 883 CT scans taken at Creighton University School of Dentistry from 2005 to 2008 were retrospectively reviewed for the presence of concha bullosa, nasal septal deviation, and maxillary sinusitis. 67.5% of patients exhibited pneumatization of at least one concha, 19.4% of patients had a deviated septum, and 50.0% had mucosal thickening consistent with maxillary sinusitis. 49.3% of patients who had concha bullosa also had evidence of maxillary sinusitis. Only 19.5% of patients with concha bullosa also had nasal septal deviation, whereas 19.7% of patients with sinusitis also presented with nasal septal deviation. Although concha bullosa is a common occurrence in the nasal cavity, there did not appear to be a statistically significant relationship between the presence of concha bullosa or nasal septal deviation and maxillary sinusitis.

  6. A radiographic study on the mucosal cyst of the maxillary sinus

    International Nuclear Information System (INIS)

    This study was performed to evaluate the role Waters' view and panoramic view for the interpretation of mucosal cyst of the maxillary sinus and to determine the radiographic features of that according to the sites and sizes. For this study, clinically 25 cases of mucosal cyst of the maxillary sinus were used, and experimentally with who dry skulls, rubber ball of 15 mm in diameter for marked radiopacity, and two jelly balls of 8 and 20 mm in diameter for the similar radiopacity to cyst were used. The 25 cases with 25 panoramic views and 15 Waters' views were first analyzed, and secondly, the radiographic features of artificial lesions attached to the each wall of the antrum on Waters' view and panoramic view were analyzed. The obtained results were as follows: At clinical analysis, 1. 4 cases of 13-14 mm, 4 cases of 15-19 mm, 14 cases of 20-25 mm, 3 cases of over 30 mm in diameter were found on panoramic views. And 24 cases of 25 cases showed no relationship with teeth, and only 1 case was associated with advanced periodontal disease. 2. The majority of mucosal cysts appeared to arise the posterior portion of the floor of the sinus and were superimposed with the inominate line of zygoma and the horizontally linear image of hard palate on panoramic view. 3. Only 2 cases of 15 cases were identified on both films.At experimental analysis, 4. On Waters' view, the images of the artificial lesion of the anterior portion and midportion of the floor of the sinus were lessened in diameter compared with the real size. On panoramic views, the images of the lesion were more radiolucent with lessened diameter than images on Waters' view. 5. The images of the lesion of the posterior wall and the posterior portion of the floor of sinus on panoramic view were well detected by the preedjucated group but not or poorly detected by the non-preeducated observer group. 6. On Waters' view, both observer groups recognized that the cystic images of the posterior portion of the floor of the maxillary sinus were superimposed with the petrous portion of the skull.

  7. A radiographic study on the mucosal cyst of the maxillary sinus

    Energy Technology Data Exchange (ETDEWEB)

    Park, Eun Chun; Kim, Jae Duck [Dept. of Oral Radiology, College of Dentistry, Chosun University, Kwangju (Korea, Republic of)

    1993-08-15

    This study was performed to evaluate the role Waters' view and panoramic view for the interpretation of mucosal cyst of the maxillary sinus and to determine the radiographic features of that according to the sites and sizes. For this study, clinically 25 cases of mucosal cyst of the maxillary sinus were used, and experimentally with who dry skulls, rubber ball of 15 mm in diameter for marked radiopacity, and two jelly balls of 8 and 20 mm in diameter for the similar radiopacity to cyst were used. The 25 cases with 25 panoramic views and 15 Waters' views were first analyzed, and secondly, the radiographic features of artificial lesions attached to the each wall of the antrum on Waters' view and panoramic view were analyzed. The obtained results were as follows: At clinical analysis, 1. 4 cases of 13-14 mm, 4 cases of 15-19 mm, 14 cases of 20-25 mm, 3 cases of over 30 mm in diameter were found on panoramic views. And 24 cases of 25 cases showed no relationship with teeth, and only 1 case was associated with advanced periodontal disease. 2. The majority of mucosal cysts appeared to arise the posterior portion of the floor of the sinus and were superimposed with the inominate line of zygoma and the horizontally linear image of hard palate on panoramic view. 3. Only 2 cases of 15 cases were identified on both films.At experimental analysis, 4. On Waters' view, the images of the artificial lesion of the anterior portion and midportion of the floor of the sinus were lessened in diameter compared with the real size. On panoramic views, the images of the lesion were more radiolucent with lessened diameter than images on Waters' view. 5. The images of the lesion of the posterior wall and the posterior portion of the floor of sinus on panoramic view were well detected by the preedjucated group but not or poorly detected by the non-preeducated observer group. 6. On Waters' view, both observer groups recognized that the cystic images of the posterior portion of the floor of the maxillary sinus were superimposed with the petrous portion of the skull.

  8. Metastasis of hepatocellular carcinoma presented as a tumor of the maxillary sinus and retrobulbar tumor

    Directory of Open Access Journals (Sweden)

    Kolarevi? Daniela

    2011-01-01

    Full Text Available Introduction. Hepatocellular carcinoma (HCC is the most frequent primary malignant tumor of the liver. It is usually seen in the 6th and 7th decades of life and chronic hepatitis B is the most frequent cause. Extrahepatic metastasis of HCC is an indicator of a poor prognosis and the most common sites are lungs, bones, lymph nodes, kidneys and adrenal glands. We reported a case of isolated metastasis in the right maxilla, which had been found initially, before the tumor in the liver was diagnosed. Case report. A 70-year-old man underwent dental surgery of the upper right molar. Prolonged bleeding control was difficult for up to two weeks, so the biopsy was performed. Histopathological analysis revealed a metastatic hepatocellular carcinoma. Computerized tomography (CT of the abdomen revealed a diffusely heterogeneous liver parenchyma with irregular borders and two foci of mass lesions. There were metastasis in the spleen and also two pathological retroperitoneal lymph nodes were detected, but no ascit, liver cirrhosis, cholestasis or portal vein thrombosis were seen. CT of the orbital and maxillary regions revealed a tumor mass in the right maxillary sinus, spreading to the alveolar sinus, nasal cavity and partially infratemporal space. A tumor mass was in the right orbit as well, infiltrating the surrounding bones and muscles. Clinically, there was proptosis of the right eye accompanied by amaurosis. The treatment started with chemotherapy based on 5-fluorouracil (sorafenib was not available. After three cycles, control CTs showed a stable disease in the liver, but progression in the right maxillary sinus and orbit. Enucleation of the right eye was performed and postoperative radiotherapy was planed. The patient deteriorated rapidly and died, about 6 months after the disease had been diagnosed. Conclusion. Extrahepatic metastasis of HCC represents a progressive phase of the disease with poor prognosis, so the main aim of the treatment should be palliation and care of symptoms.

  9. Ewing's sarcoma family of tumors of the maxillary sinus: a case report of multidisciplinary examination enabling prompt diagnosis.

    Science.gov (United States)

    Tajima, Shogo; Ohkubo, Aki; Yoshida, Matsumi; Koda, Kenji; Nameki, Ichirota

    2015-01-01

    There have been approximately 10 reports in English literature of cases of Ewing's sarcoma family of tumors (EFT) arising in the maxillary sinus. In this location, some tumors mimic EFT, and are more frequently encountered. Herein, we present an additional case of an EFT originating in the maxillary sinus. The patient was a 15-year-old boy complaining of a non-tender swelling of the left cheek. Laboratory tests showed no abnormalities. Computed tomography and magnetic resonance imaging revealed a mass centered in the maxillary sinus with degeneration of the surrounding bones. Pathological examination along with flow cytometry and G-banding enabled the prompt diagnosis of EFT with the EWS/FLI1 fusion gene. The patient is planned to undergo chemotherapy. An origin in the head and neck and the presence of the typical EWS/FLI1, in conjunction with an opportunity for immediate treatment, may predict a relatively better prognosis for EFT in our case. PMID:25755803

  10. A radiologic study on the experimental lesions of the maxillary sinus

    International Nuclear Information System (INIS)

    This study was performed to determine the each location of lesions in the maxillary sinus and to evaluate the relationship between the floor of the antrum and the apical regions of teeth by the comparison of the panoramic view and panoramic sinus view. For this study, experimentally with two dry skulls, jelly balls of 8 mm and 15 mm in diameter containing a short wire for the radiopacity similar to the cyst and clinically 5 patients having mucosal cyst in the antrum and 10 patients having periapical lesions of upper molars were formed by using round bur and the radiopaque periapical lesions were simulated by filling the former lesions with lead foil. Each panoramic view and each panoramic sinus view of the experimental lesions and patients were obtained by using panoramic machine and analyzed. The following results obtained; 1. On the panoramic sinus view, the innominate line was approximately coincided with the most lateral portion of the antrum and the posterior wall appeared as the narrow area at the mesial side of the innominate line. The anterior wall occupied totally the mesial side of the innominate line, and the medial wall occupied the mesial half of the antrum. 2. In all cases of experimental cystic lesion attached to each wall of the antrum, the location of each lesion was able to be determined by applying Tube shift technic. 3. The palatal root and mesiobuccal root of the molar appeared as being transposed each other mesiolaterally on the panoramic and panoramic sinus views. 4. The panoramic sinus view was superior to the panoramic view in revealing the relationship between the floor of the antrum and the periapical lesion.

  11. Bilateral maxillary sinus floor augmentation with tissue-engineered autologous osteoblasts and demineralized freeze-dried bone

    Directory of Open Access Journals (Sweden)

    Aashish Deshmukh

    2015-01-01

    Full Text Available The pneumatization of the maxillary sinus often results in a lack of sufficient alveolar bone for implant placement. In the last decades, maxillary sinus lift has become a very popular procedure with predictable results. Sinus floor augmentation procedures are generally carried out using autologous bone grafts, bone substitutes, or composites of bone and bone substitutes. However, the inherent limitations associated with each of these, have directed the attention of investigators to new technologies like bone tissue engineering. Bone marrow stromal cells have been regarded as multi-potent cells residing in bone marrow. These cells can be harvested from a person, multiplied outside his body using bioengineering principles and technologies and later introduced into a tissue defect. We present a case where tissue-engineered autologous osteoblasts were used along with demineralized freeze-dried bone for sinus floor augmentation.

  12. Histological and Radiological Analyses of a Maxillary Sinus Lift with Extensive Drilling of the Schneider Membrane Using Xenogeneic Bone

    OpenAIRE

    Romano, Marcelo M.; Júlia A. Smanio; Ferreira, Lorraine B.; Victor E. Arana-Chavez; Mário S. Soares

    2014-01-01

    The objective of this study is to report a clinical case of maxillary sinus with lyophilized, xenogeneic graft, in which, despite a large perforation of the sinus membrane, the surgery was not aborted and the results of histological examinations indicate bone neoformation in the surgical area. Results. This case showed that the biomaterials evaluated in this study and the procedure used to place them proved to be biocompatible and presented high osteogenic potential, leading to a successful s...

  13. Septum en Seno Maxilar: Un Estudio de 91 Cirugías Consecutivas de Elevación de Piso Sinusal Septum on Maxillary Sinus: A Study in 91 Consecutive Surgeries of Maxillary Sinus Floor Elevation

    Directory of Open Access Journals (Sweden)

    Sergio Olate

    2011-12-01

    Full Text Available La elevación de piso sinusal maxilar ha sido ampliamente discutida y presenta altas tasas de éxito. El objetivo de esta investigación fue establecer la prevalencia de septum intrasinusal presente en cirugías consecutivas de elevación de piso sinusal y establecer su relación con las perforaciones de membrana sinusal. Noventa y un cirugías fueron realizadas en pacientes que presentaban indicación para instalar implantes dentales en maxila posterior; fueron incluidos aquellos pacientes que presentaron documentos clínicos íntegros (ficha clínica, radiografías, entre otros y que no presentasen contraindicación del procedimiento; las cirugías fueron realizadas con anestesia local o general y fueron rellenados con biomateriales o hueso autógeno. El septum fue identificado mediante la imagen panorámica preoperatoria y de forma clínica intraoperatoria, mientras que cualquier complicación fue estudiada y relacionada con la presencia de septum; el estudio estadístico se realizó a través de la prueba test de Fisher siendo reconocido el valor de pSinus lift has been widely studied and is highly successful. The aim of this research was to establish the prevalence of intrasinusal septum in consecutive surgeries for maxillary sinus floor elevation and identify the relation with sinus membrane rupture. Ninety one surgeries were realized in patients with an indication for dental implant installation in the posterior maxilla; the patient with complete clinical and medical record (card, radiography, etc. and without contraindications for the procedure was included in the study; the surgery was realized with local or general anesthesia and the material used for inlay graft was autogenous bone or biometarials. The septum was identified by panoramic image in the preoperatory and clinically at the time of surgery; any complication was studied and related to intrasinusal septum; the statistical study was carried out with Fisher test with p value <0.05. Surgery was performed on 72 subjects (53 female and 19 male with a mean age of 44.5 years of age; in 74.7% of patients no complications were observed, while 18.7% presented sinusal membrane rupture. The septum was observed in 18.7% (16 maxillary sinus, showing 12 septum in anterior position and 4 in posterior position; the presence of septum was positively related to membrane rupture (p<0.05. Finally, we can state that the intrasinusal septum was observed in 17% and was related to intraoperatory complications as membrane rupture.

  14. Frequency of Maxillary Sinus Mucous Retention Cysts in a Central Brazilian Population

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    Evanice Menezes Marçal Vieira

    2015-09-01

    Full Text Available Statement of the Problem: Mucous retention cysts (MRCs of the maxillary sinus are lesions with undefined pathogenesis. In recent researches, geographical and climatic aspects have been related as risk factors. Purpose: The purpose of this study was to determine the frequency of MRCs of the maxillary sinus using panoramic radiographs. Materials and Method: A total of 631 panoramic radiographs were selected from a secondary database from a private radiology clinic and analyzed by two specialists in dental radiology according to gender, age, month, relative air humidity, and mean temperature. Results: A total of 87 (6.89% radiographic images were suggestive of MRCs. Thirty-five MRCs (40.22% were detected on the right side, 10 (11.49% on the left side and 42 (48.29% on both sides. A high frequen-cy was detected in female participants (n=45; 51, 72%, those aged 18-35 years (n=31; 35, 63% and those from August (n=24; 27.59% and July (n=22; 25.29%. Conclusion: The frequency of MRCs was low, and no statistically significant correlation was found between the prevalence of MRCs and the studied variables with the exception of the mean temperature.

  15. Comparison of the Distances between the Maxillary Sinus Floor and Root-Tips of the First and Second Maxillary Molar Teeth Using Panoramic Radiography among Dolichocephalic and Brachycephalic and Mesocephalic Individuals

    Directory of Open Access Journals (Sweden)

    Hamidreza Arabion

    2015-06-01

    Full Text Available Introduction: Comparison of the relationships and distance between maxillary root tips and   the maxillary sinus floor using oral panoramic in the dolichocephalic and brachycephalic compared to mesocephalic individuals. Methods: Oral panoramic images from 300 individuals were analyzed and the relationships and distance between the maxillary root tips and the sinus floor was assessed by qualitative and quantitative variables. Results: The distance was significantly higher in the brachycephalic groups than that of the mesocephalic, and the mesocephalic group showed longer distance in comparison to dolichocephalic individuals. Qualitative comparison showed that type 1 relationship was the dominant position in the brachycephalic individuals while most of dolichocephalic individuals demonstrated type 2 and 3 relationships of the molar root tips and the maxillary sinus floor. Conclusion: Higher distances between the molar root tips and the maxillary sinus floor could be expected in the brachycephalic than mesocephalic and dolichocephalic individuals

  16. Clinical evaluation of multimodal treatment for squamous cell carcinoma of the maxillary sinus

    International Nuclear Information System (INIS)

    Seventy-seven patients with squamous cell carcinoma of the maxillary sinus were treated with radiotherapy and surgery (with or without intra-arterial infusion chemotherapy) from 1969 to 1986 at Tokyo Women's Medical College. The treatment given to the subjects was broadly separated into three categories: Treatment I (1969-1974), Treatment II (1975-1977), and Treatment III (1978-1986). Treatment I consisted of surgery and radiotherapy; Treatment II consisted of multimodal treatment by surgery and radiotherapy with 5-FU intra-arterial infusion chemotherapy (IAIC) from the superficial temporal artery; Treatment III consisted of surgery and radiotherapy with Adriamycin IAIC replacing 5-FU IAIC. Radiotherapy involved a total dose of 60 Gy/6 weeks in Treatment I as the standard, 50 Gy/5 weeks with 5-FU (250 mgx20 times/4 weeks) in Treatment III. Surgery by antrotomy was performed before radiotherapy and IAIC, and Denker's operation was done after radiotherapy with IAIC. The influence of patients' age, sex, T stage and N stage were examined as prognostic factors and no statistically significant differences were seen among each treatment periods. The 2-year control rate was 29% in period I, 27% in period II, and 58% in period III. The 5-year cumulative survival rate was 13% for period I, 40% for period II, and 54% for period III; the incidence of side effects during radiotherapy did not appear to increase, and the severity was at a tolerable level considering the results. However, late complications were seen in 6 cases (cataract, 5; obstinate sinusitis, 1). Thus, the study indicates that multimodal treatment using Adriamycin IAIC can minimize face deformity and allows effective function-saving treatment for carcinoma of the maxillary sinus. (author)

  17. Microbiologia dos seios maxilar e etmoidal em pacientes com rinossinusite crônica submetidos à cirurgia funcional endoscópica dos seios paranasais / Microbiology of the maxillary and ethmoid sinuses in patients with chronic rhinosinusitis submitted to functional endoscopic sinus surgery

    Scientific Electronic Library Online (English)

    Josiane Faria de Aguiar, Nigro; Carlos Eduardo Nazareth, Nigro; Silvio Antonio Monteiro, Marone; Richard Louis, Voegels.

    2006-04-01

    Full Text Available Estudos da microbiologia da rinossinusite crônica mostram a presença de microorganismos aeróbicos, anaeróbicos, fungos e vírus e sua incidência varia de acordo com cada estudo. Estes estudos nos guiam para a escolha do antimicrobiano mais adequado para eliminar o processo infeccioso, ajudando a rest [...] aurar a mucosa nasossinusal. FORMA DE ESTUDO: Clínico prospectivo. OBJETIVO: O objetivo deste trabalho foi estudar a microbiologia dos seios maxilar e/ou etmoidal de pacientes com rinossinusite crônica e com indicação de cirurgia funcional endoscópica dos seios paranasais. MATERIAIS E MÉTODOS: Durante a cirurgia coletamos, em 41 pacientes, secreção e/ou fragmento de mucosa dos seios maxilar e/ou etmoidal para realização de bacterioscopia, pesquisa direta de fungos, cultura para microorganismos aeróbios, anaeróbios e fungos. RESULTADOS: Identificou-se a presença de microorganismos aeróbios em 21 pacientes (51,2%), anaeróbios em 16 (39%) e fungos em 1 (2,4%). Na população estudada, apenas em 12 (29,2%) o microorganismo isolado foi considerado patogênico quando analisado junto à contagem semiquantitativa de leucócitos. O Staphylococcus coagulase-negativo e o Staphylococcus aureus foram os microorganismos mais freqüentes, em 5 (12,1%) e em 4 pacientes (9,75%) respectivamente. CONCLUSÃO: Este estudo revela que o Staphylococcus coagulase-negative e o Staphylococcus aureus foram os microorganismos mais freqüentes isolados nos pacientes com rinossinusite crônica. Abstract in english Chronic rhinosinusitis microbiology studies show the presence of aerobe and anaerobe microorganisms, fungus and virus and their incidence vary according to each study. These studies guide us on choosing the most adequate antimicrobial agent to eliminate the infectious process, thus, helping in resto [...] ring rhinosinusal mucosa. STUDY DESIGN: Clinical prospective. AIM: This work aimed at studying the microbiology of the maxillary and/or ethmoid sinuses of patients with chronic rhinosinusitis and with indication of functional endoscopic sinus surgery. MATERIALS AND METHODS: During surgery, we collected secretion and/or fragments of maxillary and/or ethmoid sinus mucosa from 41 patients to perform Gram stain, fungus direct research, aerobe and anaerobe microorganism culture and fungus culture. RESULTS: We identified the presence of aerobe microorganisms in 21 patients (51.2%), anaerobe microorganisms in 16 (39%) and fungus in 1 (2.4%). In the studied population, only 12 patients (29.2%) presented microorganisms considered pathogenic when analyzed together with the semi-quantitative leukocyte count. Staphylococcus coagulase-negative and Staphylococcus aureus were the most frequent microorganisms found, in 5 (12.18%) and in 4 (9.75%) patients respectively. CONCLUSION: This study reveals that Staphylococcus coagulase-negative and Staphylococcus aureus were the most frequent microorganisms isolated from patients with chronic rhinosinusitis.

  18. Physiology and pathophysiology of respiratory mucosa of the nose and the paranasal sinuses

    OpenAIRE

    Beule, Achim G.

    2011-01-01

    In this review, anatomy and physiology of the respiratory mucosa of nose and paranasal sinuses are summarized under the aspect of its clinical significance. Basics of endonasal cleaning including mucociliary clearance and nasal reflexes, as well as defence mechanisms are explained. Physiological wound healing, aspects of endonasal topical medical therapy and typical diagnostic procedures to evaluate the respiratory functions are presented. Finally, the pathophysiologies of different subtypes ...

  19. Comparative Study of Algipore and Decalcified Freeze - Dried Bone Allograft In Open Maxillary Sinus Elevation Using Piezo e lectric Surgery

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    Habibollah Ghanba

    2013-05-01

    Full Text Available Background and aim. Vertical and horizontal bone resorption of the alveolar ridge are common in edentul ous jaws. In the distal area of the maxilla, an adequate bone volume is often lacking because of the proximity of the sinus cavities to crestal bone. Sinus floor augmentation is an established way of increasing the height and volume of bone in the p osterior region of the maxilla, which increase the stability of dental implants. For this purpose various materials, including auto grafts, allograf ts,alloplasts, and xenografts have been used. The aim of this study was the radiographic and clinical comparison of Algipore with decalcified freeze-dried bone allograft (DFDBA inthe open maxillary sinus lift technique using piezoelectric instruments. Materials and methods. A total of 20 sinus grafts were performed in 10 patients who had a severely resorbed bilateral maxillary alveolar process with a residual bone thickness of between 1 and 5 mm (mean, 3.6 mm. The operation involved anosteotomy performed on the lateral maxillary wall using piezoelectric instruments, elevation of the sinus membrane, and placement of either of the two bone graft materials in each randomly-selected side. Preoperative and postoperative standard radiographs taken at nine months of follow- up were used to compare the outcome of bone height after the maxillary sinuslifting procedure. Changes in radiographic density after sinus grafting were evaluated using densitometry. Results. The radiographic density was 76.3% on the Algipore side and 72.4% on the DFDBA side (P >0.05. The mean height of newly formed bone in the augmented area was 12.3 mm on the Algipore side and 10.7 mm on the DFDBA side (P >0.05. Conclusion. After nine months there were no considerable clinical or radiological differences in outcome between Algipore and DFDBA and both of them were recognized as acceptable materials for sinus lift procedures

  20. Histological evaluation of maxillary sinus floor augmentation with recombinant human growth and differentiation factor-5-coated ?-tricalcium phosphate

    DEFF Research Database (Denmark)

    Stavropoulos, Andreas; Becker, Jürgen; Capsius, Björn; Açil, Yahya; Wagner, Wilfried; Terheyden, Hendrik

    2011-01-01

    The aim of this prospective, multicenter, randomized clinical trial was to evaluate histologically the outcome of maxillary sinus lift augmentation with a recombinant human growth and differentiation factor-5-coated ?-tricalcium phosphate (rhGDF-5/?-TCP) or with a ?-TCP and autogenous bone (?-TCP/AB) composite.

  1. Septum en Seno Maxilar: Un Estudio de 91 Cirugías Consecutivas de Elevación de Piso Sinusal / Septum on Maxillary Sinus: A Study in 91 Consecutive Surgeries of Maxillary Sinus Floor Elevation

    Scientific Electronic Library Online (English)

    Sergio, Olate; Leandro, Pozzer; Aníbal Henrique Barbosa, Luna; Marcio de, Moraes; Renato, Mazzonetto; Roger W. Fernandes, Moreira; Jose Ricardo de, Albergaria-Barbosa.

    2011-12-01

    Full Text Available La elevación de piso sinusal maxilar ha sido ampliamente discutida y presenta altas tasas de éxito. El objetivo de esta investigación fue establecer la prevalencia de septum intrasinusal presente en cirugías consecutivas de elevación de piso sinusal y establecer su relación con las perforaciones de [...] membrana sinusal. Noventa y un cirugías fueron realizadas en pacientes que presentaban indicación para instalar implantes dentales en maxila posterior; fueron incluidos aquellos pacientes que presentaron documentos clínicos íntegros (ficha clínica, radiografías, entre otros) y que no presentasen contraindicación del procedimiento; las cirugías fueron realizadas con anestesia local o general y fueron rellenados con biomateriales o hueso autógeno. El septum fue identificado mediante la imagen panorámica preoperatoria y de forma clínica intraoperatoria, mientras que cualquier complicación fue estudiada y relacionada con la presencia de septum; el estudio estadístico se realizó a través de la prueba test de Fisher siendo reconocido el valor de p Abstract in english Sinus lift has been widely studied and is highly successful. The aim of this research was to establish the prevalence of intrasinusal septum in consecutive surgeries for maxillary sinus floor elevation and identify the relation with sinus membrane rupture. Ninety one surgeries were realized in patie [...] nts with an indication for dental implant installation in the posterior maxilla; the patient with complete clinical and medical record (card, radiography, etc.) and without contraindications for the procedure was included in the study; the surgery was realized with local or general anesthesia and the material used for inlay graft was autogenous bone or biometarials. The septum was identified by panoramic image in the preoperatory and clinically at the time of surgery; any complication was studied and related to intrasinusal septum; the statistical study was carried out with Fisher test with p value

  2. Long-term prognosis of maxillary sinus malignant tumor patients treated by fast neutron radiation therapy

    International Nuclear Information System (INIS)

    From 1976 through 1990, 19 patients with maxillary sinus malignant tumor were treated with combination therapy consisting of maxillectomy and radiation of fast neutron. Fast neutron radiotherapy was performed at National Institute of Radiological Sciences. Eight patients had adenoid cystic carcinomas, three patients squamous cell carcinomas, one patient a carcinoma in pleomorphic adenoma, four patients fibrosarcomas, one patient osteosarcoma, one patient chondrosarcoma and one patient rhabdomyosarcoma. Fast neutron therapy after/before surgery was effective in fresh cases with T2-3N0M0 adenoid cystic carcinomas and sarcomas (except for fibrosarcoma). Nine patients were alive more than three years after treatment. And serious complications of fast neutron radiation therapy appeared in six of these nine patients. Visual impairment of opposite side occurred in four patients. Bone necrosis occured in one patient and brain dysfunction in one patient. (author)

  3. Bacteriological efficacy of 5-day therapy with telithromycin in acute maxillary sinusitis.

    Science.gov (United States)

    Buchanan, P; Roos, K; Tellier, G; Rangaraju, M; Leroy, B

    2005-03-01

    Increasing resistance among the key pathogens responsible for community-acquired respiratory tract infections, namely Streptococcus pneumoniae, Haemophilus influenzae and Moraxella catarrhalis, has the potential to limit the effectiveness of the antibacterial agents available to treat these infections. Moreover, there are regional differences in the susceptibility patterns observed and, as treatment is usually empirical, choosing an effective treatment can be challenging. Telithromycin, the first ketolide to be approved for clinical use, offers an activity profile that covers the key respiratory pathogens including penicillin- and macrolide-resistant S. pneumoniae as well as beta-lactamase-producing H. influenzae and M. catarrhalis. In a pooled analysis of three large controlled clinical trials involving patients with acute maxillary sinusitis, the bacteriological efficacy of 5- or 10-day treatment with telithromycin and 10-day treatment with comparators was evaluated. Telithromycin administered as a once-daily 800 mg dose for 5 days achieved eradication rates of 91.8, 87.5 and 92.9% for S. pneumoniae, H. influenzae and M. catarrhalis, respectively. Bacteriological eradication of 8/10 and 12/14 isolates of S. pneumoniae resistant to penicillin and erythromycin, respectively, was also reported following 5-day treatment with telithromycin. The clinical efficacy of this regimen was equivalent to that of a 10-day regimen of telithromycin or standard 10-day courses of amoxicillin-clavulanic acid or cefuroxime axetil. Telithromycin 800mg given for 5 days was well tolerated, with the majority of adverse events being of mild or moderate intensity. These data suggest that telithromycin provides effective first-line therapy for use in patients with acute maxillary sinusitis in a short and convenient once-daily dosage regimen. PMID:15737519

  4. Retrospective analysis of multidisciplinary therapy for locally advanced squamous cell carcinoma of the maxillary sinus

    International Nuclear Information System (INIS)

    The purpose of this study was to retrospectively investigate the efficacy of multidisciplinary therapy (concomitant radiotherapy and intra-arterial infusion of 5-fluorouracil (5-FU) followed by maxillectomy) in the treatment of squamous cell carcinoma of the maxillary sinus. We reviewed 71 patient records with locally advanced but respectable carcinoma of the maxillary sinus treated by means of multidisciplinary therapy between 1978 through 1997. The clinical T factor for these patients, according to the UICC definitions (1997), was 12 for T2, 46 for T3, and 13 for T4. Twelve patients were diagnosed as node-positive at initial presentation. Intra-arterial 5-FU was delivered via a superficial temporal artery in accordance with radiotherapy, and the cumulative 5-FU dose ranged from 2,900 mg to 5,250 mg (median 5,000 mg). The total radiotherapy dose ranged from 29 Gy to 48 Gy (median 48 Gy) with conventional fractionation. Patients underwent radical maxillectomy thereafter. The 5-year overall survival rate and disease-specific survival rate of all the patients were 58% and 68%, respectively. There was no significant correlation of clinical T factor or N factor with disease-specific survival on univariate and multivariate analysis. The overall treatment-related mortality rate was 3.7%. Radiation cataract later developed in all evaluable patients whose lenses were within the treatment volume. About a half of the operable T4 patients survived over 5 years by means of the above-mentioned multidisciplinary therapy. This multidisciplinary therapy should be compared to treatment with a combination of surgery and postoperative chemoradiotherapy. (author)

  5. Retrospective analysis of multidisciplinary therapy for locally advanced squamous cell carcinoma of the maxillary sinus

    Energy Technology Data Exchange (ETDEWEB)

    Yoshida, Hiroshi; Seo, Yuji; Nakajima, Kaori; Miyano, Takashi [Asahikawa Medical Univ., Hokkaido (Japan); Kikuchi, Yuzou [Kanazawa Univ. (Japan). School of Medicine

    2002-06-01

    The purpose of this study was to retrospectively investigate the efficacy of multidisciplinary therapy (concomitant radiotherapy and intra-arterial infusion of 5-fluorouracil (5-FU) followed by maxillectomy) in the treatment of squamous cell carcinoma of the maxillary sinus. We reviewed 71 patient records with locally advanced but respectable carcinoma of the maxillary sinus treated by means of multidisciplinary therapy between 1978 through 1997. The clinical T factor for these patients, according to the UICC definitions (1997), was 12 for T2, 46 for T3, and 13 for T4. Twelve patients were diagnosed as node-positive at initial presentation. Intra-arterial 5-FU was delivered via a superficial temporal artery in accordance with radiotherapy, and the cumulative 5-FU dose ranged from 2,900 mg to 5,250 mg (median 5,000 mg). The total radiotherapy dose ranged from 29 Gy to 48 Gy (median 48 Gy) with conventional fractionation. Patients underwent radical maxillectomy thereafter. The 5-year overall survival rate and disease-specific survival rate of all the patients were 58% and 68%, respectively. There was no significant correlation of clinical T factor or N factor with disease-specific survival on univariate and multivariate analysis. The overall treatment-related mortality rate was 3.7%. Radiation cataract later developed in all evaluable patients whose lenses were within the treatment volume. About a half of the operable T4 patients survived over 5 years by means of the above-mentioned multidisciplinary therapy. This multidisciplinary therapy should be compared to treatment with a combination of surgery and postoperative chemoradiotherapy. (author)

  6. Contribution of the maxillary sinus to the modularity and variability of nasal cavity shape in Japanese macaques.

    Science.gov (United States)

    Ito, Tsuyoshi; Nishimura, Takeshi D; Hamada, Yuzuru; Takai, Masanaru

    2015-01-01

    The nasal cavity is essential for conditioning of inspired air, and its form likely impacts its function. Since humans and other anthropoids have reduced nasal turbinates when compared to other mammals, variation in relative surface area is mainly brought about by changes to overall nasal architecture. Previous studies of modern humans suggest that variation in the transverse dimensions of the nasal cavity is likely possible because of the presence of the maxillary sinuses. To understand the evolutionary origin of this adaptation, we investigated the nasofacial skeleton of Japanese macaques (Macaca fuscata). We applied computed tomography and geometric morphometrics to test how the nasal cavity shape is correlated with relative maxillary sinus volume and to evaluate how the nasal cavity shape is integrated with the external craniofacial shape. Our results show that the decreasing sinus volume is well associated with the relative expansion of nasal cavity at the middle region compared to the anterior and posterior openings. The nasal cavity shape is not integrated with the external craniofacial shape especially at the middle region as well as the posterior opening. Thus, the maxillary sinus in macaques may contribute to the modularity and variability of the nasal cavity shape, possibly facilitating the adaptive changes in the nasal airways of this species. PMID:25099364

  7. Case Report: retained gutta-percha as a cause for persistent maxillary sinusitis and pain [v1; ref status: indexed, http://f1000r.es/34s

    OpenAIRE

    HODNETT, BENJAMIN L.; Berrylin Ferguson

    2014-01-01

    Dental sources of infection can produce acute and chronic maxillary sinusitis. In some cases, the source of the infection may be related to the presence of endodontic materials in the oral cavity. In this article, we report a case of retained gutta-percha in the maxillary sinus resulting in chronic sinusitis.

  8. Case Report: retained gutta-percha as a cause for persistent maxillary sinusitis and pain [v2; ref status: indexed, http://f1000r.es/3c6

    Directory of Open Access Journals (Sweden)

    Benjamin L. Hodnett

    2014-04-01

    Full Text Available Dental sources of infection can produce acute and chronic maxillary sinusitis. In some cases, the source of the infection may be related to the presence of endodontic materials in the oral cavity. In this article, we report a case of retained gutta-percha in the maxillary sinus resulting in chronic sinusitis.

  9. Primitive neuroectodermal tumor of the maxillary sinus in an elderly male: A case report and literature review

    Energy Technology Data Exchange (ETDEWEB)

    Shah, Saiquat [Dept. of Dental Public Health, Bangladesh Dental College, Dhaka (Bangladesh); Huh, Kyung Hoe; Yi, Won Jin; Heo, Min Suk; Lee, Sam Sun; Choi, Soon Chul [Dept. of Oral and Maxillofacial Radiology and Dental Research Institute, School of Dentistry, Seoul National University, Seoul (Korea, Republic of)

    2014-12-15

    Primitive neuroectodermal tumor (PNET), which belongs to the Ewing's sarcoma (ES) family of tumors, is mainly seen in children and young adults. PNETs are extremely rare in the maxilla. Here, we report a case of PNET of the left maxillary sinus in an elderly male. Magnetic resonance imaging (MRI) revealed a slightly enhanced solid mass occupying the left maxillary sinus and infiltrating into the retroantral space. A partial maxillectomy was performed. Despite postoperative chemotherapy, follow-up computed tomography (CT) and MRI revealed a nodal metastasis in the submandibular space. Neck dissection was performed. However, the patient died 10 months after the second surgery because of distant metastasis to the liver. MRI and CT were particularly useful in detecting the extent of the tumor, recurrence, and metastasis. Further, a literature review of the previously reported PNET cases of the maxilla was carried out. In this paper, we also discuss the current approach for the diagnosis and management of these tumors.

  10. Primitive neuroectodermal tumor of the maxillary sinus in an elderly male: A case report and literature review

    International Nuclear Information System (INIS)

    Primitive neuroectodermal tumor (PNET), which belongs to the Ewing's sarcoma (ES) family of tumors, is mainly seen in children and young adults. PNETs are extremely rare in the maxilla. Here, we report a case of PNET of the left maxillary sinus in an elderly male. Magnetic resonance imaging (MRI) revealed a slightly enhanced solid mass occupying the left maxillary sinus and infiltrating into the retroantral space. A partial maxillectomy was performed. Despite postoperative chemotherapy, follow-up computed tomography (CT) and MRI revealed a nodal metastasis in the submandibular space. Neck dissection was performed. However, the patient died 10 months after the second surgery because of distant metastasis to the liver. MRI and CT were particularly useful in detecting the extent of the tumor, recurrence, and metastasis. Further, a literature review of the previously reported PNET cases of the maxilla was carried out. In this paper, we also discuss the current approach for the diagnosis and management of these tumors.

  11. A novel approach revealing the effect of a collagenous membrane on osteoconduction in maxillary sinus floor elevation with ?-tricalcium phosphate

    OpenAIRE

    EAJM Schulten; H-J Prins; JR Overman; MN Helder; CM ten Bruggenkate; Klein-Nulend, J.

    2013-01-01

    Calcium phosphates are used in maxillary sinus floor elevation (MSFE) procedures to increase bone height prior to dental implant placement. Whether a collagenous barrier membrane coverage of the lateral window affects bone formation within a bone substitute augmentation is currently an important matter of debate, since its benefit has not been irrefutably proven. Therefore, in this clinical study twelve patients underwent an MSFE procedure with ?-tricalcium phosphate (?-TCP). The lateral wind...

  12. Correlation of Fractal Dimension with Histomorphometry in Maxillary Sinus Lifting Using Autogenous Bone Graft

    Scientific Electronic Library Online (English)

    Rafael Scaf de, Molon; Wagner Nunes de, Paula; Rubens, Spin-Neto; Mario Henrique Arruda, Verzola; Guilherme Monteiro, Tosoni; Raphael Carlos Comelli, Lia; Gulnara, Scaf; Elcio Marcantonio, Jr.

    2015-02-01

    Full Text Available O objetivo deste estudo foi determinar o padrão de remodelação óssea após levantamento de seio maxilar in humanos por meio de analise de dimensão fractal (FD) e histomorfometria. Além disso, a correlação entre FD e histomorfometria foi avaliada. Dezesseis [...] pacientes com edentulismo na região posterior da maxila foram relacionados para este estudo. Levantamento de seio maxilar foi realizado utilizando-se enxerto de osso autógeno coletado da região retro molar da mandíbula. Três radiografias panorâmicas digitais foram obtidas: antes da cirurgia (Grupo 1), imediatamente após o levantamento de seio (Grupo 2) e após 6 meses de cicatrização (Grupo 3) para analise de FD. Biopsias foram coletadas após 6 meses, processadas e submetidas para analise histológica e histomorfométrica. Os dados foram analisados utilizando-se o teste Shapiro-Wilk e ANOVA seguido pelo pós teste de Tukey (a=0.05). A fração de volume de ósseo neoformado para o osso trabecular (TB) e para a área medular (MA) foi mensurado como 65,75%±17,16% and 37,25±17,16%, respectivamente. Diferença significante na analise FD foi observada entre os grupos 1 e 3. Nenhuma diferença estatística foi encontrada para correlação entre FD e histomorfometria para TB e MA (p=0,84). Em conclusão, todas as análises realizadas foram efetivas em acessar o padrão de remodelação ósseo no seio maxilar, oferecendo informações complementares sobre cicatrização e previsibilidade de resultados. Não houve correlação entre FD e histomorfometria. Abstract in english The aim of this study was to determine the pattern of bone remodeling after maxillary sinus lifting in humans by means of fractal dimension (FD) and histomorphometric analysis. Therefore, the correlation between FD and the histomorphometric findings was e [...] valuated. Sixteen patients with posterior edentulous maxilla were enrolled in this study. Maxillary sinus lifting was performed using autogenous bone grafted from the mandibular retromolar area. Three direct digital panoramic radiographs were obtained: before surgery (Group 1), immediately postoperatively (Group 2) and after 6 months of healing (Group 3) for FD analysis. Biopsies were taken after 6 months, processed and submitted to histological and histomorphometric analysis. Data were analyzed by Shapiro-Wilk test and ANOVA test followed by a Tukey test (a=0.05). The bone volume fraction of newly trabecular bone (TB) and medullary area (MA) was measured as 62.75%±17.16% and 37.25±17.16%, respectively. Significant difference in FD analysis was measured between Group 1 and Group 3. No significant difference was found in the correlation between FD and histomorphometric analysis for TB and MA (p=0.84). In conclusion, all performed analyses were effective in assessing the bone-remodeling pattern in the maxillary sinus, offering complementary information about healing and predictable outcomes. There were no correlations between FD and histomorphometric analysis.

  13. Synthetic Bone Substitute Engineered with Amniotic Epithelial Cells Enhances Bone Regeneration after Maxillary Sinus Augmentation

    Science.gov (United States)

    Barboni, Barbara; Mangano, Carlo; Valbonetti, Luca; Marruchella, Giuseppe; Berardinelli, Paolo; Martelli, Alessandra; Muttini, Aurelio; Mauro, Annunziata; Bedini, Rossella; Turriani, Maura; Pecci, Raffaella; Nardinocchi, Delia; Zizzari, Vincenzo Luca; Tetè, Stefano; Piattelli, Adriano; Mattioli, Mauro

    2013-01-01

    Background Evidence has been provided that a cell-based therapy combined with the use of bioactive materials may significantly improve bone regeneration prior to dental implant, although the identification of an ideal source of progenitor/stem cells remains to be determined. Aim In the present research, the bone regenerative property of an emerging source of progenitor cells, the amniotic epithelial cells (AEC), loaded on a calcium-phosphate synthetic bone substitute, made by direct rapid prototyping (rPT) technique, was evaluated in an animal study. Material And Methods Two blocks of synthetic bone substitute (?0.14 cm3), alone or engineered with 1×106 ovine AEC (oAEC), were grafted bilaterally into maxillary sinuses of six adult sheep, an animal model chosen for its high translational value in dentistry. The sheep were then randomly divided into two groups and sacrificed at 45 and 90 days post implantation (p.i.). Tissue regeneration was evaluated in the sinus explants by micro-computer tomography (micro-CT), morphological, morphometric and biochemical analyses. Results And Conclusions The obtained data suggest that scaffold integration and bone deposition are positively influenced by allotransplantated oAEC. Sinus explants derived from sheep grafted with oAEC engineered scaffolds displayed a reduced fibrotic reaction, a limited inflammatory response and an accelerated process of angiogenesis. In addition, the presence of oAEC significantly stimulated osteogenesis either by enhancing bone deposition or making more extent the foci of bone nucleation. Besides the modulatory role played by oAEC in the crucial events successfully guiding tissue regeneration (angiogenesis, vascular endothelial growth factor expression and inflammation), data provided herein show that oAEC were also able to directly participate in the process of bone deposition, as suggested by the presence of oAEC entrapped within the newly deposited osteoid matrix and by their ability to switch-on the expression of a specific bone-related protein (osteocalcin, OCN) when transplanted into host tissues. PMID:23696804

  14. Calvarial autogenous bone graft for maxillary ridge and sinus reconstruction for rehabilitation with dental implants

    DEFF Research Database (Denmark)

    Bastos, Alliny Souza; Spin-Neto, Rubens

    2014-01-01

    Autogenous bone grafting is the gold-standard technique for bone augmentation procedures prior to implant placement. If the amount of available intraoral donor bone is insufficient, it is necessary to harvest bone graft from extraoral sites, such as calvaria. Although this technique is well established, only a few case reports show the histological analysis of the grafted bone at the moment of implant placement. This article reports the case of a 48-year-old female patient with a critical atrophic maxillary ridge reconstructed using autogenous calvarial bone graft prior to implant placement, with clinical and histological evaluation. Bone was collected under general anesthesia from the parietal bone. The outer cortical originated the bone blocks, and the medullar bone layer between was collected to be used in the sinus augmentation procedure, together with 5 of the bone blocks triturated. Six months after bone augmentation, 8 implants were placed in the grafted area and 2 biopsies were retrieved (anterior andthe posterior regions), allowing the visualization of the bone-remodeling process in the grafted areas. The patient had a stable recovery. Our results showed that although necrotic bone could still be seen in the outer layer of the grafted area, the interface between this necrotic bone and the already remodeled bone was consistent with biocompatibility. Two-year radiographic evaluation showed success of the grafts and the implants in supporting an esthetic and functionally stable prosthesis. Summarizing, calvarial bone grafts are a viable alternative for the attainment of adequate bone volume prior to implant placement.

  15. Ameloblastomas en la infancia localizados en el seno maxilar / Ameloblastomas of the maxillary sinus in children

    Scientific Electronic Library Online (English)

    Carlos E., Zamora Linares.

    2013-11-01

    Full Text Available El ameloblastoma es un tumor odontogénico descrito como una lesión anatómicamente benigna y clínicamente persistente, que afecta a los huesos maxilares, principalmente a la mandíbula. No es frecuente en niños y los criterios de tratamiento quirúrgico en la infancia son controversiales, debido, en pa [...] rte, al riesgo de recurrencia cuando se practican métodos conservadores. Por otro lado, el tratamiento radical puede trastornar el crecimiento maxilofacial y provocar graves problemas estéticos y funcionales. Se describen 2 casos clínicos de niños con ameloblastomas monoquísticos localizados en el seno maxilar y tratados conservadoramente, los cuales después de 7 y 4 años, respectivamente, de seguimiento no han mostrado signos clínicos ni radiográficos de recurrencia tumoral. Abstract in english The ameloblastoma is an odontogenic tumor described as an anatomically benign and clinically persistent lesion affecting the jaws, especially the mandible. It is rare in children and the criteria for surgery in the childhood are controversial, partly due to the risk of recurrence when conservative m [...] ethods are practiced. On the other hand, a radical treatment can alter the maxillofacial growth and cause serious esthetic and functional problems. Two clinical cases of children with unicystic ameloblastoma located in the maxillary sinus and treated conservatively are described, who after 7 and 4 years of follow-up, respectively, showed no clinical and radiographic signs of tumor recurrence.

  16. A study on radiation therapy combined with superselective intraarterial infusion therapy for maxillary sinus carcinoma

    International Nuclear Information System (INIS)

    The data of 14 patients with squamous cell carcinoma of the maxillary sinus who were admitted to our hospital and received radiation therapy and concurrent superselective intraarterial infusion therapy between 1998 and 2008 were analyzed to determine the effect of the primary treatment and the adverse events. The subjects were between 43 and 79 years old (median, 61 years old), and there were 10 male and 4 female patients. Superselective intraarterial infusion therapy was administered using the Seldinger method, and cisplatin (CDDP) was administered by intraarterial infusion at a total of 200 mg/m2. 5-fluorouracil (FU) was systemically administered by intravenous infusion at the dose of 800 mg/m2 from day 2 to day 5. In addition, radiation therapy was given concurrently, beginning on day 2. At 4 weeks after completion of the scheduled radiation therapy combined with superselective intraarterial infusion therapy, the treatment effect was judged based on macroscopic, radiological and histopathological findings. The response rates to the primary treatment were as follows: 57.1%, complete response (CR) (8 patients) and 42.9%, partial response (PR) (6 patients). Thus, the overall response rate was 100%. As for the adverse events, while grade 4 cerebral infarction occurred in one patient, all of the other adverse events were reversible and not serious. The safety of the treatment was therefore considered to be acceptable. We are planning to investigate the long-term outcomes in a future study. (author)

  17. Late injury of the eye after conformation radiotherapy for carcinoma of the maxillary sinus

    International Nuclear Information System (INIS)

    Late injury of the eye after radiotherapy for 26 patients with carcinoma of the maxillary sinus was discussed. The conformation technique, a kind of improved rotational technique, was used as the method for radiotherapy. The eyes were shielded by a tungsten- or zinc-rod during irradiation. On the healthy-sided eye, which had received a total dose of 1000-1100 rads/6 weeks (max. 1460 rads/6 weeks), no impairment of vision was seen. On the ill-sided eye given a dose of more than 6000 rads/6 weeks, severe panophthalmopathy with corneal ulceration was observed within 1 year after irradiation. Serious deterioration of visual acuity alway occurred 1.5-2 years after on irradiation of the level of 4000 rads/6 weeks. At present the weakening of visual acuity is unlikely to occur after a dose of less than 3000 rads/6 weeks to the lens. From these results it is recommended that the total dose of the eye be reduced to less than 3000 rads/6 weeks. (author)

  18. Investigation of multipotent postnatal stem cells from human maxillary sinus membrane.

    Science.gov (United States)

    Guo, JunBing; Weng, JunQuan; Rong, Qiong; Zhang, Xing; Zhu, ShuangXi; Huang, DaiYing; Li, Xiang; Chen, SongLing

    2015-01-01

    Maxillary sinus membrane (MSM) elevation is a common surgical technique for increasing bone height in the posterior maxilla prior to dental implant placement. However, the biological nature of bone regeneration in MSM remains largely unidentified. In this study, MSM tissue was obtained from 16 individuals during orthognathic surgery and used to isolate MSM stem cells (MSMSCs) by single-colony selection and STRO-1 cell sorting. The cell characteristics in terms of colony-forming ability, cell surface antigens, multi-differentiation potential and in vivo implantation were all evaluated. It was found that MSMSCs were of mesenchymal origin and positive for mesenchymal stem cell (MSC) markers such as STRO-1, CD146, CD29 and CD44; furthermore, under defined culture conditions, MSMSCs were able to form mineral deposits and differentiate into adipocytes and chondrocytes. When transplanted into immunocompromised rodents, MSMSCs showed the capacity to generate bone-like tissue and, importantly, maintain their MSC characteristics after in vivo implantation. These findings provide cellular and molecular evidence that MSM contains stem cells that show functional potential in bone regeneration for dental implant. PMID:26119339

  19. CLINICAL USE OF MODERN FLUOROQUINOLONES IN DENTAL IMPLANTATION AND MAXILLARY SINUS LIFTING

    Directory of Open Access Journals (Sweden)

    S.A. Novikov

    2009-03-01

    Full Text Available New fluoroquinolones like levofloxacine, with broad-spectrum of effect which is also active against anaerobic bacteria, is a prospective drug for the prevention of the inflammatory complications in implant dentistry and maxillary sinus augmentation. 34 patients have been selected for this study, including 16 women and 18 men aged 18-65. All the patients have been classified into the main and control groups. Patiens of the first group have been prescribed 500 mg of levofloxacine before and after the operation two times a day for 10 days. Patients of the control group have been treated with amocxicilline. In the control group, which has used amoxicilline, Streptococcus sanguis, Streptococcus salivarius and anaerobic bacteria have been identified. The amount of Prevotella intermedia is insignificant. The same picture has been found with Fusobacterium spp. The rate of Actinomyces spp. was insignificant over the whole period of study. Patients of the experimental group had a slightly different distribution of bacteria. On the 10th day after the operation in the main patient group no periodontal pathogenesis, which may cause inflammatory complications have been identified. During the early post-operative period no significant differences have been observed among the patients of both groups.

  20. Morphometric Analysis of Developing Maxillary Sinuses in Human Foetuses / Análisis Morfométrico del Desarrollo de los Senos Maxilares en Fetos Humanos

    Scientific Electronic Library Online (English)

    Ghaus, Farah; Ahmad Faruqi, Nafis.

    2006-09-01

    Full Text Available El desarrollo de los senos paranasales en humanos y en muchos mamíferos ha permanecido como un enigma hace ya varios milenios. Análisis morfométricos de los senos maxilares en fetos humanos no han sido suficientemente documentados y en la India son inexistentes. El presente estudio fue llevado a cab [...] o para determinar los diferentes diámetros, el padrón de crecimiento, el dimorfismo sexual y las variaciones bilaterales en los senos maxilares de 37 fetos humanos de diferentes edades (16-34 semanas de vida intrauterina), los cuales fueron divididos en 5 grupos etarios. Los senos maxilares fueron disecados por la parte nasal del maxilar y los diversos diámetros fueron medidos con la ayuda de un caliper. El crecimiento porcentual del diámetro AP fue +48% en los fetos de 17-20 semanas (p Abstract in english The development of the paranasal sinuses, in human race and in many mammals remained as much an enigma as it did nearly two millennia ago. Morphometric analysis of maxillary sinuses in human foetuses are not fully documented and also their morphological studies in Indian population are non-existent. [...] So the present study was conducted to determine the different diameters, the pattern of growth, sexual dimorphism and bilateral variations in maxillary sinuses. 37 human foetuses of different age groups (16 - 34 wks of IUL) were divided into five groups on the basis of age. Maxillary sinuses were dissected out from the nasal aspects of maxillae and their various diameters were measured with the help of Vernier callipers. The percent growth of AP diameter was +48% in 17-20 wks (p

  1. Ausência de fluxo aéreo nasal e desenvolvimento dos seios maxilares / Absence of nasal air flow and maxillary sinus development

    Scientific Electronic Library Online (English)

    Roberto Eustáquio dos Santos, Guimarães; Gustavo Coelho dos, Anjos; Celso Gonçalves, Becker; Helena Maria Gonçalves, Becker; Paulo Fernando Tormin Borges, Crosara; Cláudia Pena, Galvão.

    2007-04-01

    Full Text Available Os mecanismos responsáveis pelo desenvolvimento dos seios paranasais ainda são pouco conhecidos, o fluxo aéreo nasal segundo uma das teorias propostas seria fundamental ao crescimento e desenvolvimento saudável dos seios paranasais. OBJETIVO: Estudar comparativamente o desenvolvimento dos seios maxi [...] lares e a presença de sinusopatia, em um mesmo modelo, na ausência e presença de fluxo aéreo nasal posterior. MATERIAL E MÉTODOS: Estudo retrospectivo transversal de uma série de casos; os exames tomográficos pré-operatórios de 7 pacientes com atresia coanal unilateral, idade média 16.28 anos (± 5,024). Este estudo realizado em um hospital terciário, com pacientes que passaram neste serviço entre os anos de 1994 e 2004. A área dos seios maxilares foi medida com auxílio do programa Auto-Cad. Utilizou-se o teste de Kruskal-Wallis para análise estatística. RESULTADOS: Nesse estudo observou-se seios maxilares simétricos e até mesmo maiores no lado da atresia coanal em 85,71% dos casos, não houve diferença estatística significativa entre os dois lados comparados. Não se observou sinais de tomográficos de sinusopatia neste grupo de pacientes. CONCLUSÃO: Os achados aqui apresentados contrariam a teoria difusamente aceita sobre o papel do fluxo aéreo nasal na saúde e no desenvolvimento das cavidades paranasais. Abstract in english Paranasal sinuses development mechanisms are not well known. Nasal air flow, according to one of the proposed theories, would be fundamental to the growth and healthy development of paranasal sinuses. AIM: The aim of this study was to evaluate the maxillary sinus growth and health in the presence an [...] d absence of postnasal air flow through a unique model. MATERIALS AND METHODS: Retrospective study of a series of cases; preoperative CT scans of 7 patients with unilateral choanal atresia, average age was 16.28 years (± 5.024). This study was done in a tertiary hospital, with patients treated between 1994 and 2004. The area of the maxillary sinuses was measured with the aid an Auto-Cad software. Kruskal-Wallis test was used in the statistical analysis. RESULTS: Symmetrical or even bigger maxillary sinuses were found in the same side of the choanal atresia in 85.71% of the cases. There was no significant statistic difference between compared sides. CT Scan signs of sinus disease were not seem in these patients. DISCUSSION: These findings oppose the commonly accepted theory about the role of nasal air flow in health and development of paranasal cavities.

  2. Carcinoma de seio maxilar: análise de dez casos / Maxillary sinus carcinoma: an analysis of ten cases

    Scientific Electronic Library Online (English)

    Ricardo Pires de, Souza; Flamarion de Barros, Cordeiro; Fábio Mota, Gonzalez; Ilka, Yamashiro; Ademar José de Oliveira, Paes Junior; Olger de Souza, Tornin; Renato Assayag, Botelho; Claudia da Costa, Leite; Cristiano Ventorim de, Barros; Igor Motta de, Aquino; Leonardo Lopes de, Macedo.

    2006-12-01

    Full Text Available OBJETIVO: Avaliar o papel, principalmente da tomografia computadorizada, no estadiamento dos carcinomas dos seios maxilares. MATERIAIS E MÉTODOS: Foram analisados dez casos de carcinoma diagnosticados e tratados pelos Departamentos de Diagnóstico por Imagem e Cirurgia de Cabeça e Pescoço do Hospital [...] Heliópolis, São Paulo, SP, entre 1988 e 2002. RESULTADOS: Nove pacientes tiveram extensão tumoral para a bochecha, oito para o espaço mastigador, sete para o assoalho da boca e palato duro, cinco para a fossa pterigóide, cinco para a órbita, três para o etmóide e um para a base do crânio. Três pacientes foram classificados como T3 e sete, como T4. Dois tinham metástases linfonodais no momento da apresentação inicial, os quais pertenciam ao estágio T4. Todos os casos foram confirmados com exame histopatológico. CONCLUSÃO: A análise precisa da extensão local e disseminação tumoral fornecida pela tomografia computadorizada e ressonância magnética desempenha papel importante no planejamento cirúrgico, influenciando, também, na conduta terapêutica e prognóstico. Abstract in english OBJECTIVE: To evaluate the role, especially of computed tomography, in the staging of maxillary sinus carcinomas. MATERIALS AND METHODS: Ten cases of carcinoma treated in Hospital Heliópolis Department of Diagnostic Imaging and Head and Neck Surgery, São Paulo, SP, Brazil, in the period between 1988 [...] and 2002, were evaluated. RESULTS: Nine patients presented with tumor extension to the cheek, eight to the masticator space, seven to the mouth floor and hard palate, five to the pterygoid fossa, five to the orbit, three to the ethmoid bone, and one to the skull base. Three of the patients were staged T3, and seven T4. Two patients had lymph nodes metastases at their initial presentation, and were staged T4. All of the cases were histopathologically confirmed. CONCLUSION: The accurate analysis of the tumor local extent and dissemination by means of computed tomography and magnetic resonance imaging plays a relevant role in the surgical planning, besides influencing the therapeutic conduct and prognosis.

  3. Carcinoma de seio maxilar: análise de dez casos Maxillary sinus carcinoma: an analysis of ten cases

    Directory of Open Access Journals (Sweden)

    Ricardo Pires de Souza

    2006-12-01

    Full Text Available OBJETIVO: Avaliar o papel, principalmente da tomografia computadorizada, no estadiamento dos carcinomas dos seios maxilares. MATERIAIS E MÉTODOS: Foram analisados dez casos de carcinoma diagnosticados e tratados pelos Departamentos de Diagnóstico por Imagem e Cirurgia de Cabeça e Pescoço do Hospital Heliópolis, São Paulo, SP, entre 1988 e 2002. RESULTADOS: Nove pacientes tiveram extensão tumoral para a bochecha, oito para o espaço mastigador, sete para o assoalho da boca e palato duro, cinco para a fossa pterigóide, cinco para a órbita, três para o etmóide e um para a base do crânio. Três pacientes foram classificados como T3 e sete, como T4. Dois tinham metástases linfonodais no momento da apresentação inicial, os quais pertenciam ao estágio T4. Todos os casos foram confirmados com exame histopatológico. CONCLUSÃO: A análise precisa da extensão local e disseminação tumoral fornecida pela tomografia computadorizada e ressonância magnética desempenha papel importante no planejamento cirúrgico, influenciando, também, na conduta terapêutica e prognóstico.OBJECTIVE: To evaluate the role, especially of computed tomography, in the staging of maxillary sinus carcinomas. MATERIALS AND METHODS: Ten cases of carcinoma treated in Hospital Heliópolis Department of Diagnostic Imaging and Head and Neck Surgery, São Paulo, SP, Brazil, in the period between 1988 and 2002, were evaluated. RESULTS: Nine patients presented with tumor extension to the cheek, eight to the masticator space, seven to the mouth floor and hard palate, five to the pterygoid fossa, five to the orbit, three to the ethmoid bone, and one to the skull base. Three of the patients were staged T3, and seven T4. Two patients had lymph nodes metastases at their initial presentation, and were staged T4. All of the cases were histopathologically confirmed. CONCLUSION: The accurate analysis of the tumor local extent and dissemination by means of computed tomography and magnetic resonance imaging plays a relevant role in the surgical planning, besides influencing the therapeutic conduct and prognosis.

  4. Maxillary sinus floor augmentation with Bio-Oss or Bio-Oss mixed with autogenous bone as graft in animals

    DEFF Research Database (Denmark)

    Jensen, T; Schou, S; Stavropoulos, Andreas; Terheyden, H; Holmstrup, P

    2012-01-01

    The objective of the present systematic review was to test the hypothesis of no differences between the use of Bio-Oss or Bio-Oss mixed with autogenous bone as graft for maxillary sinus floor augmentation (MSFA) applying the lateral window technique, as evaluated in animals. A MEDLINE (PubMed), Embase, and Cochrane Library search in combination with a hand-search of relevant journals was conducted by including animal studies published in English from 1 January 1990 to 1 June 2010. The search pro...

  5. Accuracy of panoramic radiographs in determining the relationship of posterior root apices and maxillary sinus floor by Cone-Beam CT

    Directory of Open Access Journals (Sweden)

    Hoorieh Bashizadeh Fakhar

    2014-06-01

    Full Text Available   Background and Aims: It is crucial to verify the relationship between root apices and maxillary sinus floor in some surgical procedures like extraction and implant placement or in orthodontic movements like intrusion. Protrusion of roots into the sinus increases the risk of post extraction pneumatization which in turn decreases the available bone at the implant or denture sites. The aim of this study was to determine the panoramic radiology accuracy for defining the relationship between posterior root apices and the maxillary sinus floor by Cone Beam CT (CBCT.   Materials and Methods: Paired panoramic radiographs and CBCT images of 117 subjects were examined. 452 posterior maxillary roots including second premolar, first and second molar were classified by the means of the relationship with maxillary sinus floor. CBCT was used as Gold standard method, and the agreement of panoramic findings with CBCT was examined statistically. Data were analyzed using Chi-square and Multiple logistic regressions.   Results: Agreement of the panoramic and CBCT results were seen in 57.7% of all cases. Roots which had no contacts with the sinus floor (class 0 showed a high agreement of 89.5% between two imaging techniques. Roots in contact with sinus floor (class 1 showed 58.8 % and cases with root protrusion into sinus cavity (class 3, 4 showed 50% of agreement (P<0.001. Also in 36% of cases with no protrusion into the sinus cavity (class 0, 1, 2, panoramic showed protrusion. The agreement for the premolar was higher than molars (P<0.001   Conclusion: The majority of roots which their images were projected on the sinus cavity had no vertical protrusion in CBCT cuts. Considering the results, in these cases CBCT can be recommended.

  6. Retração rápida de caninos associada ao levantamento do seio maxilar / Rapid canine retraction associated with maxillary sinus lifting

    Scientific Electronic Library Online (English)

    Paulo Renato Carvalho, Ribeiro; Silvia Regina de Souza, Monteiro; Sérgio Henrique Casarim, Fernandes; Gustavo Saggioro, Oliveira.

    2007-10-01

    Full Text Available INTRODUÇÃO: a retração rápida de caninos por distração do ligamento periodontal é uma técnica de movimentação dentária que permite o fechamento de espaço da extração de primeiros pré-molares em um intervalo de 2 ou 3 semanas, proporcionando uma redução significativa no tempo do tratamento ortodôntic [...] o. A técnica cirúrgica para realização deste procedimento é relativamente simples, entretanto, nos casos onde o seio maxilar apresenta-se próximo ao ápice radicular de caninos e pré-molares, sempre há o risco de perfuração da membrana desta cavidade. OBJETIVO: o objetivo deste artigo é apresentar, através de um caso clínico, uma modificação na técnica original proposta por Liou e Huang, onde o levantamento do seio maxilar, executado de forma bastante simples, imprimiu maior controle e segurança ao ato cirúrgico necessário para a realização da retração rápida de caninos. CONCLUSÃO: a retração rápida de caninos é um procedimento exeqüível e o levantamento de seio maxilar pode auxiliar na execução do movimento dentário. Abstract in english INTRODUCTION: Rapid canine distalization using distraction of the periodontal ligament is a tooth movement technique that allows to close the space of extraction of first premolars in about 2 or 3 weeks, reducing orthodontic treatment time considerably. The surgical technique for this procedure is r [...] easonably simple, however, during surgery in the maxilla, always exists the risk of sinus injury when the sinus membrane is close to the apex of canines and first premolars. AIM: The aim of this study is to present a case report showing a modification of the original technique proposed by Liou and Huang, where the maxillary sinus membrane lifting procedure was undertaken in a simple way, leaving it intact, and permitting a safer and more controlled protocol to start the rapid canine retraction. CONCLUSION: Rapid canine retraction is a viable procedure and maxillary sinus lifting may be helpful in providing the tooth movement.

  7. Avaliação do recesso lacrimal do seio maxilar: estudo anatômico Evaluation of the lacrimal recess of the maxillary sinus: an anatomical study

    Directory of Open Access Journals (Sweden)

    Paulo de Lima Navarro

    2013-02-01

    Full Text Available Arelação anatômica entre seio maxilar e ducto lacrimonasal adquiriu maior importância com o advento das microcirugias e cirurgias nasossinusais assistidas por endoscopia e pelo crescente uso da endoscopia nasal na realização das meatotomias médias e dacriocistorrinostomiastransnasais. Não foram encontrados relatos de classificação do seio maxilar quanto ao seu recesso lacrimal, tampouco sua frequência. OBJETIVO: Avaliar a frequência do recesso lacrimal do seio maxilar em peças anatômicas dissecadas. MÉTODO: Foram avaliadas 31 partes de hemicabeças de cadáveres. Procedeu-se à dissecção da área correspondente ao terço médio da face, por acesso lateral, para que se pudesse observar a posição da porção mais lateral do ducto lacrimonasal em relação ao seio maxilar. Os seios maxilares foram avaliados, por dois examinadores simultaneamente, chegando ao consenso do tipo de ducto lacrimonasal. RESULTADOS: Foram encontrados 18 seios maxilares do tipo lateral (58,1% e 13 do tipo anterior (41,9%. A diferença entre a frequência de seios maxilares do tipo anterior nos lados direito (35,7% e esquerdo (47,1% não mostrou significância estatística (p = 0,524. CONCLUSÃO: Observou-se frequência de 41,9% de recessos lacrimais nos seios maxilares.The anatomical relation between the maxillary sinus and the nasolacrimal duct has gained greater importance with the advent of microsurgeries and endoscopic-assisted sinonasal procedures, and the growing use of endonasal surgery to perform middle meatus procedures and transnasal dacryocystorhinostomy. We did not find reports on maxillary sinus classification concerning its lacrimal recess, nor how often it is found. OBJECTIVE: To assess how frequent the lacrimal recess can be found in the maxillary sinuses of dissected anatomical specimens. METHOD: We assessed 31 half-heads from cadavers. We dissected the area corresponding to the middle third of the face, by lateral access so as to be able to observe the most lateral portion of the nasolacrimal duct vis-à-vis the maxillary sinus.The maxillary sinuses were assessed by two examiners simultaneously, getting to a consensus in relation to the type of nasolacrimal duct. RESULTS: We assessed 18 maxillary sinuses of the lateral type (58.1% and 13 anterior sinuses (41.9%. The difference in frequency of the anterior type of maxillary type of the right side (35.7% and left (47.1% did not have statistical significance (p = 0.524. CONCLUSION: We found a frequency of 41.9% of lacrimal recesses in the maxillary sinuses.

  8. Avaliação do recesso lacrimal do seio maxilar: estudo anatômico / Evaluation of the lacrimal recess of the maxillary sinus: an anatomical study

    Scientific Electronic Library Online (English)

    Paulo de Lima, Navarro; Almiro José, Machado Júnior; Agrício Nubiato, Crespo.

    2013-02-01

    Full Text Available Arelação anatômica entre seio maxilar e ducto lacrimonasal adquiriu maior importância com o advento das microcirugias e cirurgias nasossinusais assistidas por endoscopia e pelo crescente uso da endoscopia nasal na realização das meatotomias médias e dacriocistorrinostomiastransnasais. Não foram enco [...] ntrados relatos de classificação do seio maxilar quanto ao seu recesso lacrimal, tampouco sua frequência. OBJETIVO: Avaliar a frequência do recesso lacrimal do seio maxilar em peças anatômicas dissecadas. MÉTODO: Foram avaliadas 31 partes de hemicabeças de cadáveres. Procedeu-se à dissecção da área correspondente ao terço médio da face, por acesso lateral, para que se pudesse observar a posição da porção mais lateral do ducto lacrimonasal em relação ao seio maxilar. Os seios maxilares foram avaliados, por dois examinadores simultaneamente, chegando ao consenso do tipo de ducto lacrimonasal. RESULTADOS: Foram encontrados 18 seios maxilares do tipo lateral (58,1%) e 13 do tipo anterior (41,9%). A diferença entre a frequência de seios maxilares do tipo anterior nos lados direito (35,7%) e esquerdo (47,1%) não mostrou significância estatística (p = 0,524). CONCLUSÃO: Observou-se frequência de 41,9% de recessos lacrimais nos seios maxilares. Abstract in english The anatomical relation between the maxillary sinus and the nasolacrimal duct has gained greater importance with the advent of microsurgeries and endoscopic-assisted sinonasal procedures, and the growing use of endonasal surgery to perform middle meatus procedures and transnasal dacryocystorhinostom [...] y. We did not find reports on maxillary sinus classification concerning its lacrimal recess, nor how often it is found. OBJECTIVE: To assess how frequent the lacrimal recess can be found in the maxillary sinuses of dissected anatomical specimens. METHOD: We assessed 31 half-heads from cadavers. We dissected the area corresponding to the middle third of the face, by lateral access so as to be able to observe the most lateral portion of the nasolacrimal duct vis-à-vis the maxillary sinus.The maxillary sinuses were assessed by two examiners simultaneously, getting to a consensus in relation to the type of nasolacrimal duct. RESULTS: We assessed 18 maxillary sinuses of the lateral type (58.1%) and 13 anterior sinuses (41.9%). The difference in frequency of the anterior type of maxillary type of the right side (35.7%) and left (47.1%) did not have statistical significance (p = 0.524). CONCLUSION: We found a frequency of 41.9% of lacrimal recesses in the maxillary sinuses.

  9. Volumetric changes of the graft after maxillary sinus floor augmentation with Bio-Oss and autogenous bone in different ratios: a radiographic study in minipigs

    DEFF Research Database (Denmark)

    Jensen, Thomas; Schou, Søren; Svendsen, Patricia A; Forman, Julie Lyng; Gundersen, Hans Jørgen G; Terheyden, Hendrik; Holmstrup, Palle

    2012-01-01

    Objective: The objective of the present study was to learn about the volumetric changes of the graft after maxillary sinus floor augmentation with Bio-Oss and autogenous bone from the iliac crest or the mandible in different ratios in minipigs. Material and methods: Bilateral maxillary sinus floor augmentation was performed in 40 minipigs with: (A) 100% autogenous bone, (B) 75% autogenous bone and 25% Bio-Oss, (C) 50% autogenous bone and 50% Bio-Oss, (D) 25% autogenous bone and 75% Bio-Oss, and ...

  10. Use of autogenous bone and beta-tricalcium phosphate in maxillary sinus lifting : a prospective, randomized, volumetric computed tomography study

    DEFF Research Database (Denmark)

    Gorla, L F de O; Spin-Neto, R

    2015-01-01

    The correction of bone defects can be performed using autogenous or alloplastic materials, such as beta-tricalcium phosphate (?-TCP). This study compared the changes in bone volume (CBV) after maxillary sinus lifting using autogenous bone (n=12), autogenous bone associated with ?-TCP 1:1 (ChronOS; DePuy Synthes, Paoli, CA, USA) (n=9), and ?-TCP alone (n=11) as grafting material, by means of cone beam computed tomography (CBCT). CBV was evaluated by comparing CBCT scans obtained in the immediate postoperative period (5-7 days) and at 6 months postoperative in each group using OsiriX software (OsiriX Foundation, Geneva, Switzerland). The results showed an average resorption of 45.7±18.6% for the autogenous bone group, 43.8±18.4% for the autogenous bone+?-TCP group, and 38.3±16.6% for the ?-TCP group. All bone substitute materials tested in this study presented satisfactory results for maxillary sinus lifting procedures regarding the maintenance of graft volume during the healing phase before the insertion of implants, as assessed by means of CBCT.

  11. A novel approach revealing the effect of a collagenous membrane on osteoconduction in maxillary sinus floor elevation with ?-tricalcium phosphate

    Directory of Open Access Journals (Sweden)

    EAJM Schulten

    2013-03-01

    Full Text Available Calcium phosphates are used in maxillary sinus floor elevation (MSFE procedures to increase bone height prior to dental implant placement. Whether a collagenous barrier membrane coverage of the lateral window affects bone formation within a bone substitute augmentation is currently an important matter of debate, since its benefit has not been irrefutably proven. Therefore, in this clinical study twelve patients underwent an MSFE procedure with ?-tricalcium phosphate (?-TCP. The lateral window was either left uncovered, or covered with a resorbable collagenous barrier membrane. After a 6-months healing period, bone biopsies were retrieved during implant placement. Consecutive 1 mm regions of interest of these biopsies were assessed for bone formation, resorption parameters, as well as bone architecture using histology, histomorphometry and micro-computed tomography. Comparable outcomes between the groups with and without membrane were observed regarding osteoconduction rate, bone and graft volume, osteoclast number and structural parameters of newly formed bone per region of interest. However, osteoid volume in grafted maxillary sinus floors without membrane was significantly higher than with membrane. In conclusion, our results – obtained with a novel method employed using 1 mm regions of interest – demonstrate that the clinical application of a bioresorbable collagenous barrier membrane covering the lateral window, after an MSFE procedure with ?-TCP, was not beneficial for bone regeneration and even decreased osteoid production which might lead to diminished bone formation in the long run.

  12. Large Reactional Osteogenesis in Maxillary Sinus Associated with Secondary Root Canal Infection Detected Using Cone-beam Computed Tomography.

    Science.gov (United States)

    Estrela, Carlos; Porto, Olavo César Lyra; Costa, Nádia Lago; da Silva Garrote, Marcel; Decurcio, Daniel Almeida; Bueno, Mike R; de Freitas Silva, Brunno Santos

    2015-12-01

    Inflammatory injuries in the maxillary sinus may originate from root canal infections and lead to bone resorption or regeneration. This report describes the radiographic findings of 4 asymptomatic clinical cases of large reactional osteogenesis in the maxillary sinus (MS) associated with secondary root canal infection detected using cone-beam computed tomographic (CBCT) imaging. Apical periodontitis, a consequence of root canal infection, may lead to a periosteal reaction in the MS and osteogenesis seen as a radiopaque structure on imaging scans. The use of a map-reading strategy for the longitudinal and sequential slices of CBCT images may contribute to the definition of diagnoses and treatment plans. Root canal infections may lead to reactional osteogenesis in the MS. High-resolution CBCT images may reveal changes that go unnoticed when using conventional imaging. Findings may help define initial diagnoses and therapeutic plans, but only histopathology provides a definitive diagnosis. Surgical enucleation of the periapical lesion is recommended if nonsurgical root canal treatment fails to control apical periodontitis. PMID:26478436

  13. Morphometric Analysis of Developing Maxillary Sinuses in Human Foetuses Análisis Morfométrico del Desarrollo de los Senos Maxilares en Fetos Humanos

    Directory of Open Access Journals (Sweden)

    Ghaus Farah

    2006-09-01

    Full Text Available The development of the paranasal sinuses, in human race and in many mammals remained as much an enigma as it did nearly two millennia ago. Morphometric analysis of maxillary sinuses in human foetuses are not fully documented and also their morphological studies in Indian population are non-existent. So the present study was conducted to determine the different diameters, the pattern of growth, sexual dimorphism and bilateral variations in maxillary sinuses. 37 human foetuses of different age groups (16 - 34 wks of IUL were divided into five groups on the basis of age. Maxillary sinuses were dissected out from the nasal aspects of maxillae and their various diameters were measured with the help of Vernier callipers. The percent growth of AP diameter was +48% in 17-20 wks (p El desarrollo de los senos paranasales en humanos y en muchos mamíferos ha permanecido como un enigma hace ya varios milenios. Análisis morfométricos de los senos maxilares en fetos humanos no han sido suficientemente documentados y en la India son inexistentes. El presente estudio fue llevado a cabo para determinar los diferentes diámetros, el padrón de crecimiento, el dimorfismo sexual y las variaciones bilaterales en los senos maxilares de 37 fetos humanos de diferentes edades (16-34 semanas de vida intrauterina, los cuales fueron divididos en 5 grupos etarios. Los senos maxilares fueron disecados por la parte nasal del maxilar y los diversos diámetros fueron medidos con la ayuda de un caliper. El crecimiento porcentual del diámetro AP fue +48% en los fetos de 17-20 semanas (p <0.001, el diámetro vertical fue de +60% (p <0.001.Los diámetros AP de ambos lados de un feto tuvieron una variación significativa (p <0.005 en menores de 17 semanas. Los diámetros AP fueron invariablemente mayores en fetos masculinos, pero una variación significativa (p <0.001 fue encontrada solamente en individuos de 26 a 36 semanas, mientras que una variación significativa (p <0.02 fue observada en los diámetros transversos en fetos masculinos de 21-25 semanas. Las dimensiones anteroposteriores mostraron un crecimiento más rápido, mientras que otros diámetros fueron en concordancia con la circcunferencia craneal. Se puede concluir que: 1 Diámetros diferentes del seno maxilar tienen una aceleración de crecimiento en diferentes periodos de la vida intrauterina. 2 Valores de los diámetros AP permanecen más altos, desde el inicio al término de la vida intrauterina. 3 Los senos maxilares permanecen relativamente más amplios en fetos masculinos a través de su vida

  14. Alphamimetic effects at the nasal mucosa in the MR tomogram

    International Nuclear Information System (INIS)

    The effect of xylometazolin spray (OTRIVEN) on the nasal mucosa was tested on persons with and without clinical signs of rhinitis and sinusitis. MRI is an excellent means to show the decongestive effect. The reaction is chiefly seen at the inferior and middle nasal concha and becomes manifest in a few minutes. No significant effect is noticeable at the maxillary sinus mucosa and infiltrated ethmoidal sinus. Generally, it is possible to show and examine the pharmacological effects that change the size and the liquid consistency of organs. (orig.)

  15. Análise microbiológica em secreção de seio maxilar nos pacientes com rinossinusite crônica / Maxillary sinuses microbiology from patients with chronic rhinosinusitis

    Scientific Electronic Library Online (English)

    Karina, Mantovani; Andréia Alessandra, Bisanha; Ricardo Cassiano, Demarco; Edwin, Tamashiro; Roberto, Martinez; Wilma Terezinha, Anselmo-Lima.

    2010-10-01

    Full Text Available Não existem dados definitivos e consistentes sobre a real distribuição dos microorganismos presentes em pacientes com Rinossinusite Crônica (RSC). A variabilidade dos resultados de estudos em RSC deve-se às diferentes técnicas utilizadas como método de coleta, variações nos métodos de cultura, uso p [...] révio de antibiótico, dificuldade de se distinguir agentes colonizadores e patogênicos. FORMA DE ESTUDO: Clínico-prospectivo. OBJETIVO: Estudar a incidência dos microrganismos presentes nos pacientes com RSC na nossa região, através da cultura da secreção do seio maxilar, coletada sob visão endoscópica. MATERIAIS E MÉTODOS: Estudo transversal em 62 pacientes com RSC, submetidos à coleta de secreção de seio maxilar por via endoscópica, com material enviado para cultura para diagnóstico microbiológico. RESULTADOS: Das 62 amostras estudadas, em 33 (53,2%) não houve crescimento de microrganismos; 29 (45,2%) apresentaram isolamento de aeróbios; um caso (1,6%) mostrou crescimento de fungo; não houve o isolamento de microrganismos anaeróbios. Pseudomonas aeruginosa foi isolada com maior frequência - em 8 amostras (27,6%), Staphylococcus aureus e Staphylococcus epidermidis em 4 amostras cada um (13,9%), Streptococcus pneumoniae em 3 amostras (10,4%), outros Gram-negativos em 17 amostras (31%). CONCLUSÃO: Pseudomonas aeruginosa, outras bactérias Gram-negativas e Staphylococcus spp constituíram a microbiota predominante nos seios paranasais de pacientes com RSC. Abstract in english There isn't definitive and consistent data concerning the distribution of bacterial species in patients with Chronic Sinusitis (CS). The variability of the results from studies in CS may be due to the different techniques used as collection method, variations in culture methods, previous antibiotic [...] use, and difficulty in distinguishing bacterial flora from pathogenic agents. STUDY DESIGN: Clinical prospective. AIM: To identify the incidence of microorganisms in patients with CRS by growing bacteria from the secretion of the maxillary sinus. PATIENTS AND METHODS: Cross-sectional study in 62 patients that had undergone FESS for treatment of chronic sinusitis; cultures from the maxillary sinus were obtained. RESULTS: 62 samples, 33 (53.2%) had no growth; 29 (45.2%) counts of aerobic bacteria; one case (1.6%) of fungus growth; we did not find anaerobic bacteria. Pseudomonas aeruginosa was the one more frequently found - 8 samples (27.6%), Staphylococcus aureus and Staphylococcus epidermidis in 4 samples each; Streptococcus pneumoniae in 3 samples (10.4%); other Gram negative agents in 17 samples (31%). CONCLUSION: In the present study we concluded that Pseudomonas aeruginosa, other Gram negatives bacteria and Staphylococcus spp were the representatives of the bacterial flora found in the paranasal sinuses of patients with CS.

  16. Histological evaluation of maxillary sinus floor augmentation with recombinant human growth and differentiation factor-5-coated ?-tricalcium phosphate : results of a multicenter randomized clinical trial

    DEFF Research Database (Denmark)

    Stavropoulos, Andreas; Becker, Jürgen

    2011-01-01

    The aim of this prospective, multicenter, randomized clinical trial was to evaluate histologically the outcome of maxillary sinus lift augmentation with a recombinant human growth and differentiation factor-5-coated ?-tricalcium phosphate (rhGDF-5/?-TCP) or with a ?-TCP and autogenous bone (?-TCP/AB) composite.

  17. Quantitative analyses of maxillary sinus using computed tomography / Análise quantitativa dos seios maxilares por meio da tomografia computadorizada

    Scientific Electronic Library Online (English)

    Andréia, Perella; Sara dos Santos, Rocha; Marcelo de Gusmão Paraiso, Cavalcanti.

    2003-09-01

    Full Text Available O objetivo deste trabalho foi avaliar a precisão e acurácia de medidas lineares da região de seio maxilar realizadas em filmes tomográficos, por meio de comparação com a reconstrução da imagem em 3D. Medidas lineares de ambos os seios maxilares foram realizadas em tomografias computadorizadas (2D-TC [...] ) de 17 pacientes, normais e com lesão, por dois examinadores, calibrados, separadamente, duas vezes cada um, utilizando um compasso. Um terceiro observador realizou as mesmas medidas eletronicamente na reconstrução 3D-TC. ANOVA (análise de variância) foi utilizado para análise estatística. A porcentagem de erro intra-examinadores foi pequena em ambos os casos, com ou sem lesão, variando de 1,14% a 1,82%. O erro inter-examinadores foi maior alcançando o valor de 2,08% .O erro percentual de acurácia nas amostras com lesão foram maiores comparando-as às que não tinham lesão. A tomografia computadorizada em 2D-TC (Em filmes e estação de trabalho independente) proporcionou precisão e acurácia adequadas para análise dos seios maxilares. "O erro foi maior no caso de seios maxilares com lesão,comparando aos lados sem lesão, tanto inter quanto intra-examinadores, sem alterar, porém, a eficácia do método." Abstract in english The aim of this study was to evaluate the precision and accuracy of linear measurements of maxillary sinus made in tomographic films, by comparing with 3D reconstructed images. Linear measurements of both maxillary sinus in computed tomography CT of 17 patients, with or without lesion by two calibra [...] ted examiners independently, on two occasions, with a single manual caliper. A third examiner has done the same measurements electronically in 3D-CT reconstruction. The statistical analysis was performed using ANOVA (analyses of variance). Intra-observer percentage error was little in both cases, with and without lesion; it ranged from 1.14% to 1.82%. The inter-observer error was a little higher reaching a 2.08% value. The accuracy presented a higher value. The perceptual accuracy error was higher in samples, which had lesion compared to that which had not. CT had provided adequate precision and accuracy for maxillary sinus analyses. The precision in cases with lesion was considered inferior when compared to that without lesion, but it can't affect the method efficacy.

  18. Studies on serum protein fractions of patients with maxillary sinus cancer undergoing a combination of radiotherapy and chemotherapy

    International Nuclear Information System (INIS)

    39 cases of maxillary sinus cancer were treated with combined intra-arterial infusion of bleomycin and external irradiation of 60Co?-ray. Serum protein fractions in the sera of 39 cases of maxillary sinus cancer were examined through the radial immunodiffusion method, 1) before radiation treatment was given, 2) at the completion of radiation therapy and 3) after radiation therapy, ranging from 1 month to 36 months. The sera obtained from patients with maxillary sinus cancer before treatment had concentrations of: ?1-acid glycoprotein (?1AG), ?1-antitrypsin (?1AT), ?1-chymotrypsin (?1X), haptoglobin (Hp), ceruloplasmin (Cp), ?1C/A glycoprotein (C3), hemopexin (Hx), IgG and of IgA which were elevated compared with those of normal controls: However, the serum concentrations of: prealbumin (Prealb), albumin (Alb), transferrin (Tf), ?2-macroglobulin (?2M), HS-glycoprotein (?2HS) and of IgM were reduced significantly. At the completion of radiation therapy, the concentrations of: Prealb, Tf, ?1AG, ?1X, Hx, C3, IgG, IgA and of IgM rose slightly as compared with levels before radiation therapy, and the concentrations of Alb, of ?2HS and of ?1AT were reduced. However, there was no significant difference between the former and the latter data. In patients who died within 12 months after treatment, the Prealb, Alb, Tf, ?2HS, and IgM levels examined before radiation therapy were reduced and the ?1AG level was elevated compared with those who had lived more than 13 months. The Prealb, Alb, Tf, and IgM levels, after radiation therapy were reduced; while the ?1AG, Hp, and ?1X levels were elevated. In patients who had lived more than 13 months, after treatment, concentrations of Prealb, of Alb, of Tf, of C3, of Hx, of IgG, of IgA and of IgM rose before and after radiation therapy, compared with those who died within 12 months. (author)

  19. Definitive radiotherapy with or without chemotherapy for T3-4N0 squamous cell carcinoma of the maxillary sinus and nasal cavity

    International Nuclear Information System (INIS)

    The objective of this study is to evaluate the efficacy and toxicity of definitive radiotherapy with or without chemotherapy for T3-4 squamous cell carcinoma of maxillary sinus and nasal cavity. Forty-two patients with T3-4N0 squamous cell carcinoma of maxillary sinus (n=30) and nasal cavity (n=12) received definitive radiotherapy. Chemotherapy was used in 34 patients and elective neck irradiation was not used. The 5-year overall survival/local control rates were 34%/29% for maxillary sinus cancer and 50%/52% for nasal cavity cancer. For maxillary sinus cancers, a performance status of Eastern Cooperative Oncology Group ?2 (P=0.012), biologically equivalent dose <68 Gy (P=0.011) and no use of chemotherapy (P=0.037) were significant worse predictors for overall survival on log-rank analysis. Biologically equivalent dose <68 Gy was independently associated with poor local control (hazard ratio, 3.32; 95% confidence interval, 1.38-7.97; P=0.007) and overall survival (hazard ratio, 2.94; 95% confidence interval, 1.23-7.01; P=0.015). Regional recurrence occurred in only 1 of 30 patients with maxillary sinus cancer and 4 of 12 patients with nasal cavity. Two radiation necrosis in brain, one osteoradionecrosis, and one retinopathy and optic neuropathy occurred. The treatment outcome was poor and local control was a major problem. High radiation dose, effective chemotherapy and elective neck irradiation for advanced nasal cavity cancers may improve disease control. (author)

  20. Complementary role of MR imaging of ethmomaxillary sinus disease depicted at CT in cystic fibrosis

    International Nuclear Information System (INIS)

    To assess whether MR imaging can improve characterization of ethmomaxillary opacification diagnosed at CT in patients with cystic fibrosis (CF) in order to select patients that may benefit from functional endoscopic sinus surgery (FESS). Material and methods: Sixty-two CF patients (26 females and 36 males) aged 4-50 years (median 20 years) with ethmomaxillary sinus disease at CT underwent MR examination of the paranasal sinuses (coronal T1 and STIR sequences). FESS had been performed in 28 of the patients prior to this study. MR signal intensities were interpreted as mucosal thickening or infectious material, according to a previous study. Results: Three major maxillary sinus MR patterns could be distinguished: Air-filled, oval-shaped pus-filled, and streaky-shaped pus-filled sinus lumen. For air-filled maxillary sinuses with mucosal thickening, CT and MR imaging were diagnostically equivalent. Where CT showed homogeneous opacification of the maxillary sinuses, MR imaging differentiated between thickened mucosa and pus-filled areas. Patients who had undergone FESS most commonly had air-filled or streaky-shaped pus-filled maxillary sinus lumen. In non-operated patients oval-shaped pus-filled sinus lumen was most common and could occur without ethmoid disease. Conclusion: MR imaging of the paranasal sinuses can differentiate between infectious material and thickened mucosa and should be used to select CF patients with pus-filled areas that can be eradicated with FESS

  1. Bilateral SUNCT syndrome associated to chronic maxillary sinus disease / Síndrome SUNCT de ocorrência bilateral associada a sinusopatia maxilar crônica

    Scientific Electronic Library Online (English)

    Denis Bernardi, Bichuetti; Wellington Yugo, Yamaoka; João Ricardo Parrela, Bastos; Deusvenir de Souza, Carvalho.

    2006-06-01

    Full Text Available A síndrome SUNCT (short lasting unilateral neuralgiform headache with conjuntival injection and tearing) é definida como curtos ataques de dor periorbital unilateral, acompanhada de lacrimejamento e hiperemia conjuntival ipsilateral. Apresentamos um raro caso de SUNCT com dor bilateral com evolução [...] de cinco anos e iniciado após uma infecção de seio maxilar que evoluiu para sinusite crônica. Esta associação foi descrita em poucos casos de SUNCT, porém pouco esclarecida. O paciente era um homem de 58 anos que preencheu um diário de dor que demonstrou o típico padrão circadiano da síndrome, com pioras matinais e vespertinas, e apresentou melhora com uso de gabapentina. Submetido a cirurgia endoscópica funcional em seio maxilar e evoluiu com modulação da dor, sugerindo um potencial efeito benéfico após tratamento da sinusopatia.Na revisão de literatura encontramos 21 casos de SUNCT bilateral, cinco dos quais apresentavam história de sinusite; no entanto, a relação entre as duas entidades permanece ainda incerta. Abstract in english SUNCT syndrome (short lasting unilateral neuralgiform headache with conjuntival injection and tearing) is defined as short attacks of periorbital unilateral pain and accompanied by ipsilateral lacrimation and redness of the same eye. We present an unusual SUNCT case with bilateral pain that started [...] five years ago after an acute maxillary sinus infection that evolved to chronic sinusitis. This association has been described in few SUNCT cases, but its causal role remains uncertain. The patient was a 58 years old man that fulfilled a headache diary that showed the usual circadian pattern, worsening in the morning and afternoon, and responded to treatment with gabapentina. He was submitted to a functional endoscopic sinus surgery and evolved with milder pain. In a review of 21 patients, 5 had a past medical history of sinusitis, but the causal role of this association remained uncertain.

  2. Endoscopic Modified Medial Maxillectomy for Resection of an Inverted Papilloma Originating from the Entire Circumference of the Maxillary Sinus

    Science.gov (United States)

    Wada, Kota; Ishigaki, Takashi; Ida, Yutaro; Yamada, Yuki; Hosono, Sachiko; Edamatsu, Hideo

    2015-01-01

    For treatment of a sinonasal inverted papilloma (IP), it is essential to have a definite diagnosis, to identify its origin by computed tomography (CT) and magnetic resonance imaging (MRI), and to select the appropriate surgical approach based on the staging system proposed by Krouse. Recently, a new surgical approach named endoscopic modified medial maxillectomy (EMMM) was proposed. This approach can preserve the inferior turbinate and nasolacrimal duct. We successfully treated sinonasal IP with EMMM in a 71-year-old female patient. In this patient, the sinonasal IP originated from the entire circumference of the maxillary sinus. EMMM is not a difficult procedure and provides good visibility of the operative field. Lacrimation and empty nose syndrome do not occur postoperatively as the nasolacrimal duct and inferior turbinate are preserved. EMMM is considered to be a very favorable approach for treatment of sinonasal IP. PMID:26146581

  3. Repair and prevention of cerebrospinal fluid leakage in transsphenoidal surgery: a sphenoid sinus mucosa technique.

    Science.gov (United States)

    Amano, Kosaku; Hori, Tomokatsu; Kawamata, Takakazu; Okada, Yoshikazu

    2016-01-01

    Cerebrospinal fluid (CSF) leakage is a common but sometimes serious complication after transsphenoidal surgery (TSS). To avoid this postsurgical complication, we usually repair the CSF leaking area using an autologous material, such as fat, fascia, or muscle graft and sometimes nasonasal septal flap. In this report, we propose a technique using a novel autologous material, sphenoid sinus mucosa (SSM), to repair intraoperative CSF leakage or prevent it postoperatively. On 26 February 2007, we introduced the technique of using SSM to repair or prevent CSF leakage in TSS. Until 30th of June 2014, we performed 500 TSSs for patients with pituitary or parasellar lesions. They were 195 men and 305 women with a mean age of 48.5 years (range, 5-85 years). We used SSM for patching or suturing the arachnoid laceration or dural defect, in lieu of fat or fascia harvested from abdomen or thigh, or made pedicle flap of SSM instead of nasonasal septal flap to cover the sellar floor. Comparing the previous 539 cases not using these techniques before 26 February 2007, intraoperative CSF leakage increased from 49 to 69.4 % (p?

  4. Histological evaluation of healing after transalveolar maxillary sinus augmentation with bioglass and autogenous bone

    DEFF Research Database (Denmark)

    Stavropoulos, Andreas; Sima, Catalin

    2012-01-01

    OBJECTIVES: The aim was to evaluate histologically the outcome of a bioglass and autogenous bone (at 1 : 1 ratio) composite implantation for transalveolar sinus augmentation. METHODS: In 31 patients, during implant installation ca. 4 months after sinus augmentation, biopsies were harvested through the transalveolar osteotomy by means of a trephine bur and non-decalcified sections through the long axis of the cylinder were produced. After a strict selection process, taking into account the presurgical residual bone height and biopsy length, 8 and 15 biopsies representing the new tissues formed inside the sinus and the transalveolar osteotomy, respectively, qualified for analysis. The tissue fractions occupied by newly formed bone (mineralized tissue+bone marrow), soft connective tissue, residual biomaterial+empty spaces, and debris inside the sinus cavity or the transalveolar osteotomy were estimated. RESULTS: Bone and connective tissue fraction in the newly formed tissues inside the sinus cavity averaged 23.4 ± 13.2% and 54.1 ± 23.5%, respectively. Residual biomaterial, empty spaces, and debris averaged 1.9 ± 3.5%, 10.5 ± 6.3%, and 8.4 ± 14.5%, respectively. In the transalveolar osteotomy, bone and connective tissue fraction averaged 41.6 ± 14.3% and 46.1 ± 13%, respectively, while the amount of residual biomaterial, empty spaces, and debris was 2.8 ± 5%, 4.7 ± 1.9%, and 3.2 ± 2.6%, respectively. Statistically significant differences between the sinus cavity and the transalveolar osteotomy were found only for bone and empty spaces' values (P=0.02 and 0.04, respectively). CONCLUSION: Sinus augmentation with a bioglass and autogenous bone composite is compatible with bone formation that, in a short distance from the floor of the sinus, shows similar density as that reported previously for other commonly used bone substitutes. New bone fraction inside the transalveolar osteotomy was almost twice as much as in the sinus cavity, while the amount of residual biomaterial was much less than that inside the sinus.

  5. Bone dynamics in the upward direction after a maxillary sinus floor elevation procedure: serial segmentation using synchrotron radiation micro-computed tomography

    Directory of Open Access Journals (Sweden)

    Seo SJ

    2015-08-01

    Full Text Available Seung-Jun Seo,1,* Chung Wung Bark,2,* Jae-Hong Lim,1 Yong-Gun Kim3 1Industrial Technology Convergence Center, Pohang Accelerator Laboratory, POSTECH, Pohang, Gyeongbuk, 2Department of Electrical Engineering, Gachon University, Seongnam, 3Department of Periodontology, School of Dentistry, Kyungpook National University, Daegu, Republic of Korea *These authors contributed equally to this work Objective: Maxillary sinus floor augmentation has been shown to be the most predictable surgical technique for enhancing the bone volume in the posterior area of the maxilla. The purpose of this study was to analyze the serial slice image segmentation of newly formed bone and bone substitutes after sinus floor elevation using synchrotron radiation X-ray micro-computed tomography (SR-µCT.Materials and methods: Bone biopsy specimens were collected after 6 months of sinus floor augmentation. From the six bone biopsy specimens, the cross-sectional images at every 8 µm along the apical direction from the inferior border using serial segmentation from three-dimensional reconstructed X-ray images were analyzed. The amount of new bone and bone substitutes were measured at each slicing image (300–430 images per specimen.Results: The bone dynamics between the new bone and bone substitutes along the inferior–superior direction in humans after maxillary sinus floor elevation (MSFE were analyzed using the whole sample region. Although these observations suggest that the specimens are structurally inhomogeneous, sinus floor elevation was confirmed to be a reliable surgical procedure for increasing the amount of bone.Conclusion: SR-µCT is highly effective for obtaining high-resolution images. An analysis of biological specimens using SR-µCT is quite reliable and this technique will be an important tool in the wide field of tissue engineering. Keywords: maxillary sinus floor elevation, synchrotron radiation, micro-computed tomography, serial segmentation, new bone formation

  6. Bone-to-implant contact after maxillary sinus floor augmentation with Bio-Oss and autogenous bone in different ratios in mini pigs

    DEFF Research Database (Denmark)

    Jensen, Thomas; Schou, Søren; Gundersen, Hans Jørgen G; Forman, Julie Lyng; Terheyden, Hendrik; Holmstrup, Palle

    2013-01-01

    OBJECTIVES: The objective was to test the hypotheses: (i) no differences in bone-to-implant contact formation, and (ii) no differences between the use of autogenous mandibular or iliac bone grafts, when autogenous bone, Bio-Oss mixed with autogenous bone, or Bio-Oss is used as graft for the maxillary sinus floor augmentation. MATERIAL AND METHODS: Bilateral sinus floor augmentation was performed in 40 mini pigs with: (A) 100% autogenous bone, (B) 75% autogenous bone and 25% Bio-Oss, (C) 50% auto...

  7. Maxillary sinus augmentation: collagen membrane over the osteotomy window. A pilot study

    Directory of Open Access Journals (Sweden)

    F.S. Marchionni

    2015-03-01

    Full Text Available Aim Implant rehabilitation has become a very reliable and safe procedure. However, in some cases, a small amount of bone could make implant surgery extremely difficult or even impossible. Hence, a surgical technique to augment sinus floor has been developed and improved. Nevertheless, there is still controversy over the use of a membrane over the osteotomy window. Therefore, the aim of this study was to investigate whether the use of a membrane could be beneficial in sinus floor augmentation. Materials and methods A group of 12 patients requiring sinus floor lift were recruited. The patients were randomly allocated to either control group (membrane or test group (no membrane and only one sinus for patient was augmented. After 6 months, a bone biopsy was harvested from the lateral window to be processed for histological analysis. Results The mean amount of newly formed bone in test group was 28.0±19.5%, the connective tissue accounted for a mean value of 59.2±15.6%, while 12.8±12.6% was the amount of residual graft particles. In the membrane group the newly formed bone counted for a mean value of 30.4±15.8%, the mean quantity of connective tissue was 50.3±18.9% and about residual graft particles a mean value of 18.2±20.4% was registered. Conclusion According to our data, the use of a membrane over the lateral bone wall in sinus lift surgery does not significantly influence healing. However, the membrane could influence the residual particles resorption rate as well as soft tissue ingrowth.

  8. The use of injectable sonication-induced silk hydrogel for VEGF165 and BMP-2 delivery for elevation of the maxillary sinus floor

    OpenAIRE

    Zhang, WenJie; Wang, Xiuli; Wang, Shaoyi; Zhao, Jun; Xu, Lianyi; Zhu, Chao; Zeng, Deliang; CHEN, JAKE; Zhang, Zhiyuan; Kaplan, David L.; Jiang, Xinquan

    2011-01-01

    Sonication-induced silk hydrogels were previously prepared as an injectable bone replacement biomaterial, with a need to improve osteogenic features. Vascular endothelial growth factor (VEGF165) and bone morphogenic protein-2 (BMP-2) are key regulators of angiogenesis and osteogenesis, respectively, during bone regeneration. Therefore, the present study aimed at evaluating in situ forming silk hydrogels as a vehicle to encapsulate dual factors for rabbit maxillary sinus floor augmentation. So...

  9. Volumetric changes of the graft after maxillary sinus floor augmentation with Bio-Oss and autogenous bone in different ratios: a radiographic study in minipigs

    DEFF Research Database (Denmark)

    Jensen, Thomas; Schou, SØren

    2012-01-01

    Objective: The objective of the present study was to learn about the volumetric changes of the graft after maxillary sinus floor augmentation with Bio-Oss and autogenous bone from the iliac crest or the mandible in different ratios in minipigs. Material and methods: Bilateral maxillary sinus floor augmentation was performed in 40 minipigs with: (A) 100% autogenous bone, (B) 75% autogenous bone and 25% Bio-Oss, (C) 50% autogenous bone and 50% Bio-Oss, (D) 25% autogenous bone and 75% Bio-Oss, and (E) 100% Bio-Oss. The autogenous bone graft was harvested from the iliac crest or the mandible and the graft composition was selected at random and placed concomitant with implant placement. Computed tomographies of the maxillary sinuses were obtained preoperatively, immediately postoperatively, and at euthanasia after 12 weeks. The volumetric changes of the graft were estimated using the Cavalieri principle and expressed as mean percentage with a 95% confidence interval (CI). Results: The mean volume of the graft was reduced by (A) 65% (95% CI: 60-70%), (B) 38% (95% CI: 35-41%), (C) 23% (95% CI: 21-25%), (D) 16% (95% CI: 12-21%), and (E) 6% (95% CI: 4-8%). The volumetric reduction was significantly influenced by the ratio of Bio-Oss and autogenous bone (P

  10. Volumetric changes of the graft after maxillary sinus floor augmentation with Bio-Oss and autogenous bone in different ratios : a radiographic study in minipigs

    DEFF Research Database (Denmark)

    Jensen, Thomas; Schou, SØren

    2012-01-01

    Objective: The objective of the present study was to learn about the volumetric changes of the graft after maxillary sinus floor augmentation with Bio-Oss and autogenous bone from the iliac crest or the mandible in different ratios in minipigs. Material and methods: Bilateral maxillary sinus floor augmentation was performed in 40 minipigs with: (A) 100% autogenous bone, (B) 75% autogenous bone and 25% Bio-Oss, (C) 50% autogenous bone and 50% Bio-Oss, (D) 25% autogenous bone and 75% Bio-Oss, and (E) 100% Bio-Oss. The autogenous bone graft was harvested from the iliac crest or the mandible and the graft composition was selected at random and placed concomitant with implant placement. Computed tomographies of the maxillary sinuses were obtained preoperatively, immediately postoperatively, and at euthanasia after 12 weeks. The volumetric changes of the graft were estimated using the Cavalieri principle and expressed as mean percentage with a 95% confidence interval (CI). Results: The mean volume of the graft was reduced by (A) 65% (95% CI: 60-70%), (B) 38% (95% CI: 35-41%), (C) 23% (95% CI: 21-25%), (D) 16% (95% CI: 12-21%), and (E) 6% (95% CI: 4-8%). The volumetric reduction was significantly influenced by the ratio of Bio-Oss and autogenous bone (P

  11. Effect of LCD monitor type and observer experience on diagnostic performance in soft-copy interpretations of the maxillary sinus on panoramic radiographs

    International Nuclear Information System (INIS)

    The aim of this study was to evaluate the effect of liquid crystal display (LCD) monitor type and observer experience on the diagnostic performance in soft-copy interpretations of maxillary sinus inflammatory lesions on panoramic radiographs. Ninety maxillary sinuses on panoramic images were grouped into negative and positive groups according to the presence of inflammatory lesions, using CT for confirmation. Monochrome and color LCDs were used. Six observers participated and ROC analysis was performed to evaluate the diagnostic performance. The reading time, fatigue score, and inter-/intra-observer agreements were assessed. The interpretation of maxillary sinus inflammatory lesions was affected by the LCD monitor type used and by the experience of the observer. The reading time was not significantly different, however the fatigue score was significantly different between two LCD monitors. Inter-observer agreement was relatively good in experienced observers, while the intra-observer agreement for all observers was good with monochrome LCD but not with color LCD. The less experienced observers showed lowered diagnostic ability with a general color LCD.

  12. Effect of LCD monitor type and observer experience on diagnostic performance in soft-copy interpretations of the maxillary sinus on panoramic radiographs

    Energy Technology Data Exchange (ETDEWEB)

    Kim, Tae Young; Choi, Jin Woo; Lee, Sam Sun; Huh, Kyung Hoe; Yi, Won Jin; Heo, Min Suk; Choi, Soon Chul [School of Dentistry, Seoul National University, Seoul (Korea, Republic of)

    2011-03-15

    The aim of this study was to evaluate the effect of liquid crystal display (LCD) monitor type and observer experience on the diagnostic performance in soft-copy interpretations of maxillary sinus inflammatory lesions on panoramic radiographs. Ninety maxillary sinuses on panoramic images were grouped into negative and positive groups according to the presence of inflammatory lesions, using CT for confirmation. Monochrome and color LCDs were used. Six observers participated and ROC analysis was performed to evaluate the diagnostic performance. The reading time, fatigue score, and inter-/intra-observer agreements were assessed. The interpretation of maxillary sinus inflammatory lesions was affected by the LCD monitor type used and by the experience of the observer. The reading time was not significantly different, however the fatigue score was significantly different between two LCD monitors. Inter-observer agreement was relatively good in experienced observers, while the intra-observer agreement for all observers was good with monochrome LCD but not with color LCD. The less experienced observers showed lowered diagnostic ability with a general color LCD.

  13. Squamous cell carcinoma of the maxillary sinus and the oral part of the upper jaw. Comparison of treatment results

    International Nuclear Information System (INIS)

    The treatment results were compared in 77 patients with maxillary sinus squamous cell carcinoma (MC) and 53 patients with squamous cell carcinoma arising from the oral part of the upper law (OC). Both sets of patients received radiotherapy alone, or radiotherapy combined with surgery and/or chemotherapy. Computerized tomography was useful for the definition of the treatment volume. Intraarterial chemotherapy was given in 89 of 130 patients and in these patients the total radiation dose was reduced by about 10 Gy. No difference was found in the 5-year survival rate between the MC (65%) and the OC (66%) groups. The cumulative incidence of local failure was higher in MC (36%) than in OC (26%), whereas the ultimate incidence of neck node metastasis was higher in OC (43%) than in MC patients (18%). Half of the inoperable patients (9/18) were older than 80 years and had contraindications to anaesthesia and major surgery. The local recurrence rate was high in the inoperable MC patients (6/8). Contralateral simus cancers occurred in 4 patients in the MC group. (orig.)

  14. The foramen and infraorbital nerve relating to the surgery for external access to the maxillary sinus (CALDWELL-LUC

    Directory of Open Access Journals (Sweden)

    Fabi, Ricardo Pereira

    2008-09-01

    Full Text Available Introduction: The infraorbital nerve and foramen are bilateral structures, located below the lower edge of orbit (1,2,5,9,10,11,12, and are important surgical parameters for external access to the maxillary sinus (CaldwellLuc, representing its upper limit (4, 13. Objective: Establishing a safe average distance between the first premolar tooth alveolus top up to the foramen and infraorbital nerve, during the CaldwellLuc surgery. Method: We have analyzed 32 formolized heads of Brazilian adult corpses, without distinction of age, sex and race, within the period of February through July 2004. Surgical approach was made by CaldwellLuc passage, up to the complete exposure of infraorbital nerve and foramen where we delineated an imaginary line from the top of the first premolar tooth alveolus up to the foramen, and measured by using a pachymeter. Results: The general average distance between the structures mentioned was of 3.34cm with standard deviation of 0.52cm. The greater distance found was of 4,5 cm and the minor was of 2.5 cm bilaterally. Conclusion: When we know this region safe distance surgical access, we find less damage to the innervation that causes less intense subjective and less persistent symptoms in the post-operative period.

  15. Extensive complex odontoma in the maxillary sinus: an uncommon presentation as a cause of chronic sinusitis / Extenso odontoma complexo em seio maxilar: uma apresentação incomum como causa de sinusite crônica

    Scientific Electronic Library Online (English)

    Cyntia Helena Pereira de, Carvalho; Diego do Amaral, Costa; Lélia Maria Guedes, Queiroz; José Ivo Q. do, Amaral; Adriano Rocha, Germano.

    Full Text Available OBJETIVO: Este estudo relata a apresentação de um extenso odontoma causando sinusite maxilar. DESCRIÇÃO DO CASO: Um homem de 25 anos ao exame clínico revelou assimetria facial discreta e exposição da lesão na cavidade oral. Os exames de imagem mostraram a presença de uma massa radiopaca bem definida [...] na maxila esquerda, medindo aproximadamente 7 cm e estava intimamente associado com o seio maxilar e a cavidade oral. A massa foi extirpada através de um acesso intra-oral, sob anestesia geral em ambiente hospitalar e enviada para estudo histopatológico, onde foi diagnosticada como odontoma complexo. O paciente está sob acompanhamento clínico e não mostra sinais de sinusite maxilar e fístula bucossinusal. CONCLUSÃO: O odontoma é uma lesão comum na clínica odontológica, mas pode, em alguns casos, se apresentar de forma agressiva levando a danos ao paciente, e desta forma, é necessária atenção do cirurgião dentista para o correto diagnóstico e tratamento. Abstract in english PURPOSE: This study reports a case of a extensive odontoma causing maxillary sinusitis. CASE DESCRIPTION: A 25-year-old man at clinical examination revealed discrete facial asymmetry and exposure of the lesion in the oral cavity. Imaging exams showed the presence of a well-defined radiopaque mass in [...] the left maxilla, measuring approximately 7 cm and was intimately associated with the maxillary sinus and oral cavity. The mass was excised through an intraoral access under general anesthesia in the hospital and sent for histopathology, which was diagnosed as complex odontoma. The patient is under clinical follow-up and shows no signs of maxillary sinusitis and no oral sinus fistula. CONCLUSION: The odontoma is a common injury in clinical dentistry, but in some aggressive cases may cause sequelae in the patient, thus, caution the dentist for proper diagnosis and treatment.

  16. Endoscopic sinus surgery in individuals with facial pain due to chronic maxillary sinusitis ? a functional controlled study / Cirurgia endoscópica de seio da face em indivíduos com dor facial devida a sinusite maxilar crônica ? um estudo funcional controlado

    Scientific Electronic Library Online (English)

    Giuseppe, Sanges; Mario, Gamerra; Gerardo, Sorrentino; Roberto De, Luca; Maddalena, Merone; Michele, Feleppa; Marcelo Eduardo, Bigal.

    2014-08-01

    Full Text Available Objetivo: Medir a pressão intrasinusal e a eficiência funcional do seio maxilar (EFSM) em indivíduos com dor facial crônica após cirurgia endoscópica maxilar conservadora ou convencional em comparação a pessoas normais. Método: A manometria do seio foi feita 5 vezes durante a inalação. Result [...] ados: A semelhança entre os valores das pressões comparando aqueles tratados com cirurgia minimamente invasiva e os controles foi notável, enquanto que na cirurgia tradicional houve diminuição significativa das pressões intrasinusais. A EFSM foi 100% nas três vezes testadas nos controles, de modo muito semelhante ao que foi observado naqueles submetidos a cirurgia minimamente invasiva (98,3%, 98,8%, e 98,0%) e significativamente diminuída naqueles submetidos a cirurgia convencional (48,8%, 52,1%, 48,5 %, p Abstract in english Objective: To measure the intra-sinus pressure and the maxillary sinus functional efficiency (MSFE) in individuals with chronic facial pain after conservative or conventional endoscopic maxillary surgery, as well as in controls. Method: Sinus manometry was performed 5 times during inhalation. [...] Results: The resemblance of pressure values comparing those treated with minimally invasive surgery and controls was remarkable, while traditional surgery significantly decreased intrasinusal pressures. The MSFE was 100% in the three tested times for controls, close to that in those submitted to minimally invasive surgery (98.3%, 98.8%, and 98.0%) and significantly impaired after conventional surgery (48.8%, 52.1%, 48.5 %, p

  17. Imaging characteristics of diffuse large cell extra nodal non-Hodgkin's lymphoma involving the palate and maxillary sinus: a case report

    Energy Technology Data Exchange (ETDEWEB)

    Nadendla, Lakshmi Kavitha; Meduri, Venkateswarlu; Paramkusam, Geetha [Kamineni Institute of Dental Sciences, Nalgonda (India)

    2012-06-15

    Non-Hodgkin's lymphomas are a group of highly diverse malignancies and have a strong tendency to affect organs and tissues that do not ordinarily contain lymphoid cells. Primary extra nodal lymphoma of the hard palate is rare. Here, we present a case of diffuse large B cell lymphoma in a 60-year-old male patient that manifested as slightly painful ulcerated growth on the edentulous right maxillary alveolar ridge extending onto the palate, closely resembling carcinoma of the alveolar ridge. Computed tomography images showed the involvement of the maxillary sinus and right nasal cavity, along with destruction of hard palate, superiorly extending into the orbit. This case report highlights the importance of imaging to evaluate the exact extent of such large malignant lesions, which is essential for treatment planning.

  18. Maxillary sinus floor augmentation with Bio-Oss or Bio-Oss mixed with autogenous bone as graft in animals: a systematic review

    DEFF Research Database (Denmark)

    Jensen, Thomas; Schou, S; Stavropoulos, A; Terheyden, H; Holmstrup, P

    2012-01-01

    The objective of the present systematic review was to test the hypothesis of no differences between the use of Bio-Oss or Bio-Oss mixed with autogenous bone as graft for maxillary sinus floor augmentation (MSFA) applying the lateral window technique, as evaluated in animals. A MEDLINE (PubMed), Embase, and Cochrane Library search in combination with a hand-search of relevant journals was conducted by including animal studies published in English from 1 January 1990 to 1 June 2010. The search pro...

  19. Maxillary sinus floor augmentation with Bio-Oss or Bio-Oss mixed with autogenous bone as graft: a systematic review

    DEFF Research Database (Denmark)

    Jensen, Thomas; Schou, Søren; Stavropoulos, Andreas; Terheyden, Hendrik; Holmstrup, Palle

    2012-01-01

    Aims: The objective of the present systematic review was to test the hypothesis of no differences in the implant treatment outcome when Bio-Oss or Bio-Oss mixed with autogenous bone is used as graft for the maxillary sinus floor augmentation (MSFA) applying the lateral window technique. Material and methods: A MEDLINE (PubMed) search in combination with a hand search of relevant journals was conducted by including human studies published in English from January 1, 1990 to June 1, 2010. The searc...

  20. Presencia y Distribución de Tabiques Intrasinusales en el Piso del Seno Maxilar / Prescence and Distribution of Intrasinusal Septa in the Maxillary Sinus Floor

    Scientific Electronic Library Online (English)

    Arnoldo, Hernández Caldera; Anette, Vistoso Monreal; Rodrigo, Hernández Quezada; Javier, Rojo Pereira.

    2011-12-01

    Full Text Available La pérdida de dientes superiores causa reabsorción del proceso alveolar y la neumatización del seno maxilar. La implantología oral ha permitido solucionar la perdida de dientes, sin embargo, cuando existe neumatización del seno maxilar, la disponibilidad ósea se ve disminuida, dificultando el proced [...] imiento implantologico. Para remediar esta situación se efectúa la técnica quirúrgica de levantamiento del piso del seno maxilar, la que puede tener complicaciones por la morfología interna del seno, específicamente por la presencia de septos intrasinusales. El objetivo de este estudio es verificar la presencia y distribución de los septos intrasinusales, debido a su importancia en técnicas quirúrgicas realizadas en implantología oral. Se realizó un estudio descriptivo, basado en el análisis visual de huesos maxilares aislados. De 65 huesos se seleccionaron 51(42 dentados y 9 edéntulos) que cumplían con determinados criterios de inclusión. La segunda parte del estudio consistió en dividir topográficamente el piso del seno en tres regiones: anterior a la cresta cigomato alveolar, en relación a ella, y posterior a la cresta. La observación de los septos fue realizado por un único examinador, asistido por un dispositivo USB, con 4 leds de alta luminiscencia. De los 51 maxilares analizados se obtuvo: 74,5%, presentaron al menos un septo intrasinusal, 25,4%, no presentaron septos visibles. Los maxilares que presentaron un único tabique correspondieron al 33,3% de la muestra, el 19,6 % de la muestra presento sólo dos tabiques, el 15,7% presentó tres tabiques, mientras que los maxilares que presentaron más de tres tabiques intrasinusales correspondieron sólo al 5,9%. Del total de tabiques encontrados (75 tabiques) el 42% se observó en la región anterior, 21% en la región de la cresta cigomato alveolar y el 37 % en la región posterior del seno maxilar. De los 42 maxilares en condición dentada el 88,1% presento tabiques intrasinusales, mientras que del total de los maxilares edéntulos (9) solo el 11% presento tabiques intrasinusales. Este estudio establece que un porcentaje importante de los huesos maxilares poseen septos intrasinusales que modifican la morfología del piso sinusal con una frecuencia y ubicación variable. Esta situación deberá ser considerada y evaluada mediante imagenología en la realización de técnicas quirúrgicas de elevación del piso del seno maxilar. Abstract in english The loss of upper teeth causes alveolar process resorption and maxilary sinus pneumatization. Oral implantology has solved these losses, however, when pneumatization of the maxillary sinus exists, bone availability is diminished, difficulting implantology procedure. To remedy this situation, the sur [...] gical technique of lifting the maxillary sinus floor is indicated, which can have complications because of the internal maxillary sinus morphology, specifically the presence of intrasinusal septa. The aim of this study is to verify the presence and distribution of intrasinusal septa, due to its importance in surgical techniques performed in oral implantology. We conducted a descriptive study, based on visual analysis of isolated maxilary bones. Of 65 bones, 51 (42 dentate and 9 edentulous)were selected that met certain inclusion criteria. The second part of the study was, to divide the sinus floor topographically into three regions: anterior to the zygomatic alveolar crest, in relation to it, and posterior to the crest. The observation of the septa was performed by a single examiner, assisted by a USB device with 4 high-luminance LEDs. Of the 51 maxillary analyzed obtained: 74.5% had at least one intrasinusal septum, 25.4% showed no visible septa. The maxilary bones that had a single septum corresponded to 33.3% of the sample, 19.6% of the sample had only two septa, 15.7% had three septa, while the maxillary bones that had more than three intrasinusal septa corresponded only to 5.9%. Of all septa found (75 septa) 42% was observed in the anterior region, 21% in the region of th

  1. Preparación pre protética para implantes dentales mediante elevación del seno maxilar. Presentación de un caso clínico / Pre-prosthetic preparation for dental implants through maxillary sinus lifting

    Scientific Electronic Library Online (English)

    Félix M, Blanco Mederos; María Teresa, Lima Reyna.

    2014-10-01

    Full Text Available La presencia de pacientes que acuden para su rehabilitación protésica mediante implantes osteointegrados en el maxilar posterior con dificultades es frecuente, debido a una disponibilidad ósea vertical insuficiente causada por la presencia del seno maxilar. Para solucionar la falta de altura ósea, s [...] e hace necesario aplicar procedimientos destinados a aumentar la cantidad de hueso en esta área, conocido como elevación del seno maxilar. El objetivo de este trabajo fue presentar un caso, con esta técnica y el uso de materiales de relleno, pues posibilita al implantólogo, la colocación de implantes de mayor longitud que influyen en el éxito del tratamiento. Abstract in english There are many patients assisting the consultation for prosthetic rehabilitation through bone-integrated implants in the posterior maxilla, due to an insufficient vertical bone availability caused by the presence of the maxillary sinus. To solve this lack of bone height, it is necessary to carry out [...] procedures aimed to increasing the bone quantity in this area; the procedure is known as maxillary sinus lifting. This paper’s aim was presenting a case of this technique application, using filling materials that make possible longer implants placement by the implantologist and have influence in the treatment success.

  2. Carcinoma de seno maxilar en paciente con liquen plano oral: presentación de un caso clínico / Maxillary sinus carcinoma in a patient with oral lichen planus: a case report

    Scientific Electronic Library Online (English)

    L.J., Grando; S.M.L., Fabro; I.B.S., Rath; M.I., Meurer; F.I., Daniel; G.V., Teixeira; M.L., Somacarrera.

    2013-08-01

    Full Text Available Mujer de 55 años de edad, fumadora, depresiva, con Liquen Plano Oral (LPO) de control clínico difícil, de más de 10 años de evolución. La paciente ha presentado períodos de remisión y exacerbación de las lesiones, de forma paralela presentó aumento de volumen intraoral en región maxilar izquierda, l [...] a superficie de la nueva lesión estaba ulcerada, y desprendía olor fétido en región alveolar sometida a exodoncias previas. El diagnóstico clínico inicial fue de una probable transformación maligna del LPO preexistente. Una biopsia incisional confirmó la presencia de carcinoma de células escamosas. Los exámenes tomográficos revelaron una amplia imagen destructiva dentro del seno maxilar, con zonas de erosión ósea en las estructuras adyacentes. Con la asociación de datos clínicos y de imagen llegamos al diagnóstico de carcinoma de células escamosas en seno maxilar. La paciente fue sometida a maxilectomía parcial y radioterapia adyuvante. Después de algunos meses, se manifestó la recidiva local con el agravamiento del cuadro clínico del paciente. Se instauró la quimioterapia paliativa adyuvante, sin éxito clínico. La paciente murió después de un año de tratamiento, debido a trombosis. Abstract in english Patient with difficult-to-manage oral lichen planus, with relapses and exacerbations over a 10-year period, presented with a large ulcerative and foul-smelling intraoral mass in the left maxillary region. The initial clinical diagnosis indicated squamous cell carcinoma with possible association with [...] previous history of lichen planus at the site. The incisional biopsy confirmed the presence of squamous cell carcinoma. The imaging exams revealed extensive involvement of the adjacent maxillary sinus cavity, with areas of bone erosion. The association of clinical, imaging and laboratory data indicated maxillary sinus carcinoma. The patient underwent maxillectomy and adjuvant radiation therapy. Local relapse and deterioration of symptoms occurred, and palliative chemotherapy was then used. The patient was refractory to chemotherapy and died one year later.

  3. Detection of Helicobacter Pylori in the lacrimal sac mucosa of the patients with primary acquired nasolacrimal duct obstruction

    OpenAIRE

    Negar Azarpira; Seyed Mohammad Bagher Abtahi; Naser Owji

    2011-01-01

    Helicobacter pylori have been detected in sinonasal mucosa in both normal and pathologic condition. The nasolacrimal duct is within the medial wall of maxillary sinus and open into the nasal cavity, so ascending colonization of nasolacrimal duct and lacrimal sac is possible. The aim of this study is to investigate the presence of H. pylori by polymerase chain (PCR) reaction in the nasal and lacrimal sac mucosa of the patients with primary acquired nas...

  4. Maxillary Sinus Septa Prevalence and Morphology: Computed Tomography Based Analysis / Prevalencia y Morfología del Septo del Seno Maxilar: Análisis Basado en Estudios de Tomografía Computadorizada

    Scientific Electronic Library Online (English)

    Magdalena, Malec; Tomasz, Smektala; Marcin, Tutak; Grzegorz, Trybek; Katarzyna, Sporniak-Tutak.

    2015-03-01

    Full Text Available El objetivo de este estudio fue determinar la prevalencia, ubicación y morfología del septo del seno maxilar, y en particular de las formas orientadas sagitalmente, que no pueden ser visualizadas con el uso de equipos convencionales de Rayos X en dos dimensiones. De esta manera, se busca ofrecer inf [...] ormación sobre el grupo potencial de pacientes, que serán sometidos a estudios de tomografía computarizada antes de la elevación del seno maxilar. El análisis se basó en 216 imágenes de archivo de tomografía computarizada. El criterio de exclusión fue la presencia de cualquier sospecha de patología en la región maxilar. La prevalencia de septos hallados en tomografía computarizada fue alta (49%) con una altura media de 5,44 mm. La incidencia de septos orientados sagitalmente, encontrados en estudios de Rayos X 2D fue del 10%, siendo la localización más frecuente la región del segundo molar. De acuerdo a los resultados obtenidos y respetando los principios de seguridad radiológica, los autores sugieren que la ortopantomografía de rayos X puede ser un examen radiológico suficiente antes de comenzar el procedimiento quirúrgico de implante en el área del seno maxilar. Abstract in english The aim of this study was to examine the prevalence, location and morphology of maxillary sinus septa, and in particular sagittally orientated forms, which cannot be visualized by classic 2D x-rays. Thereby authors would like to provide information about the potential patient group, to be referred f [...] or the computed tomography scan before sinus lift procedure. The analysis was based on 216 computed tomography archival images. The exclusion criterion was occurrence of any suspected pathology in the maxillary region. The septa prevalence that was investigated in computed tomography was high (49%) with the mean height of 5.44 mm. The incidence of sagittally orientated septa as a challenge in 2D x-rays was 10%, with the second molar region as the most frequent location. Based on the obtained results and radiation safety principles, the authors suggest that orthopantomogram x-ray may be a sufficient ancillary radiological examination before beginning preimplant surgical procedure in the area of the maxillary sinus.

  5. Maxillary sinus augmentation with bovine hydroxyapatite alone: a safe technique with predictable outcomes in patients with severe maxillary atrophy / Elevación del seno maxilar con hidroxiapatita bovina sola: una técnica segura con resultados predecibles en pacientes con atrofia maxilar grave

    Scientific Electronic Library Online (English)

    Ana María, López López; Paloma, Planells del Pozo; Cristina, Maza Muela; Santiago, Ochandiano Caicoya; Carlos, Navarro Cuéllar; José Ignacio, Salmerón Escobar.

    2015-06-01

    Full Text Available La elevación del seno es una técnica preprotésica para la rehabilitación del sector posterior atrofiado del maxilar con una prótesis de implantación. Analizamos retrospectivamente 34 casos consecutivos de elevación del seno maxilar con el empleo de tan solo hidroxiapatita bovina sola. La altura preq [...] uirúrgica era de 4 mm o menos en el 92 % de los casos. El porcentaje de éxitos de la elevación del seno maxilar con esta técnica fue del 100 %. Un 13,4 % de los implantes se colocaron inmediatamente, con un porcentaje de éxitos de la implantación del 93,9 %. Los implantes no osteointegrados se sustituyeron todos con éxito. El periodo de seguimiento fue de 1268 días. El porcentaje de éxitos obtenido con el empleo de hidroxiapatita bovina sola es similar al de otros tipos de materiales, al tiempo que se evita la morbilidad en el área donante de hueso autólogo. Abstract in english Sinus augmentation is a preprosthetic technique for rehabilitating posterior sector of the atrophied maxilla with implant-supported prosthesis. We retrospectively analyzed 34 consecutive sinus augmentations performed using only bovine hydroxyapatite. The presurgical height in 92 % of the cases was 4 [...] mm or less. The success rate of the maxillary sinus augmentation was 100 % for this technique. 13.4 % of the implants were placed immediately with a success rate of implants placement of 93.9 %. The non-osseointegrated implants were all successfully replaced. Follow-up period was 1268 days. The success rate obtained using bovine hydroxyapatite alone is similar to that using other types of materials, while avoids morbidity of the autologous bone donor area.

  6. Hemangioma cavernoso gigante de seno maxilar: Reporte de un caso y revisión de la literatura / Giant cavernous hemangioma of the maxillary sinus: Case report and literature review

    Scientific Electronic Library Online (English)

    Alfredo, Naser G; Arturo, Samith M; Carlos, Ríos D.

    2009-08-01

    Full Text Available Los hemangiomas son neoplasias vasculares benignas que se presentan de preferencia en la región cervicofacial, siendo raros en las fosas nasales y excepcionales en los senos paranasales, con pocos casos reportados. Se presenta un paciente de sexo masculino y 33 años de edad, que consultó por obstruc [...] ción nasal, aumento de volumen maxilar y exoftalmo izquierdo de 2 años de evolución. La tomografía computada con contraste mostraba una masa hipodensa con realce anular del contraste en maxilar izquierdo, con extensión a la cavidad nasal, con destrucción del piso de la órbita y la pared anterior del seno maxilar. Se tomó biopsia que se informó como hemangioma cavernoso, por lo que fue manejado con embolización y escleroterapia arterial supraselectiva previa a la resección. Se realizó una maxilectomía subtotal por abordaje de Weber-Ferguson, sin recidiva al seguimiento a 15 meses. Además se comparan los hallazgos y el manejo de nuestro paciente con revisiones extranjeras. Abstract in english Hemangiomas are benign vascular neoplasms that occur preferentially in the head and neck, being uncommon in the nasal cavities and exceptionally rare in the paranasal sinuses, with very few cases reported. We present the case of a 33 year old male, that consulted for nasal obstruction, maxillary enl [...] argement and left exophthalmos of 2 years of evolution. Contrast enhanced computed tomography showed a hypódense mass with a ring enhanced lesion in the left maxilla, extending to the nasal cavity, with orbital floor and anterior wall of the maxillary sinus destruction. A biopsy sample was informed as cavernous hemangioma. Accordingly, it was treated by supraselective arterial embolization and sclerotherapy previous to surgical resection. A subtotal maxillectomy was performed following the Weber-Ferguson approach, with no recidives after a 15 month follow-up. In addition, we compare our findings and patient management with those reviewed in the literature.

  7. Maxillary sinus floor augmentation with Bio-Oss or Bio-Oss mixed with autogenous bone as graft: a systematic review

    DEFF Research Database (Denmark)

    Jensen, Thomas; Schou, SØren

    2012-01-01

    Aims: The objective of the present systematic review was to test the hypothesis of no differences in the implant treatment outcome when Bio-Oss or Bio-Oss mixed with autogenous bone is used as graft for the maxillary sinus floor augmentation (MSFA) applying the lateral window technique. Material and methods: A MEDLINE (PubMed) search in combination with a hand search of relevant journals was conducted by including human studies published in English from January 1, 1990 to June 1, 2010. The search provided 879 titles and 35 studies fulfilled the inclusion criteria. Considerable variation in the included studies prevented meta-analysis from being performed and no long-term study comparing MSFA with the two treatment modalities was identified. Also, the survival of suprastructures after the two augmentation procedures was not compared within the same study. Results: The 1-year implant survival was compared in one study demonstrating no statistically significant difference. The implant survival was 96% with Bio-Oss and 94% with a mixture of 80% Bio-Oss and 20% autogenous mandibular bone. Addition of a limited amount of autogenous bone to Bio-Oss seemed not to increase the amount of new bone formation and bone-to-implant contact compared with Bio-Oss. Conclusions: Therefore, the hypothesis of no differences between the use of Bio-Oss or Bio-Oss mixed with autogenous bone as graft for MSFA could neither be confirmed nor rejected. To cite this article: Jensen T, Schou S, Stavropoulos A, Terheyden H, Holmstrup P. Maxillary sinus floor augmentation with Bio-Oss or Bio-Oss mixed with autogenous bone as graft: a systematic review. Clin. Oral Impl. Res. xx, 2011; 000-000 doi: 10.1111/j.1600-0501.2011.02168.x.

  8. Elevación de seno maxilar: Análisis clínico de nuestra experiencia en más de 100 casos / Clinical analysis of our experience in over 100 cases of maxillary sinus lift

    Scientific Electronic Library Online (English)

    Gui-Youn, Cho-Lee; L., Naval-Gías; M., Mancha de la Plata; J., Sastre-Pérez; A.L., Capote-Moreno; M.F., Muñoz-Guerra; F.J., Rodríguez-Campo.

    2009-08-01

    Full Text Available Objetivos: La elevación de seno maxilar es uno de los procedimientos más versátiles en cirugía oral, de modo que hay descritos diversos abordajes, tipos de injertos, posibilidad de asociar otras técnicas preprotésicas y colocar implantes de manera simultánea o diferida, dependiendo de la altura ósea [...] inicial. Nuestro propósito es comunicar nuestra experiencia después de intervenir 131 casos. Materiales y métodos: Se analizó una serie de 131 procedimientos llevados a cabo en 91 pacientes consecutivos, entre 1996 y 2007. La edad media fue de 50,43 años (23-69). El control radiológico pre y postoperatorio se realizó mediante ortopantomografía y TC dental. Se analizó la tasa de éxito implantario (implantes osteointegrados y cargados) comparando los distintos injertos, el hábito tabáquico, las patologías asociadas y la colocación simultánea o diferida de los implantes. Así mismo, el tiempo (meses) necesario para cargar la prótesis se ha comparado entre los diferentes tipos de injerto. Resultados: En las zonas aumentadas se colocaron un total de 228 implantes roscados. La altura preoperatoria media del suelo del seno fue de 6,59±2,11 mm y la postoperatoria de 14,57±2,33 mm. El seguimiento medio fue de 2,94 años (1-12). La tasa de éxito implantario global fue de 96,91%, no habiéndose encontrado diferencias significativas entre los distintos injertos, patologías asociadas o el hábito tabáquico. Conclusiones: En base a este análisis retrospectivo, se concluye que la elevación de seno es una técnica versátil, eficaz, segura y predecible; con una tasa de éxito implantario muy alta independiente del tipo de injerto, comorbilidad, hábito tabáquico y colocación simultánea o diferida de los implantes. El empleo de injerto óseo autólogo requiere un tiempo de espera para la carga protésica significativamente menor. Abstract in english Purpose: Maxillary sinus elevation surgery is one of the most versatile surgical procedures in maxillofacial surgery: there are various approaches to the sinus, different materials for sinus grafting, other preprosthetic procedures can be associated and the implants placement can be simultaneous or [...] delayed, depending on the initial bone height. The aim of this study was to demonstrate this versatility by means of reporting the clinical outcome of sinus augmentation surgery in 131 cases. Materials and Methods: 131 sinus augmentation procedures were undertaken on 91 consecutive patients (mean age 50,43 years (26-69)). The preoperative and postoperative radiological study was developed by means of orthopantomography and Dental-TC. The survival rate of implants, as measured by integration and succesfull loading, was compared between different graft materials, smoking/non-smoking patients, different groups of associated pathologies and simultaneous/delayed implants placement. The time (months) necessary for prosthesis loading was measured and compared between the different graft material groups. Results: 228 screw-type implants were placed in sinus lifted regions. The mean residual ridge height was 6,59±2,11 mm. The mean postsurgical ridge height was 14,57±2,33 mm. After a mean follow-up period of 2,94 years (range 1 to 12 years) the global implant survival rate was 96,91%. There were not significant differences between different bone grafts, associated comorbidity and smoking habits. Conclusions: On the basis of this retrospective study, it might be concluded that the sinus augmentation surgery is a very versatile procedure. Its efficacy and predictability in terms of implant survival rate is extremely high and independent on the bone graft material, surgical technique, associated morbility, smoking habit and immediate/delayed implant placement. The use of autologous bone requires less time to load the prosthesis.

  9. Elevación de seno maxilar: Análisis clínico de nuestra experiencia en más de 100 casos Clinical analysis of our experience in over 100 cases of maxillary sinus lift

    Directory of Open Access Journals (Sweden)

    Gui-Youn Cho-Lee

    2009-08-01

    Full Text Available Objetivos: La elevación de seno maxilar es uno de los procedimientos más versátiles en cirugía oral, de modo que hay descritos diversos abordajes, tipos de injertos, posibilidad de asociar otras técnicas preprotésicas y colocar implantes de manera simultánea o diferida, dependiendo de la altura ósea inicial. Nuestro propósito es comunicar nuestra experiencia después de intervenir 131 casos. Materiales y métodos: Se analizó una serie de 131 procedimientos llevados a cabo en 91 pacientes consecutivos, entre 1996 y 2007. La edad media fue de 50,43 años (23-69. El control radiológico pre y postoperatorio se realizó mediante ortopantomografía y TC dental. Se analizó la tasa de éxito implantario (implantes osteointegrados y cargados comparando los distintos injertos, el hábito tabáquico, las patologías asociadas y la colocación simultánea o diferida de los implantes. Así mismo, el tiempo (meses necesario para cargar la prótesis se ha comparado entre los diferentes tipos de injerto. Resultados: En las zonas aumentadas se colocaron un total de 228 implantes roscados. La altura preoperatoria media del suelo del seno fue de 6,59±2,11 mm y la postoperatoria de 14,57±2,33 mm. El seguimiento medio fue de 2,94 años (1-12. La tasa de éxito implantario global fue de 96,91%, no habiéndose encontrado diferencias significativas entre los distintos injertos, patologías asociadas o el hábito tabáquico. Conclusiones: En base a este análisis retrospectivo, se concluye que la elevación de seno es una técnica versátil, eficaz, segura y predecible; con una tasa de éxito implantario muy alta independiente del tipo de injerto, comorbilidad, hábito tabáquico y colocación simultánea o diferida de los implantes. El empleo de injerto óseo autólogo requiere un tiempo de espera para la carga protésica significativamente menor.Purpose: Maxillary sinus elevation surgery is one of the most versatile surgical procedures in maxillofacial surgery: there are various approaches to the sinus, different materials for sinus grafting, other preprosthetic procedures can be associated and the implants placement can be simultaneous or delayed, depending on the initial bone height. The aim of this study was to demonstrate this versatility by means of reporting the clinical outcome of sinus augmentation surgery in 131 cases. Materials and Methods: 131 sinus augmentation procedures were undertaken on 91 consecutive patients (mean age 50,43 years (26-69. The preoperative and postoperative radiological study was developed by means of orthopantomography and Dental-TC. The survival rate of implants, as measured by integration and succesfull loading, was compared between different graft materials, smoking/non-smoking patients, different groups of associated pathologies and simultaneous/delayed implants placement. The time (months necessary for prosthesis loading was measured and compared between the different graft material groups. Results: 228 screw-type implants were placed in sinus lifted regions. The mean residual ridge height was 6,59±2,11 mm. The mean postsurgical ridge height was 14,57±2,33 mm. After a mean follow-up period of 2,94 years (range 1 to 12 years the global implant survival rate was 96,91%. There were not significant differences between different bone grafts, associated comorbidity and smoking habits. Conclusions: On the basis of this retrospective study, it might be concluded that the sinus augmentation surgery is a very versatile procedure. Its efficacy and predictability in terms of implant survival rate is extremely high and independent on the bone graft material, surgical technique, associated morbility, smoking habit and immediate/delayed implant placement. The use of autologous bone requires less time to load the prosthesis.

  10. Bone-to-implant contact after maxillary sinus floor augmentation with Bio-Oss and autogenous bone in different ratios in mini pigs

    DEFF Research Database (Denmark)

    Jensen, Thomas; Schou, SØren

    2013-01-01

    OBJECTIVES: The objective was to test the hypotheses: (i) no differences in bone-to-implant contact formation, and (ii) no differences between the use of autogenous mandibular or iliac bone grafts, when autogenous bone, Bio-Oss mixed with autogenous bone, or Bio-Oss is used as graft for the maxillary sinus floor augmentation. MATERIAL AND METHODS: Bilateral sinus floor augmentation was performed in 40 mini pigs with: (A) 100% autogenous bone, (B) 75% autogenous bone and 25% Bio-Oss, (C) 50% autogenous bone and 50% Bio-Oss, (D) 25% autogenous bone and 75% Bio-Oss, or (E) 100% Bio-Oss. Autogenous bone was harvested from the iliac crest or the mandible and the graft composition was selected at random and placed concomitant with the implant placement. The animals were euthanized 12 weeks after surgery. Bone-to-implant contact was estimated by stereological methods and summarized as median percentage with 95% confidence interval (CI). Bone-to-implant contact formation was evaluated by fluorochrome labelling and assessed by median odds ratios (OR) with 95% (CI). RESULTS: Median bone-to-implant contact was: (A) 42.9% (95% CI: 32.1-54.5%), (B) 37.8% (95% CI: 27.1-49.9%), (C) 43.9% (95% CI: 32.6-55.9%), (D) 30.2% (95% CI: 21.6-40.3%), and (E) 13.9% (95% CI: 11.4-16.9%). Bone-to-implant contact was significantly higher for A, B, C, D as compared to E (P 

  11. Tercer molar superior retenido en seno maxilar. Presentación de un caso / Third Upper Molar Retained in Maxillary Sinus. Presentation of a Case

    Scientific Electronic Library Online (English)

    Alexis Andrés, Amador Velázquez; Hung Quevedo, Orlando Alberto; Deyanira, Menéndez Díaz.

    2015-03-01

    Full Text Available Se presentó una paciente de 38 años de edad, mestiza, la cual acudió a Consulta de Cirugía Maxilofacial del Hospital Lenin remitida del Servicio de Neurocirugía, que refirió ser objeto de varios estudios de cráneo (incluyendo TAC) por presentar cefaleas mantenidas de moderada a gran intensidad. Los [...] resultados de los estudios fueron negativos. Refirió que recibió tratamiento farmacológico para aliviar los síntomas dolorosos, además, describió otros signos y síntomas como: caída del cabello, afectaciones visuales del lado derecho (visión borrosa, molestias), dolor facial difuso y edema en hemicara derecha. Al examen físico nada a señalar, con rayos x de senos paranasales se diagnosticó la presencia de un tercer molar incluido en seno maxilar derecho. La paciente fue llevada al salón de forma electiva y mediante la técnica de Caldwell-Lud fue extraído dicho molar. La paciente evolucionó de manera favorable. Abstract in english A 38-year-old black, which came to Consultation of Maxillofacial Surgery at Lenin Hospital, from Neurosurgery Department was reported in this paper. The patient was referred to study due to be the subject of several studies of skull (including TAC) due to headaches maintained from moderate to high i [...] ntensity. The results of the studies were negative. The patient received drug treatment to relieve the painful symptoms also described other signs and symptoms such as hair loss, visual detriment to the right side (blurred vision, discomfort), diffuse facial pain and swelling in right side of the face. Physical examination revealed nothing to indicate, with sinus x-rays the presence of a third molar in the right maxillary sinus was diagnosed. The patient was taken to the room and through elective Caldwell-Lud technique, the molar was extracted. The patient progressed favorably.

  12. Plasmablastic Lymphoma of the Maxillary Sinus: Case Report of a Novel Treatment Approach of Concurrent Bortezomib and Intensity-Modulated Radiotherapy

    Directory of Open Access Journals (Sweden)

    Patrick J. Richard

    2015-02-01

    Full Text Available Plasmablastic lymphoma (PBL is an aggressive variant of diffuse large B-cell lymphoma and was initially described as affecting the oral cavity of patients with HIV. Recently, it has been better characterized through histopathology and case reports demonstrating that it may affect HIV-negative patients as well. In particular, elderly patients that have immunosenescence can develop PBL, and it may present in anatomic sites outside the oral cavity. Treatment typically consists of aggressive chemotherapy regimens, such as CHOP, EPOCH, or hyper-CVAD; however, elderly patients may not be able to tolerate such intense regimens. We present a case of an elderly man with PBL of the maxillary sinus treated with a unique regimen of concurrent bortezomib and intensity-modulated radiotherapy (IMRT. This treatment produced a significant, durable tumor response and was well tolerated. Bortezomib with IMRT could be considered an alternative to more intense chemotherapy regimens, particularly in elderly patients with PBL, although prospective studies are needed to further test the safety and efficacy.

  13. Maxillary sinus floor augmentation with Bio-Oss or Bio-Oss mixed with autogenous bone as graft in animals : a systematic review

    DEFF Research Database (Denmark)

    Jensen, T; Schou, S

    2012-01-01

    The objective of the present systematic review was to test the hypothesis of no differences between the use of Bio-Oss or Bio-Oss mixed with autogenous bone as graft for maxillary sinus floor augmentation (MSFA) applying the lateral window technique, as evaluated in animals. A MEDLINE (PubMed), Embase, and Cochrane Library search in combination with a hand-search of relevant journals was conducted by including animal studies published in English from 1 January 1990 to 1 June 2010. The search provided 879 titles and 14 studies fulfilled the inclusion criteria. The volumetric stability of the graft improved significantly with increased proportion of Bio-Oss. Bone regeneration, bone-to-implant contact (BIC), biomechanical implant test values, and biodegradation of Bio-Oss after MSFA with Bio-Oss or Bio-Oss mixed with autogenous bone have never been compared within the same study in animals. Thus, the hypothesis of no differences between the use of Bio-Oss and Bio-Oss mixed with autogenous bone as graft for MSFA could neither be confirmed nor rejected based on existing animal studies.

  14. Maxillary sinus floor augmentation with Bio-Oss or Bio-Oss mixed with autogenous bone as graft in animals: a systematic review

    DEFF Research Database (Denmark)

    Jensen, Thomas; Schou, S

    2012-01-01

    The objective of the present systematic review was to test the hypothesis of no differences between the use of Bio-Oss or Bio-Oss mixed with autogenous bone as graft for maxillary sinus floor augmentation (MSFA) applying the lateral window technique, as evaluated in animals. A MEDLINE (PubMed), Embase, and Cochrane Library search in combination with a hand-search of relevant journals was conducted by including animal studies published in English from 1 January 1990 to 1 June 2010. The search provided 879 titles and 14 studies fulfilled the inclusion criteria. The volumetric stability of the graft improved significantly with increased proportion of Bio-Oss. Bone regeneration, bone-to-implant contact (BIC), biomechanical implant test values, and biodegradation of Bio-Oss after MSFA with Bio-Oss or Bio-Oss mixed with autogenous bone have never been compared within the same study in animals. Thus, the hypothesis of no differences between the use of Bio-Oss and Bio-Oss mixed with autogenous bone as graft for MSFA could neither be confirmed nor rejected based on existing animal studies.

  15. Fate of a Bovine-Derived Xenograft in Maxillary Sinus Floor Elevation After 14 Years: Histologic and Radiologic Analysis.

    Science.gov (United States)

    Ayna, Mustafa; Açil, Yahya; Gulses, Aydin

    2015-01-01

    This report assesses the results following sinus floor augmentation performed 14 years previously in which bovine bone xenograft material was used without implant insertion. After sinus floor augmentation, using a 20:80 mixture of autogenous bone and inorganic bovine bone material (Bio-Oss), bone biopsy specimens were taken from the grafted site, processed with Donath's sawing and grinding technique, stained with toluidine blue, and mounted on high-sensitivity plates for histology and microradiography. Histologic and microradiographic analysis showed the ingrowth of newly formed bone into the graft with interspersed residual Bio-Oss granules. The percentage of Bio- Oss and newly formed bone was 10.18% and 9.32%, respectively, within a total surface area of 70.61 mm² at the site of the corresponding missing first molar, and the percentage of Bio-Oss and newly formed bone was 11.47% and 14.96%, respectively, within a total surface area of 63.92 mm² at the corresponding missing second molar. The newly formed bone was vital without signs of resorption. This study produced strong evidence that newly formed bone was distributed throughout the bone substitute material around all of its granules and that the grafted site consisted of vital bone even in its central parts. The differences in degradation rate and/or whether the effect of bone graft substitutes alone and/ or in combination with other types, shapes, and sizes of graft materials needs further clinical investigation, especially in regard to long-term changes. PMID:26133144

  16. The results of combined therapy malignant neoplasms of maxillary sinus at Oncology Center in Poznan; Ocena wynikow leczenia skojarzonego chorych na nowotwory zlosliwe zatoki szczekowej w materiale Wielkopolskiego Centrum Onkologii

    Energy Technology Data Exchange (ETDEWEB)

    Adamiak, E.; Cerkaska-Gluszak, B.; Gorny, A. [Wielkopolskie Centrum Onkologii im. M. Sklodowskiej-Curie, Poznan, (Poland)

    1994-12-31

    Between 1985-1989 22 patients with malignant neoplasma maxillary sinus have been treated. At the first stage the surgical resection of maxilla was performed. Most of the patients (77%) had histopathological diagnosis of carcinoma planoepitheliale, 13% carcinoma solidum and 4% carcinoma adenoides cysticum. All patients had adjuvant therapy by Co-60 irradiation. Single fraction dose of 2 Gy/T 5 times a week up to total dose of 60-70 Gy/T has been applied. In the follow-up period of minimum 36 months the free-symptoms survival rate of 18%. (author) 5 refs, 3 tabs, 1 fig

  17. Oncocytic Schneiderian Papilloma Presenting as an Intensely Hypermetabolic Lesion of the Maxillary Sinus on {sup 18}F-Fluorodeoxyglucose Positron Emission Tomography/CT: A Case Report and Literature Review

    Energy Technology Data Exchange (ETDEWEB)

    Lee, Sang Kwon; Rho, Byung Hak [Dept. of Radiology, Dongsan Medical Center, Keimyung University College of Medicine, Daegu (Korea, Republic of); Kwon, Sun Young [Dept. of Pathology, Dongsan Medical Center, Keimyung University College of Medicine, Daegu (Korea, Republic of)

    2011-11-15

    A 54-year-old man presented with an incidentally identified intensely hypermetabolic lesion (SUVmax: 22.2 g/mL) in the left maxillary sinus on {sup 18}F-fluorodeoxyglucose positron emission tomography/computed tomography ({sup 18}F-FDG PET/CT) performed for cancer screening. The mass was well circumscribed and showed solid enhancement on contrast-enhanced CT. Histological examination of the mass was consistent with oncocytic schneiderian papilloma. It is of prime importance to recognize that a sinonasal lesion with intense hypermetabolism on {sup 18}F-FDG PET/CT does not necessarily signify malignancy. Oncocytic schneiderian papilloma should be included in the differential diagnosis of an intensely hypermetabolic and solidly enhancing mass of the nasal cavities or paranasal sinuses.

  18. Papel da punção do seio maxilar no diagnóstico e no tratamento de pacientes com rinossinusite hospitalar / The role of maxillary sinus puncture on the diagnosis and treatment of patients with hospital-acquired rhinosinusitis

    Scientific Electronic Library Online (English)

    José Arruda, Mendes Neto; Viviane Maria, Guerreiro; Elcio Roldan, Hirai; Eduardo Macoto, Kosugi; Rodrigo de Paula, Santos; Luis Carlos, Gregório.

    2012-08-01

    Full Text Available A rinossinusite é uma das principais causas de febre em pacientes críticos e deve ser sistematicamente pesquisada. OBJETIVO: Avaliar o impacto da punção do seio maxilar à beira leito, no diagnóstico e no tratamento dos pacientes com rinossinusite infecciosa internados em Unidade de Terapia Intensiva [...] de um hospital universitário de alta complexidade. MATERIAIS E MÉTODOS: Estudo retrospectivo que avaliou os pacientes em ventilação mecânica com febre de origem indeterminada e sinais tomográficos de rinossinusite submetidos à punção do seio maxilar pelo meato inferior. RESULTADOS: A amostra total do estudo consistiu de 27 pacientes (70,3% do sexo masculino com média de idade 45,3 anos). Os diagnósticos de admissão mais frequentes na Unidade de Terapia Intensiva foram Trauma Crânio Encefálico e Acidente Vascular Cerebral. No exame tomográfico, os seios paranasais mais acometidos foram o maxilar, em 85,2%, e esfenoidal, em 74,1%. A secreção purulenta foi visualizada no meato médio em 30,7% das fossas nasais. Os microrganismos mais frequentes nos aspirados dos seios foram Pseudomonas aeruginosa e Acinetobacter baumannii. CONCLUSÃO: A punção do seio maxilar à beira leito demonstrou-se uma importante ferramenta diagnóstica e terapêutica nos pacientes de UTI com rinossinusite hospitalar, submetidos à ventilação mecânica invasiva. Abstract in english Rhinosinusitis is one of the most commom causes of fever of unknown origin in critically ill patients and should be systematically searched. OBJECTIVE: This study aims to evaluate the diagnostic and therapeutic effect of maxillary sinus puncture performed at the bedside in patients with infective rh [...] inosinusitis hospitalized in an Intensive Care Unit of a high complexity care hospital. MATERIALS AND METHODS: This retrospective study looks into patients on mechanical ventilation with fever of unknown origin and signs of rhinosinusitis on CT images who were submitted to inferior meatus maxillary sinus puncture. RESULTS: The total study sample consisted of 27 patients (70.3% male; mean age 45.3 years). The most common Intensive Care Unit admission diagnoses were head trauma and stroke. CT scans revealed the maxillary (85.2%) and sphenoid (74.1%) sinuses were the most involved paranasal sinuses. Middle meatus purulent drainage was seen in 30.7% of the nasal cavities. Fever was reduced in 70.4% of the patients after puncture (p

  19. Radiodiagnostics of maxillary osteomyelitis

    International Nuclear Information System (INIS)

    Osteomyelitis is defined as an inflammation or infection in bone tissues - cancellous bone, bone marrow, bone compacta and periosteum due to invasion of infection from surrounding tissues. Maxillary osteomyelitis is less common disease than osteomyelitis of mandible. This can be explained by anatomical structure of maxilla which is mainly composed of sinuses and thin bone lamellae. Such a structure allows rapid propagation of the infection to the surface. There have been examined and treated 70 patients with osteomyelitis of facial bones within past 15 years at Department of stomatology and maxillo-facial surgery of P.J. Safarik University in Kosice. Only four cases were diagnosed as maxillary osteomyelitis. The aim of this study was to mention the differences in anatomy and symptoms of acute and chronic stage of maxillary osteomyelitis and to give a detailed radiographic picture of this affliction. (authors)

  20. Maxillary ameloblastoma: Report of three cases

    OpenAIRE

    Sapundžiev Petar; Ilieva Neli

    2005-01-01

    The purpose of this report was to analyse surgical methods for treatment of maxillary ameloblastoma and present three cases from our clinical practice in the postoperative period from 1,5 to 3,5 years. We present three patients with maxillary ameloblastoma with different etiology - two male patients and one female child. The location of ameloblastoma next to the maxillary sinus and nasal cavity indicates long-term and asymptomatic growth and comprises difficulties in clinical and X - ray exam...

  1. Reconstrução do seio maxilar atrófico com enxerto autólogo de crista ilíaca: avaliação por tomografia computadorizada e radiografia panorâmica / Autologus crest iliac graft in the reconstruction of resorbed maxillary sinus: evaluation through computed tomography and panoramic radiography

    Scientific Electronic Library Online (English)

    André Luíz, Zétola; João Luiz, Carlini; Ricardo Pires de, Souza; Abrão, Rapoport.

    2002-02-01

    Full Text Available OBJETIVOS: As dificuldades para a utilização de implantes dentários osteointegrados em pacientes portadores de atrofia do seio maxilar justificaram o emprego de enxerto autólogo não vascularizado de crista ilíaca isolado ou associado à hidroxiapatita (HA) em 14 pacientes submetidos a 25 procedimento [...] s no Hospital das Nações, Curitiba, Paraná, portadores de atrofia do sinus maxilar. O objetivo foi avaliar comparativamente a precisão da tomografia computadorizada e da radiografia panorâmica, através da quantificação da neoformação óssea nesta estrutura. MÉTODOS: Foram selecionadas pacientes edentados, com altura óssea residual do rebordo gengival ao soalho do seio maxilar menor que 5mm. O enxerto medular de crista ilíaca fragmentada isolado ou misturado com HA foi colocado através da parede lateral no soalho atrófico da cuba maxilar por via submucosa. A avaliação quantitativa e qualitativa foi feita através da radiografia panorâmica e tomografia computadorizada, sendo utilizado na análise estatística a distribuição t de Student (prevalência de 0,05) para análise das variâncias, considerado que a leitura dos laudos radiológicos foi feita por dois especialistas, medindo a distância entre os pontos inferiores e superiores do enxerto no soalho do seio maxilar. RESULTADOS: Tivemos um ganho médio de 14,8mm em todos os procedimentos, com um erro maior que 3mm em 16 procedimentos (64%) e incorporação satisfatória do enxerto ósseo suficiente para futuro implante dentário. CONCLUSÕES: A tomografia computadorizada foi o método de escolha na avaliação qualitativa e quantitativa da incorporação de enxerto autólogo não vascularizado em seio maxilar atrófico. Abstract in english BACKGROUND:There are different methods to evaluate bone grafts in the maxillary sinus. Panoramic radiography is the most common one, even though assessment could be difficult. Occasionaly computerized tomography (CT)is another option but cost and radiation in excess should be considered. Our objecti [...] ve is to compare these two imaging methods. METHODS: Both panoramic radiogrphy and CT scan methods were used on 25 procedures in 14 patients on post-operative sinus lift with autogenous bone graft from the iliac crest. Two radiologists evaluated the quantity of the newly formed bone and the quality of the exam for each patient, through different imaging groups. RESULTS: The quantitative bone evaluation between the two types of exam showed a statistically significant difference (Student t-test=0,05) In some cases the difference was up to 14,8 mm between exams on the same patient, having an error of more than 3mm in 16 procedures (64%). CONCLUSIONS: It can be concluded that the quality of the image on the computerized tomography is superior and it is the most reliable method to determine the area of bone augmentation of the maxillary sinus after an antroplasty.

  2. Reconstrução do seio maxilar atrófico com enxerto autólogo de crista ilíaca: avaliação por tomografia computadorizada e radiografia panorâmica Autologus crest iliac graft in the reconstruction of resorbed maxillary sinus: evaluation through computed tomography and panoramic radiography

    Directory of Open Access Journals (Sweden)

    André Luíz Zétola

    2002-02-01

    Full Text Available OBJETIVOS: As dificuldades para a utilização de implantes dentários osteointegrados em pacientes portadores de atrofia do seio maxilar justificaram o emprego de enxerto autólogo não vascularizado de crista ilíaca isolado ou associado à hidroxiapatita (HA em 14 pacientes submetidos a 25 procedimentos no Hospital das Nações, Curitiba, Paraná, portadores de atrofia do sinus maxilar. O objetivo foi avaliar comparativamente a precisão da tomografia computadorizada e da radiografia panorâmica, através da quantificação da neoformação óssea nesta estrutura. MÉTODOS: Foram selecionadas pacientes edentados, com altura óssea residual do rebordo gengival ao soalho do seio maxilar menor que 5mm. O enxerto medular de crista ilíaca fragmentada isolado ou misturado com HA foi colocado através da parede lateral no soalho atrófico da cuba maxilar por via submucosa. A avaliação quantitativa e qualitativa foi feita através da radiografia panorâmica e tomografia computadorizada, sendo utilizado na análise estatística a distribuição t de Student (prevalência de 0,05 para análise das variâncias, considerado que a leitura dos laudos radiológicos foi feita por dois especialistas, medindo a distância entre os pontos inferiores e superiores do enxerto no soalho do seio maxilar. RESULTADOS: Tivemos um ganho médio de 14,8mm em todos os procedimentos, com um erro maior que 3mm em 16 procedimentos (64% e incorporação satisfatória do enxerto ósseo suficiente para futuro implante dentário. CONCLUSÕES: A tomografia computadorizada foi o método de escolha na avaliação qualitativa e quantitativa da incorporação de enxerto autólogo não vascularizado em seio maxilar atrófico.BACKGROUND:There are different methods to evaluate bone grafts in the maxillary sinus. Panoramic radiography is the most common one, even though assessment could be difficult. Occasionaly computerized tomography (CTis another option but cost and radiation in excess should be considered. Our objective is to compare these two imaging methods. METHODS: Both panoramic radiogrphy and CT scan methods were used on 25 procedures in 14 patients on post-operative sinus lift with autogenous bone graft from the iliac crest. Two radiologists evaluated the quantity of the newly formed bone and the quality of the exam for each patient, through different imaging groups. RESULTS: The quantitative bone evaluation between the two types of exam showed a statistically significant difference (Student t-test=0,05 In some cases the difference was up to 14,8 mm between exams on the same patient, having an error of more than 3mm in 16 procedures (64%. CONCLUSIONS: It can be concluded that the quality of the image on the computerized tomography is superior and it is the most reliable method to determine the area of bone augmentation of the maxillary sinus after an antroplasty.

  3. Unusual ocular manifestations of silent sinus syndrome

    Directory of Open Access Journals (Sweden)

    Fabricio Lopes da Fonseca

    2014-01-01

    Full Text Available Silent sinus syndrome is an acquired condition in which there is a gradual collapse of the orbital floor and inward retraction of the maxillary sinus (atelectasis of the maxillary sinus. This in turn may cause associated ocular occurrences of enophthalmos and hypotropia. This is a report of an 8 year-old boy with silent sinus syndrome and associated ocular motility disorders. The association between silent sinus syndrome and ocular motility disturbance has been recently described in the literature. However, this is an infrequent association, mainly in childhood.

  4. Comparison of Histopathological and CT Findings in Experimental Rabbit Sinusitis.

    Science.gov (United States)

    Ozcan, K Murat; Ozcan, Ibrahim; Selcuk, Adin; Akdogan, Ozgur; Gurgen, Seren Gulsen; Deren, Tagmac; Koparal, Suha; Ozogul, Candan; Dere, Huseyin

    2011-01-01

    The aim of this study was to investigate and compare histopathological and computerized tomographic (CT) findings of experimental acute sinusitis in an animal model. The noses of five healthy rabbits were inoculated with a gelatin sponge impregnated with a solution containing Staphylococcus aureus, and one healthy rabbit acted as the control. The animals were sacrificed on the tenth day, following the acquisition of paranasal CT scans. Specimens were obtained from the lateral nasal walls, and the ethmoid and maxillary sinuses of the animals for histopathological examination. Histopathological and CT findings were compared. Various degrees of epithelial disorganization, foci of ruptured epithelial cells, and inflammatory cell infiltration in the lamina propria were seen in the histopathological examinations of the five study rabbits, and mucosal thickening and soft tissue density were noted in their CTs. There was no correlation between the histopathological and CT findings. It was shown that CT did not reflect the acute changes in the sinus mucosa. Patients with chronic sinusitis must be evaluated for a chronic process. Computerized tomographic scans should not be obtained in acute sinusitis cases. In this way, both unnecessary radiation exposure and economic waste can be avoided. PMID:22319718

  5. Perforation of the sinus membrane during sinus floor elevation

    DEFF Research Database (Denmark)

    von Arx, Thomas; Fodich, Ivo; Bornstein, Michael M; Jensen, Simon S

    2014-01-01

    PURPOSE: To analyze the frequency of perforation of the sinus membrane during maxillary sinus floor elevation (SFE) and to assess possible risk factors. MATERIALS AND METHODS: Seventy-seven cases of SFE performed with a lateral window approach were evaluated retrospectively. Clinical and radiographic variables potentially influencing the risk of sinus membrane perforation were evaluated and divided into patient-related factors (age, sex, smoking habit); surgery-related factors (type of surgical ...

  6. Normal value of mucosal thickness of paranasal sinuses, as seen on brain MRI

    International Nuclear Information System (INIS)

    To evaluate incidentally observed thickened mucosa of paranasal sinuses on brain MRI of patients without evidence of sinusitis. We reviewed brain MRI of 82 adults aged over 20; 45 were males and 37 were females. Brain axial MRI was obtained from the hard palate with 8mm thickness and 2mm gap. The mucosal thickness of incidentally observed paranasal sinuses seen on brain MRI was measured at the mostly thickened portion by T2- and T1-weighted images. The mean mucosal thickness at the most thickened portion of paranasal sinuses, regardless of their location was 3.5mm with S.D. of 1.5mm. The mucosal thickening was observed more commonly in maxillary (79 patients, mean 3.0mm, S.D. 1.4mm) and ethmoid sinuses (80 patients, mean 2.7mm, S.D. 1.1mm) than in sphenoid (39 patients, mean 1.6mm, S.D. 1.4mm) or frontal sinuses (38 patients, mean 1.9mm, S.D. 1.4mm). Mucosal thickening of up to 6.5mm was a common finding on brain MRI of patients without evidence of sinusitis; accuracy was 95%

  7. Normal value of mucosal thickness of paranasal sinuses, as seen on brain MRI

    Energy Technology Data Exchange (ETDEWEB)

    Cheon, Byung Kook; Shin, Sang Bum; Cheon, Bong Jin; Kim, Seong Min; Kim, Jong Min; Oh, Kyung Seung; Jung, Gyoo Sik; Huh, Jin Do; Joh, Young Duk [Kosin Univ. College of Medicine, Seoul (Korea, Republic of)

    1997-02-01

    To evaluate incidentally observed thickened mucosa of paranasal sinuses on brain MRI of patients without evidence of sinusitis. We reviewed brain MRI of 82 adults aged over 20; 45 were males and 37 were females. Brain axial MRI was obtained from the hard palate with 8mm thickness and 2mm gap. The mucosal thickness of incidentally observed paranasal sinuses seen on brain MRI was measured at the mostly thickened portion by T2- and T1-weighted images. The mean mucosal thickness at the most thickened portion of paranasal sinuses, regardless of their location was 3.5mm with S.D. of 1.5mm. The mucosal thickening was observed more commonly in maxillary (79 patients, mean 3.0mm, S.D. 1.4mm) and ethmoid sinuses (80 patients, mean 2.7mm, S.D. 1.1mm) than in sphenoid (39 patients, mean 1.6mm, S.D. 1.4mm) or frontal sinuses (38 patients, mean 1.9mm, S.D. 1.4mm). Mucosal thickening of up to 6.5mm was a common finding on brain MRI of patients without evidence of sinusitis; accuracy was 95%.

  8. Non-Hodgkin lymphoma originating from the frontal sinus.

    Science.gov (United States)

    Haksever, Mehmet; Gündo?du, Ercan; Akduman, Davut; Haksever, Hülya; Karaca, Kemal; Ekici, Mehmet Ali; Solmaz, Fevzi

    2014-07-01

    Primary lymphoma of the paranasal sinuses is a rare entity. Most cases are reported to occur in the maxillary and ethmoid sinuses as well as the nasal cavity. Primary involvement of the frontal sinus is very rare. We report a 68-year-old man with a diagnosis of B-cell lymphoma (non-Hodgkin lymphoma) originating from his frontal sinus. PMID:25006942

  9. Bony anatomic variants of the paranasal sinuses and nasal septum. Comparison between normal and chronic sinusitis

    International Nuclear Information System (INIS)

    Agger nasi cells, concha bullosa, Haller's cells and deviation of the nasal septum were evaluated with coronal plane computerized tomographic (CT) scanning in patients with normal paranasal sinuses (44 cases) and patients with chronic sinusitis (91 cases). Agger nasi cells were present in 68 (50.4%) of cases. Concha bullosa was present in 39 cases (28.9%), Haller's cells were present in 15 cases (11.1%), and deviation of the nasal septum was present in 64 cases (47.4%). Haller's cells were more commonly encountered in cases with normal paranasal sinuses (20.5%), than in cases with chronic sinusitis (6.6%). Other bony structural variations were noted at a similar frequency in both groups. Each sinus (frontal sinus, ethmoid sinus, maxillary sinus and sphenoid sinus) of patients with chronic sinusitis was then evaluated separately. Agger nasi cells were observed more frequently in chronic frontal sinusitis and ethmoid sinusitis compared to subjects with normal sinuses. Concha bullosa was observed more frequently in cases with normal frontal sinuses and ethmoid sinuses than in cases of chronic frontal sinusitis and ethmoid sinusitis. Haller's cells and deviation of the nasal septum were observed at a similar frequency in both groups. Based on these results, it was thought that these bony structural variations sometimes disturbed the reopening of the normal ventilation and drainage pathways of the paranasal sinuses at the stage of acute sinusitis. These nasal ventilatory disturbances may predispose the patient to recurrent sinusitis, and may finally result in chronic sinusitis. (author)

  10. Cinco casos de elevación del seno maxilar con autoinjertos: Estudio clínico, radiológico y análisis con MEB / Five clinical cases of augmentation of the maxillary sinus with autogenous bone graft: A clinical, radiological study and analysis with SEM

    Scientific Electronic Library Online (English)

    Consuelo, Muñoz Muñoz; María de Nuria, Romero Olid; Manuel, Vallecillo Capilla.

    2002-04-01

    Full Text Available Introducción: Realizamos una evaluación clínica, radiológica y análisis con microscopio electrónico de barrido (MEB) de 5 casos de elevación del seno maxilar (unilateral y bilateral) con injerto autógeno procedente de la cresta ilíaca y de la sínfisis mentoniana. Pacientes y método: Se realizó un es [...] tudio observacional de seguimiento en 5 pacientes (2 hombres y 3 mujeres) al primer mes, sexto mes y al primer año de la colocación del injerto, en el cual se midieron una serie de parámetros clínicos y radiológicos. Este estudio se completó con el análisis del injerto mediante MEB. Resultados: El injerto ha sido viable, permitiendo la realización del tratamiento implantológico. Sin embargo ha habido sintomatología que ha variado según el paciente, siendo la inflamación y el dolor los síntomas más frecuentes. La reabsorción del injerto se ha mantenido con niveles inferiores al 30%, siendo menor en el injerto procedente de la sínfisis mentoniana. Histológicamente los mecanismos de formación y de remodelación del nuevo hueso se han producido satisfactoriamente. Conclusión: La elevación del seno maxilar con autoinjertos es un tratamiento factible que posibilita la colocación de implantes en pacientes con atrofia posterior del maxilar superior. Abstract in english Introduction: We report a clinical and radiological evaluation and analysis with SEM of 5 clinical cases of augmentation of the maxillary sinus (unilateral and bilateral) with autogenous bone graft harvested of the illiac crest and mandibular symphysis. Material and method: We carried out a retrospe [...] ctive study in 5 patients (2 males and 3 females) with a follow-up at first month, sixth month and first year after bone transplantation, and evaluated clinical and radiological parameters. This study was completed with an histological analysis of the bone graft using SEM. Results: The bone graft was successful, allowing the implant treatment. However, there have been variable symptoms depending on the patients, being the inflammation and the pain the more frequent symptoms. The resorption of the bone graft was maintained with levels lower than 30%, being lesser in the bone graft harvested of the symphysis. Histologically, the mechanism of the formation and remodelation of the new bone were carried out satisfactorily. Conclusions: The augmentation of the maxillary sinus with autogenous bone graft is a feasible treatment that allows the placement of implants in patients with atrophy in the posterior part of the maxilla.

  11. Avaliação histológica de hidroxiapatita sintética associada a fosfato de cálcio (?-TCP) utilizados em levantamento de assoalho de seio maxilar / Histological evaluation of biphasic hydroxyapatite associated to beta tricalcium phosphate (?-TCP) used in maxillary sinus lift

    Scientific Electronic Library Online (English)

    Luis Gustavo Jaime, Paiva; Aline Carvalho, Batista; Leandro Cardoso de, Carvalho; Robson Rodrigues, Garcia.

    2014-04-01

    Full Text Available Introdução: Quando a altura do osso alveolar residual é insuficiente na região posterior da maxila, a elevação do assoalho do seio maxilar visando a viabilizar a instalação de implantes dentários é um procedimento indicado. O enxerto autógeno (EA) de regiões intra ou extraorais é considerado o padr [...] ão ouro para esse procedimento. Novas opções de substitutos ósseos vêm surgindo, como o Straumann(r) BoneCeramic (BC) - 60% constituído de hidroxiapatita e 40% de ? tricálcio fosfato, 100% sintético -, sendo o material utilizado no presente trabalho. Objetivo: Avaliar e comparar histologicamente o comportamento deste substituto ósseo com o enxerto ósseo autógeno. Material e método: Dez pacientes saudáveis e parcialmente desdentados na região posterior da maxila foram submetidos à elevação do assoalho do seio maxilar previamente à instalação de implantes dentários osseointegráveis, sendo, destes, cinco com EA e cinco com BC. Após seis meses do tempo de integração do enxerto ósseo, as amostras foram coletadas por uma trefina e coradas em hematoxilina e eosina para microscopia. Resultado: Todos os implantes osseointegráveis apresentaram boa estabilidade primária. A análise histológica demonstrou tecido ósseo neoformado viável em quatro das cinco amostras do BC, além de um íntimo contato do tecido ósseo mineralizado recém-formado com as partículas do BC. Em uma amostra do BC, não foi observada formação de osso viável. O tecido ósseo formado a partir do EA e do BC apresentou uma característica histológica similar. Conclusão: O BC se mostrou um material adequado para a elevação do assoalho do seio maxilar previamente à instalação de implantes dentários osseointegráveis. Abstract in english Introduction: Sinus lift to permit insertion of implants when alveolar residual bone height is insufficient may be considered an effective procedure. The use of autogenous bone from intraoral or extraoral sources is considered as the gold standard for this procedure. New options of bone substitutes [...] have been emphasizing, such as Straumann(r) BoneCeramic (BC), consisting of 60% of hydroxyapatite and 40% of calcium phosphate, 100% synthetic material that was used in this work. Objective: This investigation was designed to evaluate and compare the behavior of a fully synthetic biphasic calcium phosphate (BCP) 60% hydroxyapatite and 40% of ?-tricalcium phosphate (Straumann(r) Bone-Ceramic) to the autogenous bone graft (ABG) in maxillary sinus floor elevation procedure prior to installation dental implants. Material and method: Ten healthy patients who were partially edentulous in the posterior maxilla were included in this study and submitted to a unilateral maxillary sinus floor elevation procedure, with grafting using either ABG (control group; 5 patients) or BCP (test group; 5 patients). After 6 months of healing implant sites were created and biopsies taken for histological analyses. Result: A primary stability was achieved with all dental implants after the biopsies. Histological investigation showed a viable new bone tissue formed in 4 of 5 BCP specimens. Also, showed close contact between new bone and BCP particles, in 4 of 5 specimens. In 1 of 5 BCP specimens no viable bone tissue was found. Both ABG and BCP produced similar amounts of newly formed bone, with similar histologic appearance. Conclusion: The results indicate that BCP is a suitable material for sinus augmentation for the placement of dental implants.

  12. Ameloblastoma of the frontal sinuses: a rare site for recurrence

    OpenAIRE

    Coombs, AC

    2011-01-01

    Ameloblastoma is a benign odontogenic tumour which commonly recurs after initial surgery; most recurrences occur at the site of the primary tumour. A rare case of recurrence of a maxillary ameloblastoma in the frontal sinuses is presented. To our knowledge there are no previous reports in the literature of a benign maxillary ameloblastoma extending into the frontal sinuses.

  13. Normal development of paranasal sinuses in children: A CT study

    International Nuclear Information System (INIS)

    To evaluate the normal development of the paranasal sinuses in children with CT, authors prospectively studied with brain CT scans of 260 children without known sinus disease, ranging image from 7 days to 16 years. Maximal anteroposterior and transverse diameters(mm) and maximal cross- sectional area(mm2) of both sides of the maxillary sinus were measured with the aid of computer device. As to the ethmoidal and spheroidal sinuses, we simply documented the presence of the aplastic ethmoidal sinus and calculated the age-incidence of the spheroidal sinus pneumatization, respectively.There noted three phases in the development of the maxillary sinus. The anteroposterior and transverse diameters of the maxillary sinus increased nearly in parallel. The former was always greater than the latter. In no cases was the edathamil sinus aplastic and almost all sinuses were pneumatized even in infants as early as 7 old days. CT identified the conchal pattern of sphenoidal sinus pneumatization infants as early as 11 days old. Sphenoidal sinus pneumatization was seen in 38% of the children under the age of 1 year, 82% of the children between the age of 1 and 2 years, and almost all children older than 2 years. The anteroposterior and transverse diameters of the maxillary sinus seem to reach the adult size by 8 years of age, and the conchal pattern of sphemoidal sinus pneumatization can be recognized earlier with CT than on the plain radiographs

  14. Alternativas a la elevación de seno maxilar: rehabilitación del sector posterior del maxilar atrófico mediante implantes pterigoideos / Alternatives to maxillary sinus lift: posterior area of the atrophic maxilla rehabilitation by means pterigoideal implants

    Scientific Electronic Library Online (English)

    X., Rodríguez-Ciurana; X., Vela Nebot; V., Mendez; M., Segalá.

    2008-12-01

    Full Text Available El primer y segundo molar son los dientes que se pierden más a menudo debido a la enfermedad periodontal y al exceso de fuerzas oclusales. A pesar de la frecuencia del edentulismo parcial del sector posterior raramente se ubican los implantes más allá de los premolares debido al aumento del índice d [...] e fallos. El escaso volumen óseo y la pobre mineralización del sector posterior del maxilar comprometen la viabilidad de las rehabilitaciones con implantes a largo plazo. Además, la cresta ósea a nivel del seno maxilar, en el maxilar atrófico, no suele permitir el anclaje de implantes de 10 mm. Se han propuesto varias técnicas para rehabilitar el sector posterior del maxilar atrófico: implantes cortos, extensiones protésicas, injerto sinusal, implante cigomático. El implante pterigoideo es otro de los posibles tratamientos para rehabilitar el sector posterior del maxilar atrófico. Anclado en el hueso cortical de la apófisis del esfenoides el implante pterigoideo evita la necesidad de injertar o utilizar extensiones protésicas. El objetivo de este artículo es analizar las indicaciones, la técnica, complicaciones y supervivencia del implante pterigoideo en el sector posterior del maxilar atrófico. Abstract in english The first and second molar are the teeth most commonly lost in the maxilla, mainly due to periodontal disease and excessive occlusal force. 1 Although partial edentulism of the posterior maxilla is common, implants are seldom placed distal to the premolars because failure rates in the posterior maxi [...] lla have historically been high. Poor volume and low density of bone are the worst conditions for long-term anchorage in the maxilla. 7 Moreover, bone under the maxillary sinus, in the atrophic maxilla, is usually insufficient to enable placement of 10 mm implants. Several techniques have been proposed to restore the atrophic posterior maxilla: short implants, prosthetic cantilevers, sinus bone graft, zigomatic fixtures. Pterygoid implants are other possible treatment of the atrophic edentulous posterior maxilla. Anchored in the cortical bone of the pterygoid process, such implants avoid the need for bone grafting and/or prosthetic cantilevering. The aim of this article is to analyst indications, surgical procedure, complications and survival rates of pterygoid implants in the posterior atrophic maxilla.

  15. Alternativas a la elevación de seno maxilar: rehabilitación del sector posterior del maxilar atrófico mediante implantes pterigoideos Alternatives to maxillary sinus lift: posterior area of the atrophic maxilla rehabilitation by means pterigoideal implants

    Directory of Open Access Journals (Sweden)

    X. Rodríguez-Ciurana

    2008-12-01

    Full Text Available El primer y segundo molar son los dientes que se pierden más a menudo debido a la enfermedad periodontal y al exceso de fuerzas oclusales. A pesar de la frecuencia del edentulismo parcial del sector posterior raramente se ubican los implantes más allá de los premolares debido al aumento del índice de fallos. El escaso volumen óseo y la pobre mineralización del sector posterior del maxilar comprometen la viabilidad de las rehabilitaciones con implantes a largo plazo. Además, la cresta ósea a nivel del seno maxilar, en el maxilar atrófico, no suele permitir el anclaje de implantes de 10 mm. Se han propuesto varias técnicas para rehabilitar el sector posterior del maxilar atrófico: implantes cortos, extensiones protésicas, injerto sinusal, implante cigomático. El implante pterigoideo es otro de los posibles tratamientos para rehabilitar el sector posterior del maxilar atrófico. Anclado en el hueso cortical de la apófisis del esfenoides el implante pterigoideo evita la necesidad de injertar o utilizar extensiones protésicas. El objetivo de este artículo es analizar las indicaciones, la técnica, complicaciones y supervivencia del implante pterigoideo en el sector posterior del maxilar atrófico.The first and second molar are the teeth most commonly lost in the maxilla, mainly due to periodontal disease and excessive occlusal force. 1 Although partial edentulism of the posterior maxilla is common, implants are seldom placed distal to the premolars because failure rates in the posterior maxilla have historically been high. Poor volume and low density of bone are the worst conditions for long-term anchorage in the maxilla. 7 Moreover, bone under the maxillary sinus, in the atrophic maxilla, is usually insufficient to enable placement of 10 mm implants. Several techniques have been proposed to restore the atrophic posterior maxilla: short implants, prosthetic cantilevers, sinus bone graft, zigomatic fixtures. Pterygoid implants are other possible treatment of the atrophic edentulous posterior maxilla. Anchored in the cortical bone of the pterygoid process, such implants avoid the need for bone grafting and/or prosthetic cantilevering. The aim of this article is to analyst indications, surgical procedure, complications and survival rates of pterygoid implants in the posterior atrophic maxilla.

  16. VALIDACIÓN DE LA PANORÁMICA TOMOGRÁFICA COMO HERRAMIENTA DIAGNÓSTICA PARA PATOLOGÍA DEL SENO MAXILAR / VALIDATION OF PANORAMIC TOMOGRAPHY AS A TOOL TO DIAGNOSE MAXILLARY SINUS PATHOLOGIES

    Scientific Electronic Library Online (English)

    José S., Domínguez Mejía; Germán, Aguilar Méndez; Lisandro, Guerra Restrepo; Natalia, Contreras Gómez; Ana M., Aristizábal.

    2013-06-01

    Full Text Available [...] Abstract in english INTRODUCCIÓN: la imaginología es importante en la valoración diagnóstica y una herramienta útil para la selección de procedimientos en pacientes de los que se sospecha patología maxilofacial. Entre las diferentes modalidades imaginológicas maxilofaciales se encuentran la radiografía panorámica y la [...] tomografía computarizada Cone beam, desarrollada como alternativa a la tomografía convencional, actualmente descrita como Gold standard para imaginología del área oral y maxilofacial. MÉTODOS:observación por dos evaluadores previamente calibrados de 100 tomografías Cone beam y 100 panorámicas tomográficas de pacientes seleccionados aleatoriamente; aplicación de análisis univariado, medidas de tendencia central, y definición de la sensibilidad, especificidad, valor predictivo positivo y negativo en tablas específicas de 2 x 2 aplicando el estudio prueba de una prueba. RESULTADOS: los resultados obtenidos muestran que la panorámica tomográfica tipo Cone beam como prueba diagnóstica frente a la tomografía computarizada Cone beam para evaluar imágenes compatibles con patología sinusal (pólipo, quiste y engrosamiento mucoso) tiene sensibilidad y especificidad variable dependiendo del tipo de patología sinusal, con nivel de confianza del 95% y con coeficiente de kappa con valor de 1 para las tomografías axiales computarizadas y de 0,94-1,0 para la panorámica tomográfica tipo Cone beam. CONCLUSIONES: la panorámica tomográfica Cone beam es lo suficientemente sensible y específica para ser utilizada como herramienta diagnóstica en patología de seno maxilar.

  17. Tumor odontogênico cístico calcificante com proliferação ameloblastomosa em seio maxilar / Calcifying cystic odontogenic tumor with ameloblastoma proliferation in the maxillary sinus

    Scientific Electronic Library Online (English)

    Maria Carolina Gonçalves, Carnasciali; Thays Almeida, Alfaya; Patricia Nivoloni, Tannure; Ruth Tramontani, Ramos; Roberta, Barcelos; Cresus Vinicius Depes, Gouvêa.

    2012-08-01

    Full Text Available O tumor odontogênico cístico calcificante (TOCC) com proliferação ameloblastomosa é uma variante rara entre os cistos maxilares. Este trabalho objetiva apresentar o relato clínico de um paciente do sexo masculino, 18 anos de idade, que apresentava aumento de volume extra e intraoral do lado esquerdo [...] da maxila, firme à palpação, de característica normocrômica e indolor. A conduta consistiu em realização de tomografia Cone Beam, biópsia incisional, remoção completa da lesão, curetagem e fixação maxilar. O paciente encontra-se em acompanhamento clínico e radiográfico sem recidiva após doze meses. Dessa forma, ressalta-se a importância do diagnóstico precoce, a conduta clínica empregada e o acompanhamento periódico. Abstract in english Calcifying cystic odontogenic tumors (CCOT) with proliferative ameloblastoma are a rare variant among maxillary cysts. This study aims to present a clinical report of an 18-year-old male patient with extra and intra oral swelling of the left maxilla, firm to touch, with normochromic characteristics [...] and painless. The clinical approach comprised cone-beam tomography, incisional biopsy, complete removal of the lesion, curettage and maxilla fixation. His clinical and radiographic follow-up has revealed no relapse after 12 months. Hence, this study corroborates the importance of early diagnosis, clinical approach and periodical follow-ups.

  18. Sinus biofilms in patients with cystic fibrosis

    DEFF Research Database (Denmark)

    Aanaes, Kasper; Eickhardt, Steffen; Johansen, Helle Krogh; von Buchwald, Christian; Skov, Marianne; Høiby, Niels; Bjarnsholt, Thomas

    2014-01-01

    The paranasal sinuses can be a focus for colonisation of the cystic fibrosis (CF) lungs with pathogens. In the sinuses, bacteria can adapt to the lung environment and enhance their antibiotic resistance, with biofilm formation thought to be the most important adaptive mechanism, causing recalcitrant disease. The presence of biofilms in CF sinuses is sparsely described. In this descriptive cross-sectional study, the sinus mucosa from 16 CF patients were analysed by fluorescence in situ hybridizat...

  19. Sinus biofilms in patients with cystic fibrosis

    DEFF Research Database (Denmark)

    Aanaes, Kasper; Eickhardt, Steffen; Johansen, Helle Krogh; von Buchwald, Christian; Skov, Marianne; Høiby, Niels; Bjarnsholt, Thomas

    2015-01-01

    The paranasal sinuses can be a focus for colonisation of the cystic fibrosis (CF) lungs with pathogens. In the sinuses, bacteria can adapt to the lung environment and enhance their antibiotic resistance, with biofilm formation thought to be the most important adaptive mechanism, causing recalcitrant disease. The presence of biofilms in CF sinuses is sparsely described. In this descriptive cross-sectional study, the sinus mucosa from 16 CF patients were analysed by fluorescence in situ hybridizat...

  20. Facial emphysema after sinus lift

    OpenAIRE

    Sakakibara, Akiko; Suzuki, Hiroaki; Yamashita, Atsuya; Hasegawa, Takumi; Minamikawa, Tsutomu; Furudoi, Shungo; Komori, Takahide

    2015-01-01

    An 80-year-old man with a history of en bloc resection of squamous cell carcinoma of the hard palate (T4aN0M0) was performed a lateral-window sinus lift of the edentulous area of the left maxillary molar region to facilitate future placement of dental implants.

  1. Quiste dentígero asociado con un diente ectópico en el seno maxilar: Reporte de un caso y revisión de la literatura Dentigerous cyst associated with an ectopic tooth in the maxillary sinus: A report of one case and review of the literature

    Directory of Open Access Journals (Sweden)

    D. Antunes Freitas

    2011-12-01

    Full Text Available El quiste dentígero o folicular es un quiste odontogénico benigno que se encuentra relacionado con la corona de dientes no erupcionados con mayor porcentaje de incidencia en terceros molares, caninos y dientes supernumerarios; los cuales se pueden hallar en posiciones ectópicas, en el maxilar superior se ubican preferentemente en el seno maxilar. Se reporta caso de un quiste dentígero asociado a un tercer molar superior izquierdo en el seno maxilar en un paciente femenino de 19 años de edad la cual es remitida a la Clínica de Diagnóstico Oral en la Escuela de Odontología Curso de Funorte-Brasil. De igual manera se realizo una revisión bibliográfica de esta entidad patológica, sus características clínicas, tratamiento y pronostico.Dentigerous or follicular cyst is a benign odontogenic cyst is related to the crown of unerupted teeth with the highest percentage of incidence in third molars, canines and supernumerary teeth which can be found in ectopic positions in the upper jaw are located preferably in the maxillary sinus. We report a case of dentigerous cyst associated with a left upper third molar into the maxillary sinus in a female patient 19 years old who is sent to the Oral Diagnosis Clinic at the School of Dentistry Course Funorte-Brazil. In the same way we made a literature review of this pathological entity, their clinical characteristics, treatment and prognosis.

  2. Sinus Anatomy

    Science.gov (United States)

    Sinus Anatomy Rakesh Chandra, MD Zara Patel, MD INTRODUCTION The paranasal sinuses (“the sinuses”) are air-filled cavities located ... structure. (You can see Patient Education topic Nasal Anatomy to read more about this). Most of the ...

  3. Elevación de seno maxilar y colocación simultánea de implantes utilizando plasma rico en factores de crecimiento (PRFC), hidroxiapatita y aloinjerto: Reporte de un caso de siete años / Maxillary sinus elevation and simultaneous implant placement using PRGF (plasma rich in growth factors), hydroxyapatite and allogenic graft: Seven year case report

    Scientific Electronic Library Online (English)

    Nayibe, Hernández Tejeda; Ma. del Carmen, López Buendía.

    2013-09-01

    Full Text Available La elevación de piso de seno maxilar es un procedimiento quirúrgico predecible que se realiza con la finalidad de aumentar verticalmente la cantidad de hueso en la región posterior del maxilar para poder realizar una rehabilitación protésica implantosoportada. El propósito de este trabajo es describ [...] ir un caso clínico donde se realizó elevación de piso de seno maxilar utilizando plasma rico en factores de crecimiento, hidroxiapatita absorbible y aloinjerto óseo como materiales de injerto subantral y la colocación simultánea de dos implantes de superficie tratada (Osseotite, 3i) y reportar los resultados clínicos y radiográficos obtenidos siete días, seis meses y siete años después de la cirugía, observando una cicatrización adecuada tanto clínica como radiográficamente. El procedimiento quirúrgico utilizado en este caso clínico resultó una buena opción para poder colocar implantes en áreas maxilares posteriores atróficas. Abstract in english Maxillary sinus floor elevation is a predictable surgical procedure meant to vertically increase the amount of bone in the posterior region of the upper jaw to enable placement of a prosthetic rehabilitation device supported by implants. The aim of the present article was to describe elevation of th [...] e maxillary sinus floor using plasma rich in growth factors, absorbable hydroxyapatite and bone allograft as sub-antral graft materials with simultaneous placement of two surface treated implants (Osseotite, 3i). The present article also reported clinical and radiographic results obtained at seven days, six months and seven years after the surgery. From the clinical and radiographic standpoint suitable healing was observed. The surgical procedure used in the present clinical case was considered a suitable option to place implants in atrophic maxillary areas.

  4. Prevalence of incidental paranasal sinus opacification in dental paediatric patients

    International Nuclear Information System (INIS)

    The purpose of this study was to determine the prevalence of sinus opacification among dental paediatric patients. Two hundred and eight Cone Beam Computed Tomography (CBCT) scans of dental patients under the age of 18 were reviewed for sinus opacification. Patients with any sinus-related signs or symptoms were excluded. The overall prevalence of sinus opacification was 48.1%. The ethmoid (28.4%) and maxillary (27.8%) sinuses were most frequently affected. There were no statistically significant differences for both age and gender. The high prevalence of sinus opacification in asymptomatic children emphasizes the necessity of clinical correlation.

  5. Absence of pulmonary aspiration of sinus contents in patients with asthma and sinusitis

    Energy Technology Data Exchange (ETDEWEB)

    Bardin, P.G.; Van Heerden, B.B.; Joubert, J.R. (Univ. of Stellenbosch (South Africa))

    1990-07-01

    The frequent association of asthma and paranasal sinusitis has been ascribed to a nasobronchial reflex, aspiration of sinus secretions, or enhanced beta-adrenergic blockade. We investigated possible pulmonary aspiration in a pilot study (eight patients) and follow-up study (13 patients) by means of a radionuclide technique. In the pilot study, the aim was to demonstrate aspiration as well as visibility of the radionuclide in the thorax during a period of 24 hours. The radionuclide was initially placed bronchoscopically in the bronchial tree in four patients and was still clearly visible in the same position after 24 hours in three patients. Aspiration from the nasopharynx was unequivocally demonstrated in two of four patients with depressed consciousness. The follow-up study population consisted of four patients with maxillary sinusitis only and nine patients with sinusitis and asthma. The radionuclide was placed in a maxillary sinus during therapeutic puncture. In the patients with only sinusitis as well as patients with asthma and sinusitis the radionuclide could be demonstrated in the maxillary sinus, nasopharynx, esophagus, and lower gastrointestinal tract during a 24-hour period. However, no pulmonary aspiration of radionuclide could be demonstrated in any patient. We conclude that seeding of the lower airways by mucopurulent secretions is unlikely to account for coexistent pulmonary disease. The association is probably related to generalized mucosal disease affecting both upper and lower airways.

  6. Absence of pulmonary aspiration of sinus contents in patients with asthma and sinusitis

    International Nuclear Information System (INIS)

    The frequent association of asthma and paranasal sinusitis has been ascribed to a nasobronchial reflex, aspiration of sinus secretions, or enhanced beta-adrenergic blockade. We investigated possible pulmonary aspiration in a pilot study (eight patients) and follow-up study (13 patients) by means of a radionuclide technique. In the pilot study, the aim was to demonstrate aspiration as well as visibility of the radionuclide in the thorax during a period of 24 hours. The radionuclide was initially placed bronchoscopically in the bronchial tree in four patients and was still clearly visible in the same position after 24 hours in three patients. Aspiration from the nasopharynx was unequivocally demonstrated in two of four patients with depressed consciousness. The follow-up study population consisted of four patients with maxillary sinusitis only and nine patients with sinusitis and asthma. The radionuclide was placed in a maxillary sinus during therapeutic puncture. In the patients with only sinusitis as well as patients with asthma and sinusitis the radionuclide could be demonstrated in the maxillary sinus, nasopharynx, esophagus, and lower gastrointestinal tract during a 24-hour period. However, no pulmonary aspiration of radionuclide could be demonstrated in any patient. We conclude that seeding of the lower airways by mucopurulent secretions is unlikely to account for coexistent pulmonary disease. The association is probably related to generalized mucosal disease affecting both upper and lower airways

  7. Unilateral cacosmia: a presentation of maxillary fungal infestation

    OpenAIRE

    Erskine, Sally E; Schelenz, Silke; Philpott, Carl M

    2013-01-01

    We present a case of long-standing unilateral cacosmia in a healthy 67-year-old man due to maxillary fungal infestation. Treatment with septoplasty had been attempted 10?years prior but no further investigation or management undertaken and symptoms continued. Subsequent MRI scan revealed significant opacification of the left maxillary sinus. This was readily amenable to treatment by balloon sinuplasty. This yielded viscous grey mucus which grew Scedosporium apiospermum. The case highlights th...

  8. Inverted papilloma of nose and paranasal sinuses —surgical dilemma

    OpenAIRE

    Desarda, K. K.

    1997-01-01

    Inverted Papilloma is a benign neoplasm orginating from the schneiderian membrane of nose and paranasal sinus cavities. It has varied clinical and histological involving lateral nasal wall, septum, ethmoids, maxillary and sphenoid sinuses and at times involves skull base. Interesting three cases are reported because of varied presentation of inverted papilloma.

  9. Inverted papilloma of nose and paranasal sinuses -surgical dilemma.

    Science.gov (United States)

    Desarda, K K

    1997-01-01

    Inverted Papilloma is a benign neoplasm orginating from the schneiderian membrane of nose and paranasal sinus cavities. It has varied clinical and histological involving lateral nasal wall, septum, ethmoids, maxillary and sphenoid sinuses and at times involves skull base. Interesting three cases are reported because of varied presentation of inverted papilloma. PMID:23119247

  10. Bone defect repair on the alveolar wall of the maxillary sinus using collagen membranes and temporal fascia: an experimental study in monkeys / Reparo em defeito ósseo da parede alveolar do seio maxilar utilizando membranas de colágeno e fáscia temporal: estudo experimental em macacos

    Scientific Electronic Library Online (English)

    Adalberto Novaes, Silva; José Américo de, Oliveira; Maria Célia, Jamur; José Ari Gualberto, Junqueira; Vani Maria, Correa; Wilma Terezinha Anselmo, Lima.

    2011-08-01

    Full Text Available Poucos experimentos têm sido conduzidos utilizando o princípio da regeneração óssea guiada nas perfurações ósseas do seio maxilar. OBJETIVO: Avaliar o processo de reparo ósseo em defeitos cirúrgicos experimentais realizados na parede alveolar do seio maxilar, comunicando-se com a cavidade sinusal ut [...] ilizando membranas de colágeno e fáscia temporal. MATERIAIS E MÉTODOS: Neste estudo prospectivo, experimental, foram realizados defeitos ósseos em paredes alveolares dos seios maxilares comunicando-se com as cavidades sinusais de quatro macacos pregos (Cebus apella) com membranas de colágeno Gen-derm - Genius Baumer, Pro-tape - Proline e fáscia temporal autóloga e análises histológicas após 180 dias. RESULTADOS: No defeito experimental sem cobertura com métodos de barreira predominou proliferação óssea em dois animais e nos outros dois, tecido conjuntivo fibroso; no grupo em que foi utilizado fáscia temporal predominou tecido conjuntivo fibroso em três animais e proliferação óssea em um animal; nos grupos com membranas de colágeno Gen-derm Pro-tape houve completa proliferação óssea em três animais e predomínio de tecido conjuntivo fibroso em um animal. CONCLUSÕES: Os defeitos cirúrgicos experimentais podem ser reparados, tanto por tecido ósseo como por tecido conjuntivo fibroso, e o uso de membranas de colágeno trouxeram benefícios ao processo de reparo ósseo Abstract in english Few studies has been done using guided bone regeneration in maxillary sinus defects. AIM: To assess the bone repair process in surgical defects on the alveolar wall of the monkey maxillary sinus, which communicates with the sinus cavity, by using collagen membranes: Gen-derm - Genius Baumer, Pro-tap [...] e - Proline and autologous temporal fascia. MATERIALS AND METHODS: In this prospective and experimental study, orosinusal communications were performed in four tufted capuchin monkeys (Cebus apella) and histologic analysis was carried out 180 days after. RESULTS: In the defects without a cover (control), bone proliferation predominated in two animals and fibrous connective tissue predominated in the other two. In defects repaired with a temporal fascia flap, fibrous connective tissue predominated in three animals and bone proliferation predominated in one. In the defects repaired with Gen-derm or Pro-tape collagen membranes there was complete bone proliferation in three animals and fibrous connective tissue in one. CONCLUSIONS: Surgical defect can be repaired with both bone tissue and fibrous connective tissue in all study groups; collagen membranes was more beneficial in the bone repair process than temporal fascia or absence of a barrier

  11. Bone defect repair on the alveolar wall of the maxillary sinus using collagen membranes and temporal fascia: an experimental study in monkeys Reparo em defeito ósseo da parede alveolar do seio maxilar utilizando membranas de colágeno e fáscia temporal: estudo experimental em macacos

    Directory of Open Access Journals (Sweden)

    Adalberto Novaes Silva

    2011-08-01

    Full Text Available Few studies has been done using guided bone regeneration in maxillary sinus defects. AIM: To assess the bone repair process in surgical defects on the alveolar wall of the monkey maxillary sinus, which communicates with the sinus cavity, by using collagen membranes: Gen-derm - Genius Baumer, Pro-tape - Proline and autologous temporal fascia. MATERIALS AND METHODS: In this prospective and experimental study, orosinusal communications were performed in four tufted capuchin monkeys (Cebus apella and histologic analysis was carried out 180 days after. RESULTS: In the defects without a cover (control, bone proliferation predominated in two animals and fibrous connective tissue predominated in the other two. In defects repaired with a temporal fascia flap, fibrous connective tissue predominated in three animals and bone proliferation predominated in one. In the defects repaired with Gen-derm or Pro-tape collagen membranes there was complete bone proliferation in three animals and fibrous connective tissue in one. CONCLUSIONS: Surgical defect can be repaired with both bone tissue and fibrous connective tissue in all study groups; collagen membranes was more beneficial in the bone repair process than temporal fascia or absence of a barrierPoucos experimentos têm sido conduzidos utilizando o princípio da regeneração óssea guiada nas perfurações ósseas do seio maxilar. OBJETIVO: Avaliar o processo de reparo ósseo em defeitos cirúrgicos experimentais realizados na parede alveolar do seio maxilar, comunicando-se com a cavidade sinusal utilizando membranas de colágeno e fáscia temporal. MATERIAIS E MÉTODOS: Neste estudo prospectivo, experimental, foram realizados defeitos ósseos em paredes alveolares dos seios maxilares comunicando-se com as cavidades sinusais de quatro macacos pregos (Cebus apella com membranas de colágeno Gen-derm - Genius Baumer, Pro-tape - Proline e fáscia temporal autóloga e análises histológicas após 180 dias. RESULTADOS: No defeito experimental sem cobertura com métodos de barreira predominou proliferação óssea em dois animais e nos outros dois, tecido conjuntivo fibroso; no grupo em que foi utilizado fáscia temporal predominou tecido conjuntivo fibroso em três animais e proliferação óssea em um animal; nos grupos com membranas de colágeno Gen-derm Pro-tape houve completa proliferação óssea em três animais e predomínio de tecido conjuntivo fibroso em um animal. CONCLUSÕES: Os defeitos cirúrgicos experimentais podem ser reparados, tanto por tecido ósseo como por tecido conjuntivo fibroso, e o uso de membranas de colágeno trouxeram benefícios ao processo de reparo ósseo

  12. Maxillary ameloblastoma: Report of three cases

    Directory of Open Access Journals (Sweden)

    Sapundžiev Petar

    2005-01-01

    Full Text Available The purpose of this report was to analyse surgical methods for treatment of maxillary ameloblastoma and present three cases from our clinical practice in the postoperative period from 1,5 to 3,5 years. We present three patients with maxillary ameloblastoma with different etiology - two male patients and one female child. The location of ameloblastoma next to the maxillary sinus and nasal cavity indicates long-term and asymptomatic growth and comprises difficulties in clinical and X - ray examination. Ameloblastomas in posterior maxilla are very aggressive, more rapidly penetrate adjacent tissues and treatment must be radical. Subtotal resection of maxilla was carried out in all three patients, because this surgical method successfully eradicates tumor and minimizes the possibility for recurrences.

  13. Computerized Tomographic Study on the Paranasal Sinusitis

    International Nuclear Information System (INIS)

    The purpose of this study was to evaluate the computed tomographic (CT) images of the paranasal sinusitis(PNS). The author examined the extent and the recurring patterns of the paranasal sinusitis and some important anatomic landmarks. The author analyzed PNS images retrospectively in 500 patients who visited Chonbuk National University Hospital between January 1996 and December 1997. The most frequently affected sinus was maxillary sinus (82.9%), followed by anterior ethmoid sinus (67.9%), posterior ethmoid sinus (48.9%), frontal sinus (42.0%) and sphenoid sinus (41.4%). The characteristic features of CT images of the sinusitis were sinus opacification (22.4%), mucoperiosteal thickening (34.3%), and polyposis (2.0%). Sinonasal inflammatory diseases were categorized into 5 patterns according to Babbel's classification. They were 1) infundibular (13.0%), 2) ostiomeatal unit (67.4%), 3)sphenoethmoidal recess (13.0%), 4) sinonasal polyposis (9.6%) and 5) unclassifiable patterns (18.0%). The incidences of contact between sinus and optic nerve were as follows ; the incidences of contact with posterior ethmoid sinus, sphenoid sinus, both posterior sinuses were 11.4%, 66.8%, 6.3%, respectively. The incidences of contact between sphenoid sinus and maxillary nerve, vidian nerve, internal carotid artery were 74.5%, 79.2%, 45.1% respectively. The incidences of pneumatization of the posterior ethmoid sinus were as follows; normal 70.6% and overriding type 29.4%. The incidences of sphenoid sinus pneumatization were as follows; normal 56.9% , rudimentary 12.5%, pterygoid recess 22.7%, anterior clinoid recess 2.7%, and both pterygoid and anterior clinoid recess 5.2%. The inflammatory sinonasal diseases were classified into five patterns using the CT of PNS, which was proven to be an excellent imaging modality providing detailed information about mucosal abnormality, pathologic patterns and the proximity of the important structures to the posterior paranasal sinuses. This result will aid in the interpretation of CT of PNS functionally and systemically.

  14. Computerized Tomographic Study on the Paranasal Sinusitis

    Energy Technology Data Exchange (ETDEWEB)

    Choi, Sun Kyung; Lim, Sug Young; Koh, Kwang Joon [Dept. of Oral and Maxillofacial Radiology and Institute of Oral Bio Science, College of Dentistry, Chonbuk National University, Chonju (Korea, Republic of)

    1999-08-15

    The purpose of this study was to evaluate the computed tomographic (CT) images of the paranasal sinusitis(PNS). The author examined the extent and the recurring patterns of the paranasal sinusitis and some important anatomic landmarks. The author analyzed PNS images retrospectively in 500 patients who visited Chonbuk National University Hospital between January 1996 and December 1997. The most frequently affected sinus was maxillary sinus (82.9%), followed by anterior ethmoid sinus (67.9%), posterior ethmoid sinus (48.9%), frontal sinus (42.0%) and sphenoid sinus (41.4%). The characteristic features of CT images of the sinusitis were sinus opacification (22.4%), mucoperiosteal thickening (34.3%), and polyposis (2.0%). Sinonasal inflammatory diseases were categorized into 5 patterns according to Babbel's classification. They were 1) infundibular (13.0%), 2) ostiomeatal unit (67.4%), 3)sphenoethmoidal recess (13.0%), 4) sinonasal polyposis (9.6%) and 5) unclassifiable patterns (18.0%). The incidences of contact between sinus and optic nerve were as follows ; the incidences of contact with posterior ethmoid sinus, sphenoid sinus, both posterior sinuses were 11.4%, 66.8%, 6.3%, respectively. The incidences of contact between sphenoid sinus and maxillary nerve, vidian nerve, internal carotid artery were 74.5%, 79.2%, 45.1% respectively. The incidences of pneumatization of the posterior ethmoid sinus were as follows; normal 70.6% and overriding type 29.4%. The incidences of sphenoid sinus pneumatization were as follows; normal 56.9% , rudimentary 12.5%, pterygoid recess 22.7%, anterior clinoid recess 2.7%, and both pterygoid and anterior clinoid recess 5.2%. The inflammatory sinonasal diseases were classified into five patterns using the CT of PNS, which was proven to be an excellent imaging modality providing detailed information about mucosal abnormality, pathologic patterns and the proximity of the important structures to the posterior paranasal sinuses. This result will aid in the interpretation of CT of PNS functionally and systemically.

  15. Chronic Sinusitis

    OpenAIRE

    Steinberg, Johannes; Modi, Pradip

    1990-01-01

    Paranasal sinuses, which communicate with the nasal passages through the sinus ostia, are essentially sterile structures, sterility being maintained by a healthy epithelium with normal actively beating cilia. Irritants, including viruses and bacteria, are trapped in mucus and cilia to allow the clearance of sinuses through the natural ostia into the nasal cavity. Interference with this normal physiological function results in inflammation and infection within the sinus cavities. All of the si...

  16. Osmotic self-expanding dilation technology for treatment of sinusitis: the Vent-Os sinus dilation system.

    Science.gov (United States)

    Catalano, Peter; Hester, Jerome; Mandrusov, Evgenia

    2015-01-01

    The Vent-Os Sinus Dilation System is an osmotically driven device that provides a means to access the sinus space and to dilate the maxillary sinus ostia and associated spaces in adults for diagnostic and therapeutic procedures. Unlike balloon dilation devices that use rapid, high-pressure inflation, this self-expanding device is designed to gently and gradually open the maxillary ostia. The procedure can be safely and easily completed in-office with minimal anesthetics and analgesics on board. Clinical results support excellent patency and safety outcomes with the use of this product in patients with chronic rhinosinusitis. PMID:25467029

  17. Fungal sinusitis diagnostic management and classification

    Directory of Open Access Journals (Sweden)

    Jovi?evi? O.

    2009-01-01

    Full Text Available The aim of this paper is to present the current classification of fungal sinusitis and share our experiences in diagnostic procedures and treatment outcomes. The study includes 31 patients operated since 2000-2009. in whome some form of fungal infection had been diagnosed. There were 10 patients with mycetoma, and 16 patients with chronic non-invasive fungal sinusitis, while in five patients allergic fungal sinusitis was proven. All patients were treated postoperatively with topical steroids and irrigation with saline solution, without use of fungicides. Characteristics of chronic non-invasive funga sinusitis and mycetoma are CT with specific opacification and calcification with involement of maxillary sinus unilaterally or bilateral together with pathohistological finding of positive staining by Grocott with the identification of fungi from secret or tissue. Allergic fungal sinusitis is characterized by eosinophilia, positive skin test to fungal allergens, elevated serum level of both specific IgE antibodies to causal fungus and total IgE, as well as, pathohistological finding of allergic mucus which include non-invasive hifa. Fungal sinusitis in immunocompetent patients is classified into the following categories: mycetoma, chronic non-invasive fungal sinusitis, chronic indolent sinusitis (which does not occur in our population and allergic fungal sinusitis.

  18. The endoscopic management of chronic frontal sinusitis associated with frontal sinus posterior table erosion.

    Science.gov (United States)

    Hurley, D B; Javer, A R; Kuhn, F A; Citardi, M J

    2000-01-01

    Expansile inflammatory diseases of the frontal sinuses may produce erosion of the posterior table of the frontal sinus. In these instances, the bone between sinus mucosa and intracranial dura is absent. Over the past decade, endoscopic frontal sinusotomy has emerged as the preferred technique for the treatment of refractory chronic frontal sinusitis. Endoscopic approaches also have a role in the most advanced instances of frontal sinusitis. A retrospective chart review of patients who were treated for frontal sinusitis with erosion of the frontal sinus posterior table was performed. Eight patients were identified. All patients underwent endoscopic frontal sinusotomy; some patients required multiple endoscopic procedures. Complete frontal recess dissection with identification of the frontal ostium was achieved for all involved frontal sinuses. In all cases, this postoperative result was monitored by CT scans (where indicated) and serial nasal endoscopy, which demonstrated good frontal sinus aeration and normal mucociliary clearance. Antibiotics were administered for culture-documented bacterial exacerbations, and systemic steroids were given for management of allergic fungal sinusitis and sinonasal polyposis associated with asthma. No patient underwent frontal sinus obliteration or cranialization. No suppurative intracranial complications were noted during the postoperative period. Endoscopic frontal sinusotomy can be used safely for the definitive management of frontal sinusitis associated with posterior table erosion. In fact, endoscopic techniques may represent the preferred approach for the treatment of this problem. Such an approach avoids the morbidity of more destructive alternatives (such as obliteration), and serves to create a frontal sinus with normal mucociliary clearance. PMID:10793915

  19. How does nose blowing effect the computed tomography of paranasal sinuses in chronic sinusitis?

    International Nuclear Information System (INIS)

    Objective: Our aim was to determine whether inward or outward movement of the secretions in the paranasal sinuses due to nose blowing after nasal decongestion has any effect on the paranasal sinus computed tomography (CT) images in patients with sinusitis and to asses whether nose blowing may result in misdiagnosis or overdiagnosis in radiological evaluation of sinusitis. Materials and methods: Twenty-four patients with chronic sinusitis were evaluated in an academic tertiary care hospital and data were collected prospectively. After coronal sinus computed tomography scans were performed at 100 mA setting which was half the value of the standard radiation dose suggested by the manufacturer, topical decongestion was applied to each nostril followed by nose blowing 10 min later. Sinus CT scans were then repeated at the same setting. We evaluated the mucosal thickness of medial, lateral, superior and inferior maxillary and frontal sinus walls and the maximal thickness in anterior ethmoidal cells. The measurements prior to and following nose blowing were compared with Wilcoxon signed ranks test. The obtained images were also staged using Lund-McKay staging system separately and the scores were compared with Student's t-test. Results: We observed a tendency towards reduction in mucosal thickness after nose blowing. There were statistically significant differences between maxillary sinus inferior wall and frontal sinus inferior wall mucosal thickness values prior to and after nose blowing. The difference however was very small, about 0.5 mm in magnitude and Lund-McKay score did not change in any of the patients after nose blowing. Conclusion: Nose blowing and topical nasal decongestion does not have any effect on the diagnostic accuracy of sinus CT in chronic sinusitis patients

  20. [Orbital complications of sinusitis].

    Science.gov (United States)

    Šucha?, M; Hor?ák, M; Kaliarik, L; Krempaská, S; Koštialová, T; Kova?, J

    2014-12-01

    Orbital complications categorised by Chandler are emergency. They need early diagnosis and agresive treatment. Stage and origin of orbital complications are identified by rhinoendoscopy, ophtalmologic examination and CT of orbite and paranasal sinuses. Periorbital cellulitis and early stage of orbital cellulitis can be treated conservatively with i. v. antibiotics. Monitoring of laboratory parameters and ophtalmologic symptoms is mandatory. Lack of improvement or worsening of symptoms within 24-48 hours and advanced stages of orbital complications are indicated for surgery. The purpose of the study is to evaluate epidemiology, clinical features and management of sinogenic orbital complications. Retrospective data of 8 patients with suspicion of orbital complication admited to hospital from 2008 to 2013 were evaluated. Patients were analyzed in terms of gender, age, CT findings, microbiology, clinical features, stage and treatment. Male and female were afected in rate 1,66:1. Most of patients were young adult in 3rd. and 4th. decade of life (62,5 %). Acute and chronic sinusitis were cause of orbital complication in the same rate. The most common origin of orbital complication was ethmoiditis (62,5 %), than maxillary (25 %) and frontal (12,5 %) sinusitis. Polysinusitis with affection of ethmoidal, maxillary and frontal sinuses (75 %) was usual CT finding. Staphylococcus epidermidis and Staphylococcus aureus were etiological agens in half of cases. Periorbital oedema (100 %), proptosis, chemosis (50 %), diplopia and glaucoma (12,5 %) were observed. Based on examinations, diagnosis of periorbital oedema/preseptal cellulitis was made in 3 (37,5 %), orbital cellulitis in 3 (37,5 %) and subperiosteal abscess in 2 cases (25 %). All patients underwent combined therapy - i. v. antibiotics and surgery within 24 hours. Eradication of disease from ostiomeatal complex (OMC), drainage of affected sinuses and drainage of subperiosteal abscess were done via fuctional endonasal endoscopic surgery (FEES). In case of superior subperiosteal abscess, combined endonasal and external approach (external orbitotomy) was needed. Combined therapy facilitated quick improvement of local and systematic symptoms. Average time of hospitalisation was 7 days. Early diagnosis and agresive combined therapy prevent loss of vision and life threatening complications. PMID:25640234

  1. Anatomical variants of paranasal sinus affecting the ostiomeatal unit

    International Nuclear Information System (INIS)

    It is well known that anatomic variations affecting the ostiomeatal unit (OMU) become one of the causes of mucosal abnormalities of paranasal sinus (PNS). Findings of coranal plane CT scans of PNS were analyzed in 95 patients with sinusitis or sinusitis-like complaints. Anatomical variations were seen in 88 cases of 60 patients. Mucosal abnormalities were seen in 27 of 47 cases with concha bullosa, 23 of 37 cases with enlarged ethmoid bulla, 8 of 33 cases with Agger nasi, 20 of 26 cases with nasoseptal deviation, 7 of 8 case with Haller cell, 3 of 6 cases with duoble middle turbinate, 4 of 6 cases with medially bent uncinate process, 1 of 1 cases with laterally bent uncinate process, and 33 of 40 cases with mixed variations. Mucosal abnormalities in cases with anatomical variations were detected in 61 cases, including maxillary sinus (51 cases), anterior ethmoid sinus (26 cases), frontal sinus (4 case), and mixed (32 cases). Mucosal abnormalities without anatomical variations were detected in 13 cases involving maxillary sinuses (7 cases), anterior ethmoid sinus (5 cases), and frontal sinus (1 case). In conclusion, as coronal plane CT scan has the capability of delineating anatomical variations and mucosal abnormalities of PNS, it is considered useful in evaluating the treatment and prognosis of chronic or recurrent sinusitis

  2. Localización del Septo del Seno Maxilar a través de Abordaje Endoscópico: Reporte de Caso y Revisión de la Literatura Location of Maxillary Sinus Septum through an Endoscopic Approach: Report of a Case and Review of the Literature

    OpenAIRE

    Víctor Javier Beltrán Varas; Ramón Fuentes Fernández; Wilfried Engelke; Francisco Marchesani Carrasco; Marco Flores Velásquez

    2011-01-01

    El abordaje quirúrgico del seno maxilar para maniobras como el levantamiento de la membrana sinusal y la colocación de injerto óseo con o sin implantes simultáneo en la zona subantral, es un procedimiento cada vez más habitual en implantología oral. Una de las mayores complicaciones en este tipo de procedimientos es el abordaje de la pared lateral del seno maxilar con presencia de septos intra-sinusales no diagnosticados, pudiendo producir perforación de la membrana durante el fresado óseo. L...

  3. Bilateral postoperative maxillary cysts after orthognathic surgery: A case report

    Energy Technology Data Exchange (ETDEWEB)

    Lee, Jung Hye; Huh, Kyung Hoe; Yi, Won Jin; Heo, Min Suk; Lee, Sam Sun; Choi, Soon Chul [Dept. of Oral and Maxillofacial Radiology and Dental Research Institute, School of Dentistry, Seoul National University, Seoul (Korea, Republic of)

    2014-12-15

    Postoperative maxillary cysts are locally aggressive lesions, usually developing as delayed complications many years after radical antral surgery. This report describes a case of bilateral postoperative maxillary cysts following orthognathic surgery performed approximately 21 years previously. The patient complained of stinging pain on her right cheek. Radiographic examination revealed low-attenuation lesions on both maxillary sinuses with discontinuously corticated margins without distinct expansion or bone destruction. The cysts were enucleated with the removal of metal plates and screws for pain relief. Histopathological examination confirmed the diagnosis of postoperative maxillary cysts lined by ciliated, pseudostratified columnar cells. The patient has remained asymptomatic thus far, and there was no evidence of local recurrence at 21 months of postoperative follow-up.

  4. Tridimensional reconstruction of knife-edge edentulous maxillae by sinus elevation, onlay grafts, and sagittal osteotomy of the anterior maxilla: preliminary surgical and prosthetic results

    OpenAIRE

    CHIAPASCO, MATTEO FRANCESCO; Romeo, Eugenio; VOGEL, GIORGIO

    1998-01-01

    The possibility of placing endosseous implants in the edentulous maxilla is frequently reduced by inadequate bone volume of the residual ridge. In totally edentulous maxillae with knife-edge conformation, insufficient thickness is frequently associated with insufficient height of the residual ridge in the posterior maxilla because of pneumatization of the maxillary sinuses. This surgical method combines grafting of the maxillary sinuses, onlay grafts on the buccal side of maxillary posterior ...

  5. Selecting the Best Approach to the Frontal Sinus

    OpenAIRE

    Philpott, Carl M; Mckiernan, David C.; Javer, Amin R

    2011-01-01

    The Messerklinger technique is an endoscopic approach to sinus surgery designed to be minimally invasive and preserve mucosa and hence physiological function. More recently there have been advocates for more radical endoscopic approaches to the frontal sinus such as the Modified Lothrop. This review discusses different approaches to frontal sinus surgery including any advantages and disadvantages to each approach. After examining the evidence from the literature, meticulously performed endosc...

  6. Sinus Tumors

    Science.gov (United States)

    ... tumor is suspected. Treatment considerations The treatments for benign and malignant nasal and sinus tumors are highly complex and may involve evaluation by several medical specialties including otolaryngology, radiation oncology, medical oncology, neurosurgery and others. The treatment ...

  7. Adult Sinusitis

    Science.gov (United States)

    ... going from indoors to outdoors. Most people with allergies will notice specific triggers for their symptoms like increases in the pollen count or coming into contact with a cat or dog. Headaches: “ Sinus headache ” is a common term, but ...

  8. Recirculación en rinosinusitis maxilar / Mucus recirculation in maxillary rhinosinusitis

    Scientific Electronic Library Online (English)

    Claudia, Heider C; Gloria, Ribalta L; Karin, Krauss M.

    2013-04-01

    Full Text Available Introducción: La recirculación de moco entre el ostium natural del seno maxilar y otras aberturas en el seno, altera el transporte mucociliar normal, favorece su acumula-ción y sobreinfección, perpetuando el fenómeno inflamatorio. Objetivo: Describir nuestra experiencia en el diagnóstico y tratamien [...] to de pacientes con rinosinusitis maxilar crónica y/o aguda recurrente cuyo estudio reveló recirculación maxilar. Material y método: Estudio retrospectivo descriptivo. Se revisaron historias clínicas, nasofibroscopías, informes radiológicos y hallazgos operatorios. Resultados: Ocho pacientes con edad promedio de 43 años. El 100%% presentó antecedente de cirugía que involucraba el seno maxilar. Todos se presentaron como rinosinusitis maxilar crónica y/o aguda con reagudizaciones frecuentes (3 episodios/ año). El diagnóstico se realizó mediante nasofibroscopía que evidenció recirculación de moco entre ostium natural y accesorio. Cinco pacientes se sometieron a cirugía endoscópica para unir el ostium accesorio (OA) al natural, disminuyendo el número de exacerbaciones. Conclusión: La recirculación maxilar se debe sospechar en pacientes con diagnóstico de rinosinusitis maxilar crónica y/o aguda recurrente con antecedente de cirugías que involucren el seno maxilar. Su diagnóstico se basa en la observación de recirculación de moco a la nasofibroscopía. El manejo es quirúrgico y dependerá de la ubicación del OA y de la permeabilidad del ostium natural. Abstract in english Introduction: Recirculation of mucus between the maxillary sinus natural ostium and adjacent openings disturbs mucociliary clearence leading to secretions accumulation and persistent infection, perpetuating the inflammatory phenomenon. Aim: Describe our experience in the diagnosis and treatment ofpa [...] tients with maxillary rhinosinusitis (chronic or acute recurrent) and maxillary recirculation. Material and method: Descriptive and retrospective study. Clinical records, radiologic characteristic, nasal endoscopies and surgical findings were reviewed. Results: 8 patients, mean age of 43 years. All of them had prior history of maxillary sinus surgery. Clinical presentation was maxillary rhinosinusitis, chronic or acute, with frequent episodes ofreagudization (3 episodes/year). The diagnosis was made by endoscopic nasal examination that showed mucus recirculation between natural and accessory ostium. Endoscopic sinus surgery was done in 5patients in order to communicate the accessory to the natural ostium, leading to a decrease in the number of exacerbations. Conclusions: Maxillary recirculation must be suspected in patients with maxillary rhinosinusitis (chronic or acute recurrent) who have had prior surgical procedures that involve the maxillary sinus. The diagnosis is based on the observation of the recirculation phenomenon in the nasal endoscopy. The treatment is surgical and depends on the location of the accessory ostium and the permeability of the natural ostium.

  9. Tratamento endoscópico do cisto odontogênico com extensão intra-sinusal / Endoscopic treatment of odontogenic cyst with intra-sinusal extension

    Scientific Electronic Library Online (English)

    Antonio C., Cedin; Fausto A. de, Paula Junior; Emanuel R., Landim; Flávio L. P. da, Silva; Luis F. de, Oliveira; Ana C., Sotter.

    2005-06-01

    Full Text Available Cistos odontogênicos são lesões pouco comuns que podem ocorrer após inflamação da polpa dentária. A abordagem terapêutica destes cistos é realizada em consultórios odontológicos e, dependendo de sua extensão, pode ocasionar a formação de fístula oroantral e rinossinusite crônica. O objetivo deste tr [...] abalho é propor o tratamento videoendoscópico do cisto odontogênico com expressão em seio maxilar. Realizou-se um estudo retrospectivo de quatro casos de cistos de origem dentária, com extensão intra-sinusal, complicados com fístula oroantral e sinusite crônica de seio maxilar após curetagem em consultório odontológico. Utilizamos a técnica videoendoscópica via transmaxilar para acessarmos o cisto intra-sinusal. Os quatro pacientes apresentaram resolução do quadro infeccioso e cicatrização da fístula oroantral, sem recidiva durante o seguimento. A cirurgia videoendoscópica é um método seguro e efetivo para tratamento do cisto odontogênico descrito, podendo contribuir para prevenir a formação de fístula oroantral e supuração de seio maxilar. Abstract in english Odontogenic cyst is a common lesion that can happen after inflammation of the dental pulp. The therapeutic approach of these cysts is made at dentist's offices, and depending on their extension, they may develop oroantral fistula and chronic sinusitis. The objective of this study is to propose the v [...] ideoendoscopic treatment of the odontogenic cyst with expression in the maxillary sinus. We made a retrospective study of four cases of cysts of dental origin, with intra-sinusal extension, complicated with oroantral fistula and chronic sinusitis of maxillary sinus after curettage in a dentist's office. We used the videoendoscopic technique through transmaxillary approach to access the intra-sinusal cyst. All the four patients presented resolution of the infectious manifestation and healing of the oroantral fistula, without recurrence within two years of follow-up. Videoendoscopic surgery is a safe and effective method for the management of odontogenic cysts with extension to maxillary sinus, and it may prevent oroantral fistula formation and chronic sinusitis.

  10. CT and MRI diagnosis of cavernous hemangioma in paranasal sinus

    International Nuclear Information System (INIS)

    Objective: To investigate the CT and MRI findings of cavernous hemangioma in paranasal sinus so as to promote the diagnostic accuracy. Methods: All 30 eases of cavernous hemangioma in paranasal sinus were verified with pathological examinations. The CT and MRI findings were analyzed retrospectively. Results: The lesions occurred in the maxillary sinus in 25 cases, in the anterior ethmoid sinus in 3 cases and in the sphenoid sinus in 2 cases. The lesions extended and compressed adjacent structures. MRI showed the extent and the associated changes of the lesions more clearly compared to CT. On CT, all the involved paranasal sinuses invariably expanded. The bony walls of paranasal sinuses were compressed and remodeled with focal defect in 28 cases, mostly in the medial wall of the maxillary sinus (21 cases). Bony scelerosis of the residual walls of paranasal sinus were found in 8 cases. The lesions demonstrated well-defined margin and heterogeneous density with phlebolith in 10 cases. Postcontrast CT showed marked inhomogeneous enhancement in 16 cases. On MR T1WI, canernous hemangioma showed hypointense signal compared to brain in 4 cases and isointense signal in 14 cases. On T2WI, the lesions revealed heterogeneous hyperintense singal in 16 cases and isointense signal in 2 cases with multiple hypointense foci. Postcontrast MR imaging demonstrated marked inhomogeneous enhancement in these cases, honeycomb-like appearance in 8 cases and variegated appearance in 10 cases. The feature of progressive enhancement was found on dynamic contrast enhancement of MRI in 8 cases. Conclusions: The characteristic bony change together with phlebolith can suggest the diagnosis of cavernous hemangioma in paranasal sinus on CT. The heterogeneous hyperintense singal on MR T2WI, progressive enhancement and honeycomb-like or variegated appearance on postcontrast MRI were also the characteristic findings of cavernous hemangioma in paranasal sinus. Combination of CT and MRI findings can provide more accurate information for the diagnosis and therapy of cavernous hemangioma in paranasal sinus. (authors)

  11. Maxillary protraction after surgically assisted maxillary expansion

    Scientific Electronic Library Online (English)

    Laurindo Zanco, Furquim; Guilherme, Janson; Bruno D' Aurea, Furquim; Liogi, Iwaki Filho; José Fernando Castanha, Henriques; Geovane Miranda, Ferreira.

    2010-06-01

    Full Text Available This case report describes the orthodontic treatment of a 32-year-old woman with a Class III malocclusion, whose chief compliant was her dentofacial esthetics. The pretreatment lateral cephalometric tracings showed the presence of a Class III dentoskeletal malocclusion with components of maxillary d [...] eficiency. After discussion with the patient, the treatment option included surgically assisted rapid maxillary expansion (SARME) followed by orthopedic protraction (Sky Hook) and Class III elastics. Patient compliance was excellent and satisfactory dentofacial esthetics was achieved after treatment completion.

  12. Maxillary protraction after surgically assisted maxillary expansion

    Directory of Open Access Journals (Sweden)

    Laurindo Zanco Furquim

    2010-06-01

    Full Text Available This case report describes the orthodontic treatment of a 32-year-old woman with a Class III malocclusion, whose chief compliant was her dentofacial esthetics. The pretreatment lateral cephalometric tracings showed the presence of a Class III dentoskeletal malocclusion with components of maxillary deficiency. After discussion with the patient, the treatment option included surgically assisted rapid maxillary expansion (SARME followed by orthopedic protraction (Sky Hook and Class III elastics. Patient compliance was excellent and satisfactory dentofacial esthetics was achieved after treatment completion.

  13. Selective intra arterial infusion chemotherapy for malignant nasal and paranasal sinus tumors

    International Nuclear Information System (INIS)

    Since 1998, we have treated 14 malignant nasal and paranasal sinus tumor patients with selective intra arterial infusion chemotherapy. We report results for 7 of maxillary sinus, 3 of sphenoid sinus 1 of ethmoid sinus, and 3 of the nasal cavity. Only 1 maxillary sinus case involved recurrence. Intra arterial infusions of cisplatin (100 mg/body) was delivered rapidly to the tumor and usually repeated for 4 times. Conventional external-beam irradiation (2 Gy per fraction x 30) was also used. Complete response cases were 9 of 14 and control of the local lesion found in all new cases. These results indicate that intra arterial infusion therapy is effective against advanced malignant nasal and paranasal sinus tumors. (author)

  14. Computed tomography of chronic or recurrent paranasal sinusitis

    International Nuclear Information System (INIS)

    Since an accurate description on the pathophysiology of the nasal cavity and paranasal sinus (PNS) was established, a detailed evaluation of their anatomic and pathologic status, especially of the ostiomeatal unit, has become important, and computed tomography (CT) has increasingly been used for evaluating chronic sinusitis. This study was undertaken to assess the value of CT in chronic or recurrent paranasal sinusitis and to ascertain the theory of rhinogenic origin as the pathophysiologic basis of sinusitis. We retrospectively analyzed the PNS CT findings of 108 patients with chronic or recurrent sinusitis. The CT scan were obtained in thin-section (3mm or 5mm) coronal and axial planes after contrast medium administration. With respect to the location of the sinusitis, the anterior ethmoid sinus was involved in 98 (91%), maxillary sinus in 93 (86%), frontal sinus in 60 (56%), posterior ethmoid sinus in 35 (32%), and sphenoid sinus in 32 cases (30%). CT finding of the sinusitis consisted of sinus opacification (74%), mucoperiosteal thickening (69%), mucosal enhancement (36%), air-fluid level (18%), and bony wall thickening (11%). Complications included retention cysts (29%), mucoceles (8%), and orbital cellulitis (1%). Obstruction of the ostiomeatal unit was noted in 104 cases (96%), which were composed of inflammatory process, nasal polyps, concha bullosae, inverting papillomas, paradoxic middle turbinates, severe septal deviations, and large ethmoidal bulla. Of the 17 cases with a past history of Caldwell-Luc operation, 15 cases showed obstruction of the ostiomeatal units. We concluded the CT was a very useful modality for evaluating chronic or recurrent sinusitis and for demonstrating the finely detailed pathologic anatomy of the nasal cavity and paranasal sinuses

  15. Comparación entre distintos sustitutos óseos utilizados para procedimientos de elevación de seno maxilar previo a la colocación de implantes dentales Comparison between different bone substitutes for maxillary sinus floor augmentation prior to placement of dental implants

    Directory of Open Access Journals (Sweden)

    M. Muñoz Corcuera

    2008-12-01

    Full Text Available Introducción: En la actualidad, es frecuente la rehabilitación de la zona posterior del maxilar utilizando implantes asociados a técnicas de aumento óseo, entre ellas la elevación de seno maxilar. Aunque el hueso autógeno es considerado el "gold standard" de los materiales de injerto óseo, se acompaña de morbilidad y su disponibilidad es limitada. Por ello, el objetivo de esta revisión es valorar los distintos sustitutos óseos para la elevación de seno previa a la colocación de implantes así como cuál es más efectivo. Material y métodos: Se realizó una búsqueda bibliográfica electrónica en la base de datos Cochrane y en Pubmed. Se escogieron trabajos que trataran materiales de injerto para procedimientos de elevación de seno. Resultados: Se seleccionaron trece artículos para la realización de la revisión. Para su comparación, se establecieron dos grupos, aquellos trabajos que se basaban en estudios histológicos y la valoración de la mineralización, y aquellos que evaluaban parámetros clínicos y la tasa de supervivencia de los implantes. Discusión: Teniendo en cuenta los hallazgos dispares de los distintos trabajos, no se puede considerar un material de elección sobre los demás. Sería deseable la realización de estudios a largo plazo con muestras amplias comparando distintos materiales de injerto, que evaluaran los resultados histológicos y clínicos. Conclusiones: El hueso autógeno aún es considerado el "gold standard" de los materiales de injerto para la elevación de seno maxilar, a pesar que se asocia a una elevada tasa de complicaciones. Aunque son necesarios más estudios, se han obtenidos resultados prometedores con la hidroxiapatita bovina y el ß-fosfato tricálcico.Introduction: Presently, prosthetic rehabilitation combining dental implants with bone augmentation techniques is frequently used; included amongst these is sinus floor augmentation. Despite autogenous bone being considered the gold standard of bone grafting materials, it is associated with morbidity and limited availability. The aim of this revision was to evaluate the bone substitutes for sinus floor augmentation prior to the placement of dental implants. Materials and Methods: An electronic literature search was conducted in the Cochrane database and Pubmed. Studies analysing graft materials for sinus floor augmentation were chosen. Results: 13 articles were selected for the revision, from which 2 groups were established for comparison; those studies based in histological and mineralisation analyses and those evaluating clinical parameters and the survival rate of the implants. Discussion: Due to the different findings of the studies, there is no material that can be considered preferable over any other. It would be desirable that future studies had longer follow-ups, larger samples, compared different graft materials and evaluated histological and clinical results simultaneously. Conclusions: Autogenous bone is still considered the gold standard of graft materials; however, it is associated with a high complication rate. Although more studies are needed, bovine hydroxiapatite and ß-tricalcium phosphate have achieved promising results.

  16. Comparación entre distintos sustitutos óseos utilizados para procedimientos de elevación de seno maxilar previo a la colocación de implantes dentales / Comparison between different bone substitutes for maxillary sinus floor augmentation prior to placement of dental implants

    Scientific Electronic Library Online (English)

    M., Muñoz Corcuera; A, Trullenque Eriksson.

    2008-12-01

    Full Text Available Introducción: En la actualidad, es frecuente la rehabilitación de la zona posterior del maxilar utilizando implantes asociados a técnicas de aumento óseo, entre ellas la elevación de seno maxilar. Aunque el hueso autógeno es considerado el "gold standard" de los materiales de injerto óseo, se acompa [...] ña de morbilidad y su disponibilidad es limitada. Por ello, el objetivo de esta revisión es valorar los distintos sustitutos óseos para la elevación de seno previa a la colocación de implantes así como cuál es más efectivo. Material y métodos: Se realizó una búsqueda bibliográfica electrónica en la base de datos Cochrane y en Pubmed. Se escogieron trabajos que trataran materiales de injerto para procedimientos de elevación de seno. Resultados: Se seleccionaron trece artículos para la realización de la revisión. Para su comparación, se establecieron dos grupos, aquellos trabajos que se basaban en estudios histológicos y la valoración de la mineralización, y aquellos que evaluaban parámetros clínicos y la tasa de supervivencia de los implantes. Discusión: Teniendo en cuenta los hallazgos dispares de los distintos trabajos, no se puede considerar un material de elección sobre los demás. Sería deseable la realización de estudios a largo plazo con muestras amplias comparando distintos materiales de injerto, que evaluaran los resultados histológicos y clínicos. Conclusiones: El hueso autógeno aún es considerado el "gold standard" de los materiales de injerto para la elevación de seno maxilar, a pesar que se asocia a una elevada tasa de complicaciones. Aunque son necesarios más estudios, se han obtenidos resultados prometedores con la hidroxiapatita bovina y el ß-fosfato tricálcico. Abstract in english Introduction: Presently, prosthetic rehabilitation combining dental implants with bone augmentation techniques is frequently used; included amongst these is sinus floor augmentation. Despite autogenous bone being considered the gold standard of bone grafting materials, it is associated with morbidit [...] y and limited availability. The aim of this revision was to evaluate the bone substitutes for sinus floor augmentation prior to the placement of dental implants. Materials and Methods: An electronic literature search was conducted in the Cochrane database and Pubmed. Studies analysing graft materials for sinus floor augmentation were chosen. Results: 13 articles were selected for the revision, from which 2 groups were established for comparison; those studies based in histological and mineralisation analyses and those evaluating clinical parameters and the survival rate of the implants. Discussion: Due to the different findings of the studies, there is no material that can be considered preferable over any other. It would be desirable that future studies had longer follow-ups, larger samples, compared different graft materials and evaluated histological and clinical results simultaneously. Conclusions: Autogenous bone is still considered the gold standard of graft materials; however, it is associated with a high complication rate. Although more studies are needed, bovine hydroxiapatite and ß-tricalcium phosphate have achieved promising results.

  17. Deformation of lacrimal fossa and nasolacrimal canal after paranasal sinus operation and in chronic sinusitis

    International Nuclear Information System (INIS)

    As have been already described in the literature, the bony wall of maxillary antrum is thickened and sclerotic, and antral contraction may occur in chronic sinusitis and after paranasal sinus operation. However, bony nasolacrimal canal (NLC) is also deformed, but no quantitative data have been published on bony NLC in patients with postoperative status and chronic sinusitis. In the present study, I have measured the diameter and the wall thickness of lacrimal fossa (LF) and NLC. Eighty-nine post-operative cases of paranasal sinuses (bilateral 66 cases, unilateral 23 cases, mean 60.1 years; male/female 59/30), 48 cases with chronic paranasal sinusitis (mean 52.9 years; male/female=32/16,) and 40 normal subjects (mean 44.7 years, male/female=18/22) were measured. The diameter of NLC (upper and lower portions), medial wall thickness of LF and NLC were measured. The outer distance between distal end of bilateral NLC and angle of inclination of NLC were also measured. CT examination was performed with multidetector CT with 0.5 mm collimation and measurement was performed on Exavision (Ziosoft), with reconstruction. The mean diameter of NLC in the post-operative group (upper; 5.6 mm, lower; 6.0 mm) was statistically enlarged as compared with that of normal subjects (4.4 mm both). The chronic sinusitis group (4.7 mm, 4.9 mm, respectively) showed no statistical deference from the normal group in upper diameter of NLC. The wall thickness of LF and upper NLC in post-operative groups were statistically thick (post-operative; 0.63, 0.64, normal; 0.37, 0.44 mm, respectively), however, those in chronic sinusitis group were not (chronic sinusitis; 0.40, 0.45 mm, respectively). The angle of the inclination of NLC showed outer deviation in the postoperative group and inner deviation in the chronic sinusitis group. After the operation of paranasal sinuses, dilatation of NLC and thickening of bony wall of LF and NLC occurred definitely, and these phenomena were confirmed statistically. It is said that both postoperative sinus and chronic sinusitis have sclerotic and thickened bony wall of maxillary antrum, however, consequence of statistical deformation of LF and upper NLC occurs only in the former. Currently, dacryocystorhinostomy and sinus surgery have been performed endoscopically. This technique can reduce surgical invasion dramatically, but there is no information on bony structure. The structural change of lacrimal drainage apparatus should be considered and ensured before these operations. Evaluation of postoperative NLC and LF with CT scan is an adequate technique which will avoid technical trouble during the operation and complications. (author)

  18. Prevalence of incidental paranasal sinus opacification in an adult dental population

    International Nuclear Information System (INIS)

    The purpose of this study was to determine the prevalence of sinus opacification among adult dental patients. Five hundred and sixty-four Cone Beam Computed Tomography (CBCT) scans of dental patients over the age of 18 were reviewed for sinus opacification. Opacification was graded as clear, mild, moderate or severe. Patients with any sinus-related signs or symptoms were excluded. Sinus opacification in one or more sinuses was found in 59.2% of the patients. The sinus opacification was mild in 49.8%, moderate in 8.3%, and severe in 1.1%. The maxillary (37.7%) and ethmoid (37.4%) sinuses were most frequently affected. The prevalence was higher in the older age group and showed a male predomination (p<0.05). Sinus opacification in asymptomatic adults is very common and emphasizes the importance of clinical correlation before deciding on the final diagnosis and treatment.

  19. Transoral removal of ectopic maxillary third molar situated superiorly to maxillary antrum and posteroinferiorly to the floor of orbit

    Directory of Open Access Journals (Sweden)

    Anshul Rai

    2013-01-01

    Full Text Available Only few cases of ectopic third molar in relation to the roof of maxillary sinus and posteroinferior to the floor of the orbit have been reported in the literature. The diagnosis is usually done by plain-film radiography. "Caldwell-Luc" operation or endoscopic procedures have been used for the removal of such type of ectopic tooth. We report a case of 46-year-old female patient who presented with pain, swelling and watering of eye due to the ectopic tooth. The trans oral removal (via "Caldwell-Luc" operation of the ectopic maxillary third molar situated superior to maxillary antrum and posteroinferior to the floor of orbit has been described in this case without any complication.

  20. Sinus CT scan and Functional Endoscopic Sinus

    OpenAIRE

    S. Naghibi; R. Zojaji; M. Khaki Hesari; A. H. Hashemi

    2008-01-01

    Background/Objective: Computerized tomography scan (CT scan) of the nose and paranasal sinuses plays a key role in preoperative evaluation of patients undergoing endoscope sinus surgery (ESS) for chronic sinusitis. The objective of this study was based on a comparative study among findings of nasal endoscopy during surgery and high resolution CT scan of the nose and paranasal sinuses, within the examinations for etiological"ninvestigation in chronic sinusitis, individualizing the importa...

  1. Perforation of the sinus membrane during sinus floor elevation : a retrospective study of frequency and possible risk factors

    DEFF Research Database (Denmark)

    von Arx, Thomas; Fodich, Ivo

    2014-01-01

    PURPOSE: To analyze the frequency of perforation of the sinus membrane during maxillary sinus floor elevation (SFE) and to assess possible risk factors. MATERIALS AND METHODS: Seventy-seven cases of SFE performed with a lateral window approach were evaluated retrospectively. Clinical and radiographic variables potentially influencing the risk of sinus membrane perforation were evaluated and divided into patient-related factors (age, sex, smoking habit); surgery-related factors (type of surgical approach, side, units, sites, and technique of osteotomy); and maxillary sinus-related factors (presence and height of septum, height of residual ridge, thickness of lateral sinus wall, width of antrum, and thickness and status of sinus membrane). RESULTS: The following factors presented with at least a 10% difference in rates of perforations: smokers (46.2%) versus nonsmokers (23.4%), simultaneous (32%) versus staged (18.5%) approach, mixed premolar-molar sites (41.2%) versus premolar-only sites (16.7%) versus molar-only sites (26.2%), presence of septa (42.9%) versus no septa (23.8%), and minimum height of residual ridge ?4 mm (34.2%) versus > 4 mm (20.5%). These same parameters, except minimum height of residual ridge, also showed an odds ratio above 2. However, none of the comparisons reached statistical significance. CONCLUSION: The present study failed to demonstrate any factor that statistically significantly increased the risk of sinus membrane perforation during SFE using the lateral window approach.

  2. MR imaging of dural sinus thrombosis: a case report

    Energy Technology Data Exchange (ETDEWEB)

    Lee, Si Kyung; Han, Chun Hwan; Lee, Moon Ok; Park, Kyung Joo; Lee, Joo Hyuk [Kang Nam General HosPital, Public Corporation, Seoul (Korea, Republic of)

    1993-01-15

    We present a case of angiographically confirmed transverse and sigmoid sinus thrombosis, image with MR, in a 20 year old male with a history of otitis media and maxillary sinusitis. T1-weighted image demonstrated an iso signal intensity mass with tubular-shaped low signal intensity in right transverse and sigmoid sinus. The thrombus had high signal intensity on T2-weighted image. The signal intensity of the thrombus on Gd-DTPA enhanced T1-weighted image was unusually high similar to that of transverse sinus. Although dural sinus thrombosis has a non-specific MR signal intensity, findings of MRI in this case may serve as an aid in future evaluation of venous thrombosis.

  3. Computed Tomography (CT) -- Sinuses

    Medline Plus

    Full Text Available ... produces images that also show a patient's paranasal sinus cavities. The paranasal sinuses are hollow, air-filled spaces located within the ... sinuses that are filled with fluid or thickened sinus membranes . help diagnose sinusitis . top of page How ...

  4. Selecting the best approach to the frontal sinus.

    Science.gov (United States)

    Philpott, Carl M; McKiernan, David C; Javer, Amin R

    2011-01-01

    The Messerklinger technique is an endoscopic approach to sinus surgery designed to be minimally invasive and preserve mucosa and hence physiological function. More recently there have been advocates for more radical endoscopic approaches to the frontal sinus such as the Modified Lothrop. This review discusses different approaches to frontal sinus surgery including any advantages and disadvantages to each approach. After examining the evidence from the literature, meticulously performed endoscopic frontal sinusotomy with or without computer guidance appears to be the most effective minimally invasive procedure for treating chronic frontal sinusitis secondary to outflow tract obstruction. Properly performed, it is almost always effective in dealing with even the most diseased frontal sinus. It offers clear advantages in reducing complications and recurrence rates in frontal sinus disease, even for revision cases. PMID:22319722

  5. Some anatomical variation of paranasal sinuses using sinus endoscopic approach on "cadaver" in Isfahan, Iran

    Directory of Open Access Journals (Sweden)

    Nezamoddin Berjis

    2014-01-01

    Full Text Available Background: Due to the anatomical variations of the paranasal sinuses and its great importance in sinus surgery, as this area is in very close proximity to vital structures including the optic nerve, carotid artery, and skull base, anatomical knowledge of this area is of high importance. The purpose of this study is defining a full and clear impression of paranasal sinus anatomy and its variations as a model for the human population of the country. Materials and Methods: This study was conducted on 45 cadavers in Isfahan forensic Medicine center during 2010 to 2011. Nasal and paranasal sinuses endoscopic dissection was done with (zero and 30 o lenses (Olympus. The methods of performed dissection were via the Stamberger technique. Results: This study showed that 88.9% (40 cases of middle turbinates were in a typical form, while 6.7% (3 cases were in medial and only 4.4% (2 cases were in the lateral form. We also observed 88.9% (40 cases with Agger nasi cells, 37.8% (17 cases with Onodi cells, 28.9% cases with accessory Ostia of maxillary sinus (13 cases, and 15.6% of the cases (7 cases with concha bullosa. The position of the maxillary sinus ostium was as follows. The inferior 1/3 of hiatus semilunaris in 38 (84.5%, superior 1/3 of hiatus semilunaris in 4 (4.4%, middle 1/3 of hiatus semilunaris in 5 (11.1%. The sphenoid ostia in 53.3% (24 cases were slit shape, 28.9% (13 cases oval, and 17.8% (18 cases were round shape. Conclusion : Our survey showed that the distance between anterior nasal spine and anterior wall of the sphenoid sinus was within 7.6 ± 0.2 cm SD.

  6. Evaluation study of the sinus lift technique in combination with autologous bone augmentation in dogs' frontal sinus. Limited cone beam CT image and histopathological analyses

    Energy Technology Data Exchange (ETDEWEB)

    Takahashi, Tatsuo [Tokyo Women' s Medical Coll. (Japan). School of Medicine

    2002-08-01

    The posterior area of the maxilla has often been considered inadequate for the insertion of dental implants due to insufficient height of the alveolar bone by atrophic reduction and the maxillary sinus expansion. This anatomic problem may be resolved with augmentation of the floor of the maxillary sinus. The purpose of this study is to evaluate the effectiveness of sinus lift and grafting with the iliac crest bone performed in the dog frontal sinus as a model of the human maxillary sinus. Time course evaluations of bone volume after insertion of implants were performed by the limited cone beam CT (Ortho-CT), histopathological study and NIH-image digital analysis. New bone formation was identified as early as 2 weeks after the implant insertion. The bone volume was increased continuously until 13th week. High-density bone was found in the cervix of the implant after 26 weeks. However, the bone was lost at apex area of the implant and air cavity of the frontal sinus expanded. Ortho-CT findings showed good correlation with histopathological course of the lesion and bone volume identified by the NIH image analysis. The results revealed first time whole course of the bone remodeling after implant insertion into the frontal sinus of a dog. The data also provide an appropriate timing of the implant prosthesis and promise usefulness of the Ortho-CT in planning efficient implant treatment. (author)

  7. Sinusitis: imaging findings before and after treatment

    International Nuclear Information System (INIS)

    Full text: Learning objectives: To present the possibilities of Computed Tomography (CT) as a gold standard for investigation of inflammatory sinunasal diseases. The role of CT is very important in acute rhinosinuitis when sign and symptom suggest complication and in chronic sinusitis, especially before endonasal sinus surgery, for postoperative assessment and in cases of recurrences. As this method allows optimal differentiation of the air, bone and soft tissues it is able to achieve an exact visualization of a particular anatomic structures. The best representation in coronal plane of ostiomeatal unit OMU/maxillary sinus ostia, infundibulum, hiatus semilunaris, and the middle nasal turbinate and lateral nasal wall, and in axial plane of the relation: ethmoidal cells:orbit and sphenoidal sinus:internal carotid artery, are one of the biggest advantages of CT. This examination displayed not only the regional anatomy and the spread of the inflammation in the sinuses and adjacent regions, but also aided the operator in his choice of surgical approach. As CT is the best imaging modality in the evaluation of the paranasal sinuses, the question about the radiation dose became very important. The dose was reduced to protect the eye lenses, with no loss of image quality and no signification noise increase. There are many different techniques and recommendations for the CT study of the sinuses, but still no definite idea about the optimal technique for investigation in this region. This is the aim of the lecture - to develop an optimal study for preoperative and postoperative CT examination of the paranasal sinuses

  8. Computed Tomography (CT) -- Sinuses

    Medline Plus

    Full Text Available ... the Sinuses? What is CT (Computed Tomography) of the Sinuses? Computed tomography, more commonly known as a ... of page What are some common uses of the procedure? CT of the sinuses primarily is used ...

  9. CT and MR findings of mycotic infection of the paranasal sinus: Differentiation from sinonasal neoplasm

    International Nuclear Information System (INIS)

    When a soft tissue mass in the bony wall of the paranasal sinus is present. It is difficult to make a distinction between tumor and inflammatory mass on CT. Fungal sinusitis may have soft tissue attenuation on the bony wall of the sinus, bony sclerosis, focal bony destruction, and calcific areas on CT. This is a report of four proven cases of fungal sinusitis, aspergillosis in 3 cases and mucormycosis in 1 case. All 4 patients had CT and one patient had MRI. On CT, bony sclerosis and destruction were well visualized in all cases. On MRI, mycetoma in the maxillary sinus was hypointense on T1 weighted images and more hypointense on T2 weighted images. Although CT appears to be the best modality for initial examination of the patient with sinusitis, the differentiation of fungal sinusitis from tumor mass or other entity may be better accomplished with MRI

  10. CT and MR findings of mycotic infection of the paranasal sinus: Differentiation from sinonasal neoplasm

    Energy Technology Data Exchange (ETDEWEB)

    Lee, Kil Woo; Lim, Hyo Keun; Seo, Gwy Suk; Bae, Sang Hoon [College of Medicine, Hallyum University, Seoul (Korea, Republic of); Lee, Shin Hyung [National Medical Center, Seoul (Korea, Republic of)

    1992-03-15

    When a soft tissue mass in the bony wall of the paranasal sinus is present. It is difficult to make a distinction between tumor and inflammatory mass on CT. Fungal sinusitis may have soft tissue attenuation on the bony wall of the sinus, bony sclerosis, focal bony destruction, and calcific areas on CT. This is a report of four proven cases of fungal sinusitis, aspergillosis in 3 cases and mucormycosis in 1 case. All 4 patients had CT and one patient had MRI. On CT, bony sclerosis and destruction were well visualized in all cases. On MRI, mycetoma in the maxillary sinus was hypointense on T1 weighted images and more hypointense on T2 weighted images. Although CT appears to be the best modality for initial examination of the patient with sinusitis, the differentiation of fungal sinusitis from tumor mass or other entity may be better accomplished with MRI.

  11. Non-grafted sinus implants in periodontally compromised patients: a time-to-event analysis

    DEFF Research Database (Denmark)

    Ellegaard, Birgit; Baelum, Vibeke; Kølsen-Petersen, Jens

    2006-01-01

    This study reports the results of implant therapy involving a sinus membrane lift and of conventional implant therapy in 68 periodontally compromised patients treated between June 1990 and June 2002. Patients had at least two implants inserted, one of which was placed in the maxillary sinus region following fenestration of the lateral sinus wall and lifting of the sinus membrane. Two implant systems were used: a two-stage system (Astra) and a one-stage system (ITI). Annual follow-up visits inclu...

  12. Two unique cases of calcifying cystic odontogenic tumor in the maxillary posterior region.

    Science.gov (United States)

    Chindasombatjaroen, Jira; Poomsawat, Sopee; Boonsiriseth, Kiatanant

    2014-10-01

    A calcifying cystic odontogenic tumor (CCOT) is an uncommon odontogenic tumor with a predilection for the anterior part of the jaws. We report on 2 cases of CCOT in the posterior maxilla involving the maxillary sinus. In the first case, conventional radiography found a well-defined unilocular lesion. Internal calcification was identified on cone beam computed tomography (CBCT) images. Radiographically, the second case showed 2 large locules with a large complex odontoma and an embedded third molar. By revealing the internal calcification of the lesion, CBCT was helpful in the differential diagnosis of the first case. In both cases, CBCT illustrated the tumor extension and the relationship of the tumor to the maxillary sinus. Therefore, CBCT was an important tool for developing effective treatment plans for lesions in the posterior maxillary region. PMID:25201118

  13. Controlled hydrostatic sinus elevation: a novel method of elevating the sinus membrane.

    Science.gov (United States)

    Kao, Daniel W K; DeHaven, Harold A

    2011-12-01

    Maxillary sinus elevation surgery has been practiced successfully over the past several decades with good outcomes, but tears and perforations still occur in significant numbers. The presumed cause of these problems is the fact that all methods currently used place "point sources" of lifting pressure on the Schneiderian membrane. A new procedure, controlled hydrostatic sinus lift, is presented herein as a safer, more controlled "lifting pressure" which simultaneously places equal force per square millimeter of bone-membrane interface. Hydraulic pressure in a closed system places equal pressure on all surfaces within the system, thereby eliminating "point sources" of pressure and gently elevating the Schneiderian membrane equally at all points of attachment. This controlled hydrostatic sinus lift procedure is accomplished by using a calibrated, hand-controlled pump and in-line pressure sensor meter. PMID:22067599

  14. Endoscopic Sinus Surgery

    Science.gov (United States)

    ... very quickly), sinus infections that spread to the eye, face or brain, nasal polyps (See Figure, black arrows) , ... have four sinuses on each side of their face, for a total of eight sinuses. ... are between your eyes, the sphenoid sinuses are almost exactly in the ...

  15. SINUS FLOOR AUGMENTATION WITH BONE BLOCK GRAFTING AND SIMULTANEOUS IMPLANT PLACEMENT.

    Directory of Open Access Journals (Sweden)

    George S. Manev

    2013-07-01

    Full Text Available Placement of dental implants in the posterior maxillary edentulous areas is often compromised by the limited volume of bone due to the anatomy of the maxillary sinuses. In such cases, the technique of Sinus Lift is indicated to provide a sufficient volume of hard tissue in order to achieve primary stability at implant placement. Simultaneous augmentation of the sinus floor and implant placement is severely limited by the amount of residual bone of the floor of the sinus.A clinical case of minimal residual bone at the bottom of the sinus is demonstrated. A sinus floor augmentation with bone block harvested from the mandibular symphysis is performed. The bone block is placed in the sinus after membrane elevation and fixed with a screw to the sinus floor. After fixation of the bone block in the sinus implant (10/4.1 mm TSV (Zimmer is placed in reconstructed bone with good primary stability. Healing occurs without complications and the third month X-ray showed normal density of bone around the implant. The technique is very sensitive to surgeon’s skills.

  16. CT characterization of developmental variations of the paranasal sinuses in cystic fibrosis

    International Nuclear Information System (INIS)

    Purpose: To describe variations of paranasal sinus development in patients with cystic fibrosis (CF) and in non-CF patients examined for inflammatory sinonasal disease. We focused on anatomic variants that predispose to orbital and cerebral penetration during functional endoscopic sinus surgery (FESS), e.g. hypoplasia of the maxillary sinus and low ethmoid roof. Material and Methods: One hundred and sixteen CF patients (3-54 years, median 18) and 136 control patients (7-51 years, median 31) were examined with coronal CT of the paranasal sinuses. CF patients were grouped according to number of confirmed mutations: CF-2 (n=70), CF-1 (n=32), CF-0 (n=14). CT images were evaluated with respect to paranasal sinus development, pneumatization variants and bony variants. Results: Frontal sinus aplasia and maxillary, ethmoid, and sphenoid sinus hypoplasia were markedly more frequent in CF-2 than in control patients. No CF-2 patient had pneumatization variants such as Haller cells or concha bullosa. Low ethmoid roof was seen in 30% of CF-2 children, but in no control children. CF-1 and CF-0 groups had prevalences of aplasia and hypoplasia intermediate to that of CF-2 and control patients. Conclusion: Genetically verified CF patients had less developed sinuses, lacked pneumatization variants, and more often had anatomic variants that predispose to complications during FESS. Normally developed sinuses and pneumatization variants in some genetically unverified CF patients (CF-1, CF-0) suggest that these patients may be erroneously diagnosed

  17. CT characterization of developmental variations of the paranasal sinuses in cystic fibrosis

    Energy Technology Data Exchange (ETDEWEB)

    Eggesboe, H.B. [Univ. of Oslo (Norway). Aker Hospital; Soevik, S. [Univ. of Oslo (Norway). Inst. of Physiology; Doelvik, S.; Eiklid, K. [Univ. of Oslo (Norway). Ullevaal Hospital; Kolmannskog, F. [Sentrum Roentgeninst., Oslo (Norway)

    2001-09-01

    Purpose: To describe variations of paranasal sinus development in patients with cystic fibrosis (CF) and in non-CF patients examined for inflammatory sinonasal disease. We focused on anatomic variants that predispose to orbital and cerebral penetration during functional endoscopic sinus surgery (FESS), e.g. hypoplasia of the maxillary sinus and low ethmoid roof. Material and Methods: One hundred and sixteen CF patients (3-54 years, median 18) and 136 control patients (7-51 years, median 31) were examined with coronal CT of the paranasal sinuses. CF patients were grouped according to number of confirmed mutations: CF-2 (n=70), CF-1 (n=32), CF-0 (n=14). CT images were evaluated with respect to paranasal sinus development, pneumatization variants and bony variants. Results: Frontal sinus aplasia and maxillary, ethmoid, and sphenoid sinus hypoplasia were markedly more frequent in CF-2 than in control patients. No CF-2 patient had pneumatization variants such as Haller cells or concha bullosa. Low ethmoid roof was seen in 30% of CF-2 children, but in no control children. CF-1 and CF-0 groups had prevalences of aplasia and hypoplasia intermediate to that of CF-2 and control patients. Conclusion: Genetically verified CF patients had less developed sinuses, lacked pneumatization variants, and more often had anatomic variants that predispose to complications during FESS. Normally developed sinuses and pneumatization variants in some genetically unverified CF patients (CF-1, CF-0) suggest that these patients may be erroneously diagnosed.

  18. Clinical evaluation of asymptomatic sinus disease detected by MRI

    International Nuclear Information System (INIS)

    The detection of lesions of the paranasal sinuses as incidental findings during magnetic resonance imaging of patients suspected of intracranial disease who have no nasal symptoms has been far more common than we expected. The present study was performed on 325 patients with a mean age of 60.7 years. Medical histories were taken whether they had any nasal symptoms or not. Asymptomatic sinus disease was present in 41.6% of the 257 patients who had no nasal symptoms, and 9.7% of the patients had either marked mucosal thickening, excessive fluid or polyps in the maxillary sinuses. Although the mean age of these patients was comparatively high, we can infer that 1 in 10 have relatively severe sinus lesions. Mucociliary transport time was measured using the saccharin method in 15 patients who had sinus disease but no nasal symptoms. The mean transport time was 15.6 minutes and within normal limits. Routine ENT examination revealed no lesions in the nasal cavity of any of the subjects. We classified the patients with asymptomatic sinus disease into two groups -- group A: patients with sinus disease associated with some nasal manifestations but who did not complain about them, and group B: patients who had sinus disease but did not have any nasal problems. Group B represents genuine asymptomatic sinus disease in the narrow sense. Most asymptomatic patients in this study appeared to belong to group B. They had some sinus disease, but because their mucociliary function in their nasal cavity was normal, they did not have any nasal symptoms. When we find patients with asymptomatic sinus disease, we have to determine which group they belong to by examining their nasal cavity and measuring their saccharin time. Patients in group A should be medically treated, but those in group B should be followed without medical treatment. (author)

  19. Clinical evaluation of asymptomatic sinus disease detected by MRI

    Energy Technology Data Exchange (ETDEWEB)

    Iwabuchi, Yasuo; Hanamure, Yutaka; Hirota, Johji; Ohyama, Masaru [Kagoshima Univ. (Japan). Faculty of Medicine

    1994-12-01

    The detection of lesions of the paranasal sinuses as incidental findings during magnetic resonance imaging of patients suspected of intracranial disease who have no nasal symptoms has been far more common than we expected. The present study was performed on 325 patients with a mean age of 60.7 years. Medical histories were taken whether they had any nasal symptoms or not. Asymptomatic sinus disease was present in 41.6% of the 257 patients who had no nasal symptoms, and 9.7% of the patients had either marked mucosal thickening, excessive fluid or polyps in the maxillary sinuses. Although the mean age of these patients was comparatively high, we can infer that 1 in 10 have relatively severe sinus lesions. Mucociliary transport time was measured using the saccharin method in 15 patients who had sinus disease but no nasal symptoms. The mean transport time was 15.6 minutes and within normal limits. Routine ENT examination revealed no lesions in the nasal cavity of any of the subjects. We classified the patients with asymptomatic sinus disease into two groups -- group A: patients with sinus disease associated with some nasal manifestations but who did not complain about them, and group B: patients who had sinus disease but did not have any nasal problems. Group B represents genuine asymptomatic sinus disease in the narrow sense. Most asymptomatic patients in this study appeared to belong to group B. They had some sinus disease, but because their mucociliary function in their nasal cavity was normal, they did not have any nasal symptoms. When we find patients with asymptomatic sinus disease, we have to determine which group they belong to by examining their nasal cavity and measuring their saccharin time. Patients in group A should be medically treated, but those in group B should be followed without medical treatment. (author).

  20. Congenital sinus cyst in a foal

    International Nuclear Information System (INIS)

    Radiography and endoscopy of a 17-day-old Standardbred foal that had right-sided facial swelling and dyspnea since birth revealed a soft tissue mass in the right nasal passage and right maxillary and frontal sinuses. A bone flap was used to expose the mass, and a fluid-filled structure was removed surgically. After surgery, the dyspnea was alleviated. The facial deformity resolved by the time the foal was 6 months old. The upper airway obstruction was absent clinically and endoscopically by the time the foal was 17 months old

  1. Three dimensional analysis of CT image on naso-maxillary complex in cleft lip and palate patients

    Energy Technology Data Exchange (ETDEWEB)

    Ma, Rong-Rong [Tokyo Medical and Dental Univ. (Japan). School of Dentistry

    1994-12-01

    This study was designed to clarify the three dimensional features of naso-maxillary complex in cleft lip and palate (CLP) by using computed tomography (CT) and to examine its change following an upper dental arch expansion. Sequential CT images with 2mm-thickness were obtained for 11 unilateral CLP boys (UCLP), 6 bilateral CLP boys (BCLP) and 4 boys without cleft (non-cleft). Additionally, two serial sets of upper dental cast before and after dental arch expansion coupled with CT images in UCLP were used to evaluate the effect of dental arch expansion on the naso-maxillary complex. UCLP demonstrated a remarkable naso-maxillary deformity characterized by a decreased volume of maxillary sinus in comparison with the non-cleft patients. Both the volume and shape of nasal cavity were significantly different between the cleft and non cleft side. Naso-maxillary morphology of BCLP, however, was similar to that of the non cleft except for the decreased volume of alveolar arch. Comparative study of UCLP and BCLP showed a significant difference in naso-maxillary morphology. There were some significant correlations between the dental arch expansion and change of each naso-maxillary component, suggesting the effect of expansion stress on the naso-maxillary complex in UCLP. However, deformation caused by expansion stress varied, depending on each component of the naso-maxillary complex. (author) 61 refs.

  2. Anterior Maxillary Dentigerous Cyst

    OpenAIRE

    Rohilla, Monika; Marwah, Nikhil; Tyagi, Rishi

    2009-01-01

    Dentigerous cyst is a development odontogenic cyst, which apparently develops by accumulation of fluid between reduced enamel epithelium and the tooth crown of an unerupted tooth. It is one of the most prevalent types of odontogenic cysts associated with an erupted, developing or impacted tooth, particularly the mandibular 3rd molars, the other teeth that are commonly affected are maxillary canines and third molars. The present case report describes the surgical enucle...

  3. Radicular cyst of primary tooth associated with maxillary sinus

    Science.gov (United States)

    Bahadure, Rakesh N; Khubchandani, Monika; Thosar, Nilima R; Singh, Rajeev Kumar

    2013-01-01

    Radicular cyst is one of the most common odontogenic cystic lesions found in the jaws. It is inflammatory in nature and found mostly in relation to a non-vital tooth. It usually presents at a later stage in life because the formation of the cyst is the last step in the progression of inflammatory events after a periapical infection. The cyst usually goes unnoticed because of its painless nature and small size. We present the clinical, radiographic and histological characteristics of a radicular cyst along with its management. Cystic sac was removed surgically under general anaesthesia after the elevation of the mucoperiosteal flap. Histopathologically, the cystic sac was consistent with the features of a radicular cyst. Follow-up period of 21?months showed improved radiographical appearance on Coned Beam CT. Vestibular deepening was planned as a future treatment in the same region. PMID:23833085

  4. Radicular cyst of primary tooth associated with maxillary sinus

    OpenAIRE

    Rakesh N. Bahadure; Khubchandani, Monika; Thosar, Nilima R; Rajeev Kumar SINGH

    2013-01-01

    Radicular cyst is one of the most common odontogenic cystic lesions found in the jaws. It is inflammatory in nature and found mostly in relation to a non-vital tooth. It usually presents at a later stage in life because the formation of the cyst is the last step in the progression of inflammatory events after a periapical infection. The cyst usually goes unnoticed because of its painless nature and small size. We present the clinical, radiographic and histological characteristics of a radicul...

  5. Angulated Implants: An Alternative to Bone Augmentation and Sinus Lift Procedure: Systematic Review

    OpenAIRE

    Asawa, Nikhil; Bulbule, Nilesh; Kakade, Dilip; Shah, Riddhi

    2015-01-01

    Rehabilitation of completely edentulous patients with implant becomes challenging due to reduced amount of bone available and pneumatisation of maxillary sinus or both. To successfully treat such patients, prior to implant placement, patient has to undergo invasive procedures like sinus lift and/or bone augmentation which is not possible many time due to many reasons. This article focuses on an alternative treatment procedure in which two posterior implants are placed at an angle and two ante...

  6. Minimally invasive endoscopic removal of a massive trabecular juvenile ossifying fibroma of the paranasal sinuses

    OpenAIRE

    Marglani, Osama A.; Mohammed Y. Kassab; Raza, Syed A

    2014-01-01

    An 11-year-old female patient presented with left-sided nasal obstruction and upward displacement of the left eye of 3 months duration. Clinical examination revealed a firm mass in the left nasal cavity. A CT scan showed a massive tumor involving the left maxillary sinus with extension into the ethmoid sinus, and encroaching on the left orbit. Histopathological examination revealed trabecular juvenile ossifying fibroma, which was removed via a transnasal endoscopic surgery by the Otorhinolary...

  7. Functional endoscopic sinus surgery in pediatric population

    Directory of Open Access Journals (Sweden)

    Farhadi M

    1997-07-01

    Full Text Available This is a report of 30 cases of pediatric functional endoscopic sinus surgery (FESS. 28 of these children had chronic sinusitis and 2 had acute sinusitis the most common chief complaints were: 1 Chronic Rhinorea 2 Nasal obstruction 3 Chronic cough. Systemic predisposing conditions were allergy in 7 pts and immotile cilliasyndrome in 2 pts, all of the procedures were performed under general anesthesia. The most common procedures were: 1 Resection of lateral part of the middle turbinate. 2 Antrostomy of the maxillary sinus. 3 Turbinoplasty of the inf turbinate. 4 Anterior erhnoidectomy, (Messerklinger, Approach. There were no kajor complication and only 3 cases of minor complication (2=regeneration of polipoid tissues, 1 synechia occurred. The duration of follow up was from 6-18 mths recovery occurred in 26 pts. Two of the pts didn't respond because of severe allergy and were referred to immunologist for further therapy 2 others didn't respond appropriately because of immotile cilliasyndrome

  8. Morpho-functional evaluation of osteomeatal complex in chronic sinusitis by coronal CT

    International Nuclear Information System (INIS)

    The objective was to determine whether or not there exists a clinical-radiological correlation in chronic sinusitis of anterior paranasal sinus and to quantitatively evaluate the importance of osteomeatal complex structures and anatomic variants in chronic sinusitis etiopathology. We analyzed 208 nasal fossae with high-resolution and low-irradiation coronal computed tomography. The following inclusion criteria we established: one case control and one control group. We considered any chronic thickness of sinusal mucosal as a radiological indicator of chronic sinusitis. We evaluated the mucosal thickness of internal, external, superior and inferior maxillary walls, the addition of four maxillary walls and the maximal mucosal thickness in frontal sinus and anterior ethmoidal cells. We also obtained 15 parameters of osteomeatal complex structures and anatomical variants in each nasal fossa, and we correlated them statistically with chronic sinusitis radiological indicators. Uncinate process length is the only anatomic element from which we have been able to obtain a statistically significant cut point between case and control groups, but only with a sensitivity of 51.6%, specificity of 71.2%, positive predictive value of 74.2%, and negative predictive value of 47.9%. No association of radiological parameters exists that can explain chronic sinusitis. (orig.)

  9. Incidental sinus abnormalities in 256 patients referred for brain MRI

    Directory of Open Access Journals (Sweden)

    Ghanaati H

    2007-06-01

    Full Text Available Background: Imaging abnormalities in the paranasal sinuses are regularly noted as incidental findings on MRI, however, little is known about their prevalence in the Iranian population. The purpose of this study was to classify these findings in the paranasal sinuses as seen on MRI and to investigate the prevalence, according to site and type of paranasal abnormality. Methods: In this cross-sectional study, the T2-weighted axial MRI of 256 patients with diseases unrelated to their paranasal sinuses were reviewed between May 2002 and June 2003. The findings were categorized according to the anatomic location and the imaging characteristics of the abnormality. The abnormalities recorded included total sinus opacification, mucoperiosteal thickening >5mm, air fluid levels and retention cysts or polyps. Unilateral or bilateral involvement and septal deviation were also noted. A sinus was considered normal if it was fully aerated and no soft-tissue density was apparent within the cavity. Results: Among our cases, 111 (43.5% were male and 145 (56.5% were female. Of these patients, abnormalities in one or more of the sinus groups were found in 110 subjects (42.9%, 55.5% of which were male and 44.5% were female (P=0.001. Maxillary sinus abnormalities were observed in 66.4% of the patients, while ethmoid sinus abnormalities were found in 63.6%. Of the ethmoid abnormalities, 21% were found in the anterior section, 9% in the middle ethmoid, and 8% in the posterior ethmoid. The most common abnormality found was mucosal thickening. Among our cases, 23.4% had septal deviation, which was significantly higher among those with sinusitis (29% versus 19.1%; P<0.01. Of those patients with sinus involvement, 16% were involved in the sphenoid sinus and 5% in the frontal sinus. The results obtained from the patients with sinus abnormality revealed that 85% suffered from cough, nasal obstruction, runny nose, facial pain and post nasal discharge and 24% had been diagnosed with chronic sinusitis by physician. Conclusion: Our results showed that there was a high rate of incidental abnormalities in the paranasal sinuses that are unrelated to the patient's presenting problems.

  10. Computed Tomography (CT) -- Sinuses

    Medline Plus

    Full Text Available ... paranasal sinus cavities. The paranasal sinuses are hollow, air-filled spaces located within the bones of the ... and surrounding the nasal cavity , a system of air channels connecting the nose with the back of ...

  11. Approaching chronic sinusitis.

    Science.gov (United States)

    Sarber, Kathleen M; Dion, Gregory Robert; Weitzel, Erik K; McMains, Kevin C

    2013-11-01

    Chronic sinusitis is a common disease that encompasses a number of syndromes that are characterized by sinonasal mucosal inflammation. Chronic sinusitis can be defined as two or more of the following symptoms lasting for more than 12 consecutive weeks: discolored rhinorrhea, postnasal drip, nasal obstruction, facial pressure or pain, or decreased sense of smell. Chronic sinusitis is further classified as chronic sinusitis with polyposis, chronic sinusitis without polyposis, or allergic fungal sinusitis using physical examination, and histologic and radiographic findings. Treatment methods for chronic sinusitis are based upon categorization of the disease and include oral and inhaled corticosteroids, nasal saline irrigations, and antibiotics in selected patients. Understanding the various forms of chronic sinusitis and managing and ruling out comorbidities are key to successful management of this common disorder. PMID:24192597

  12. Computed Tomography (CT) -- Sinuses

    Medline Plus

    Full Text Available ... by defining anatomy or giving further information about tumors of the nasal cavity and sinuses. evaluate sinuses ... Risks There is always a slight chance of cancer from excessive exposure to radiation. However, the benefit ...

  13. Association between implant apex and sinus floor in posterior maxilla dental implantation: A three-dimensional finite element analysis

    OpenAIRE

    YAN, XU; Zhang, Xinwen; CHI, WEICHAO; AI, HONGJUN; Wu, Lin

    2015-01-01

    The aim of the present study was to evaluate the effect of the association between the implant apex and the sinus floor in posterior maxilla dental implantation by means of three-dimensional (3D) finite element (FE) analysis. Ten 3D FE models of a posterior maxillary region with a sinus membrane and different heights of alveolar ridge with different thicknesses of sinus floor cortical bone were constructed according to anatomical data of the sinus area. Six models were constructed with the sa...

  14. Bola fúngica dos seios paranasais: relato de dois casos e revisão de literatura / Fungus ball of the paranasal sinuses: report of two cases and literature review

    Scientific Electronic Library Online (English)

    Guilherme Rasia, Bosi; Gustavo Lisbôa de, Braga; Tobias Skrebsky de, Almeida; Adriana de, Carli.

    2012-06-01

    Full Text Available INTRODUÇÃO: Bola fúngica dos seios paranasais é uma infecção não invasiva que se caracteriza por sua cronicidade, sendo a maioria relacionada com tratamento endodôntico prévio. Acomete principalmente o seio maxilar, embora todos os seios possam ser envolvidos. O principal agente etiológico é o Asper [...] gillus spp. A tomografia computadorizada, devido às apresentações radiológicas características, sugere o diagnóstico que é realizado definitivamente através de análises histopatológicas. O tratamento padrão-ouro é a cirurgia sinusal endoscópica com antrostomia meatal média. OBJETIVO: Relatar dois casos de bola fúngica dos seios paranasais e ressaltar aspectos importantes desta patologia. RELATO DOS CASOS: Caso 1) Paciente do sexo feminino, 78 anos, apresentou-se com queixas de dor facial há 6 meses e história prévia de tratamento endodôntico. Ao exame físico constatou-se a presença de secreção purulenta em meato médio esquerdo. O Raio X apresentou velamento completo do seio maxilar esquerdo, enquanto a tomografia computadorizada mostrou lesão calcificada neste local. Realizou-se sinusotomia que evoluiu bem. Caso 2) Paciente do sexo feminino, 70 anos, procurou atendimento por história de sinusites de repetição. Ao exame físico não se percebeu nenhuma particularidade. A tomografia computadorizada, assim como a ressonância magnética, detectou espessamento da parede mucosa do seio maxilar esquerdo, além de uma massa calcificada. Realizouse a mesma sequência de tratamento e a paciente também evoluiu bem. CONSIDERAÇÕES FINAIS: A infecção fúngica deve ser considerada nos pacientes que se apresentam com sinusite crônica, que não respondem ao uso de antibióticos e que possuem história de manipulação endodôntica. Abstract in english INTRODUCTION: Fungal ball of the sinuses is a not invasive infection that if characterizes for its chronicity, being the majority related with previous endodontic treatment. Affect mainly the breasts to maxillary; even so all the breasts can be involved. The main etiological agent is the Aspergillus [...] spp. The computed tomography, had to characteristic the radiological presentations, suggests the diagnosis that is carried through definitively through histopathological analyses. The treatment standard-gold is the sinus surgery with average meatal antrostomy. OBJECTIVE: Reporting two cases of fungal ball of the sinuses and to stand out important aspects of this pathology. STORY OF THE CASES: Case 1) Patient of the feminine sex, 78 years old, presented itself with complaints of face pain has 6 months and previous history of endodontic treatment. To the physical examination it was evidenced purulent secretion presence in left average meatus. Ray X presented complete veiling of the breasts to maxillary left, while the computed tomography showed injury calcified in this place. Sinusotomy was become fulfilled that evolved well. Case 2) Patient of the feminine sex, 70 years old, looked attendance for history of sinusitis of repetition. To the physical examination no particularity was not perceived. The computed tomography, as well as the magnetic resonance, detected thickening of the mucous wall of the breasts to maxillary left, beyond a calcified mass. It was become fulfilled same sequence of treatment and the patient also evolved well. FINAL CONSIDERATIONS: The fungal infection must be considered in the patients who if present with chronic sinusitis, that they do not answer to the antibiotic use and that they possess history of endodontic manipulation.

  15. Umbilical pilonidal sinus.

    Science.gov (United States)

    Al-Kadi, Azzam S

    2014-07-01

    Pilonidal sinuses are commonly encountered, but their occurrence in the umbilical area is rare. The author presents one such case of an umbilical pilonidal sinus in an obese male patient that presented with recurrent episodes of umbilical discharge. The condition was treated with sinus excision and umbilical reconstruction. There was no recurrence of the disease until one year of follow up. PMID:25505866

  16. Umbilical Pilonidal Sinus

    OpenAIRE

    McClenathan, James H.

    2014-01-01

    Pilonidal sinuses are commonly encountered, but their occurrence in the umbilical area is rare. The author presents one such case of an umbilical pilonidal sinus in an obese male patient that presented with recurrent episodes of umbilical discharge. The condition was treated with sinus excision and umbilical reconstruction. There was no recurrence of the disease until one year of follow up.

  17. Computed tomography in the evaluation of the sphenoidal sinus lesions

    International Nuclear Information System (INIS)

    The sphenoidal sinus lesions, which were documented by sinus CT, were found in 32 sides of sphenoidal sinus of 19 patients seen in 14 months from January 1984 to February 1986. Sphenoiditis was frequently seen as in 17 % in the all poly-sinusitis, and sphenoidals cysts were seen in 4 side in 3 patients. The indications of the sphenoiditis by CT were thickening of the mucosa and opacificasion with soft tissue density. By sphenoid cysts, no contrast enhancement was seen and margins of the cyst wall were smooth and regular with bone erosion. Since erosion of the bone is also seen in Wegener's granulomatosis and carcinoma, the CT image of the bone erosion is not specific to either of them and does not contribute to the definitive diagnosis of malignancy. (author)

  18. A roentgenological study on paranasal sinus infection in leukemias

    International Nuclear Information System (INIS)

    One of the common sites of infection in leukemic patients in paranasal sinus (PNS). The aims of this paper were (1) to evaluate the incidence of PNS infection and (2) to emphasize the need of routine check of PNS roentgenograms in leukemic patients. We analyzed PNS roentgenograms of 177 pathologically proven leukemic patients during the period from January 1980 through December 1986, and following results were obtained. (1) One-hundred-five were men and 72 were women with the age ranging from 2 to 72 years (mean age being 33.2 years). (2) The number of patients with PNS infection was 82 or 46.3%. The incidence was three times higher than that of general population (16%). (3) The age incidence was 85.7% in the 1st decade, 73.9% in the 4th decade, and 36% in 2nd decades in decreasing order. (4) The maxillary sinus was involved in 86.8% and ethmoid sinus in 23.2%. Retention cyst was noted in maxillary sinus in 13.4%.

  19. Peripheral odontogenic fibroma associated with a dilacerated maxillary central incisor: a case report.

    Science.gov (United States)

    Ramachandra, Srinivas Sulugodu; Baliga, Vidya; Prasad, Umesh Chandra

    2011-10-01

    The authors report a case of a 16-year-old male with peripheral odontogenic fibroma (POF) in the anterior maxilla associated with dilaceration of a tooth in its vicinity. A solitary, exophytic and sessile growth was present between the maxillary right central and lateral incisors and extended from the labial mucosa to the palatal gingiva. A periapical radiograph of the maxillary right central incisor revealed a shortened and dilacerated root. The growth was excised and sent for histopathologic examination. A diagnosis of POF (World Health Organization type) was rendered. The clinical and microscopic features are discussed. PMID:23738522

  20. Evidence of p53 immunohistochemical overexpression in ethmoidal mucosa of woodworkers

    OpenAIRE

    PIRA, Enrico; Migliaretti, Giuseppe

    2004-01-01

    A high risk of neoplastic transformation of nasal and paranasal sinuses mucosa is related to the occupational exposure to wood dust, however no conclusive data have been reported up to now about morphological precursors of these tumors, mechanisms of carcinogenesis and role of p53 gene. Immunohistochemical overexpression of protein p53 (DO7 clone) by epithelial cells of ethmoidal mucosa was investigated on 60 woodworkers occupationally exposed for a minimum of 10 years, on 50 functional and/o...

  1. A case of myofibroblastic sarcoma in the maxillary region suspected to be radiation-induced

    International Nuclear Information System (INIS)

    Myofibroblastic sarcoma is an extremely rare malignant tumor in the oral and maxillofacial region. We report a case of myofibroblastic sarcoma probably induced by irradiation for maxillary sinus cancer. The patient was a 61-year-old man whose present history was as follows. In October 1989, he presented with pain in the left maxillary molar region. A squamous cell carcinoma of the left maxillary sinus was diagnosed, and he was treated with external irradiation of 50 Gy combined with chemotherapy. Left maxillectomy was done in February 1990. The postoperative course was satisfactory. However, in June 1998, he presented again with a tumor arising in the posterior region of the defect on the left side of the maxilla. Although histopathological examination of a biopsy specimen revealed granulation tissue with inflammatory changes, the tumor grew rapidly. The tumor was therefore suspected to be malignant and was resected under general anesthesia. Histopathological examination revealed atypical and spindle tumor cells with immunohistochemically positive staining for ?-smooth muscle actin, desmin, vimentin, and muscle specific actin, but negative staining for h-caldesmon. On the basis of these histopathological and clinical findings, a final diagnosis of a myofibroblastic sarcoma of the maxillary region was made. The lesion was strongly suspected to be a radiation-induced tumor. The patient was followed up for 4 years 5 months after operation. The subsequent course was satisfactory, with no signs of recurrence or distant metastasis. (author)

  2. Surgical endoscopic anatomy of the sphenoid sinus. Structural foundation: tactical and technical.

    Directory of Open Access Journals (Sweden)

    Pérez, Marisa A.

    2011-06-01

    Full Text Available The object of this presentation is to describe the endoscopic anatomy of the sphenoid sinus and its approaches, providing the surgeon with a step to step guide for dissection of then region in lab or everyday surgical practice.The following study was done on cadaveric material and bones with rigid 4mm rigid endoscopes and 0, 30 and 90 grades optics. The chosen approaches were the direct endonasal and transnasal transeptal approach. The sphenoid sinus is the most posterior of all paranasal sinuses. It is located in the middle and inferoposterior part of the sphenoid bone. It shows a variable size and it is surrounded by anatomic structures such as the carotid artery and the optic nerves, which can be damaged during surgical approach. The optic nerves can protrude inside the sphenoid sinus. In some cases, the horizontal portion of the intracavernous carotid artery protrudes inside of it too. Other anatomic structures are related to the sinus: meninges, the pituitary gland, the optic chiasm and the cavernous sinuses. The floor of the cavernous sinus may show the prominence of the maxillary nerve.Endoscopic anatomy of the sphenoid sinus has its own characteristics whic differ from macroscopic ones. In using an endoscope, interpreting and knowing exactly the anatomic relations in three dimensions, is mandatory for a successful approach to the sphenoid sinus. The sphenoid sinus congregates the interest of multiple specialties, for being a point in common to many approaches of paranasal sinuses, decompressive surgeries of optic nerve, of medial wall of cavernous sinus and sellar region. Endoscopic approach to sphenoid sinus allows the use of a natural orifice and highly respects anatomic structures.

  3. Rinosinusitis maxilar crónica de origen dental / Chronic maxillary rhinosinusitis of dental origin

    Scientific Electronic Library Online (English)

    Claudia, Heider C; Gloria, Ribalta L; Daniel, Bacigalupe R; Karin, Krauss M.

    2014-04-01

    Full Text Available Introducción: La rinosinusitis maxilar de origen dental (RSMD) es una entidad reconocida con una incidencia cercana al 30%. Su diagnóstico puede pasar inadvertido, tanto en la clínica como en las imágenes, llevando a persistencia de sintomatología y fracaso de tratamiento. Objetivo: Describir la pre [...] sentación clínica, diagnóstico y tratamiento de pacientes con rinosinusitis maxilar de origen dental. Material y método: Reporte de casos. Se revisaron historias clínicas, imágenes radiológicas, protocolos operatorios y cultivos microbiológicos de pacientes con diagnóstico de rinosinusitis de origen dental atendidos en Clínica Las Condes. Resultados: Diez pacientes, siete mujeres y tres hombres con edad promedio de 63 años. Descarga posterior y rinorrea fueron los síntomas más frecuentes. El estudio incluyó radiografía dental y tomografía computarizada de cavidades paranasales. Las complicaciones secundarias a extracciones dentales y de implantes dentales fueron las etiologías más frecuentes, siendo el primer molar la pieza dental más comprometida. Todos los casos fueron manejados en conjunto por equipo médico y odontológico. Ocho pacientes requirieron tratamiento quirúrgico y 5 de ellos además procedimientos dentales asociados. La flora responsable fue mixta aerobia y anaerobia. Conclusión: En pacientes rebeldes a tratamiento y con síntomas unilaterales, se debe tener un alto índice de sospecha y buscar dirigidamente patologías dentales que expliquen cuadros rinosinusales máxilo-etmoidales. Abstract in english Introduction: Odontogenic maxillary sinusitis is a well-recognized condition and accounts for approximately 30% of maxillary sinusitis cases. The diagnosis can be missed leading to failure in medical and surgical treatments. Aim: To describe clinical features, diagnosis procedures and treatment of o [...] dontogenic maxillary sinusitis. Material and method: Case Report. We retrospectively reviewed medical records, radiologic characteristic, surgical findings and intraoperative microbial cultures of patients with diagnosis of odontogenic sinusitis at Clínica Las Condes. Results: 10 patients were identified, 7 females and 3 males with a mean age of 63 years. Posterior discharge and rhinorrhea were the most common symptoms. Dental x-rays and paranasal sinus CT-scans were performed in all patients. Iatrogenic causes, which include dental implants and dental extractions, were the most common etiology and the 1st molar was the dental piece most frequently involved. Both otolaryngologists and dentistsworked together in all cases. 8 patients had endoscopic sinus surgery and five of them received concomitant management of the dental origin. Polymicrobial cultures were obtained. Conclusions: Otolaryngologists must have a high index of suspicion and look for an odontogenic cause in individuals with unilateral maxillary and ethmoidal symptoms, resistant to conventional sinusitis therapy.

  4. Carotid sinus syndrome.

    Science.gov (United States)

    Amin, Vaibhav; Pavri, Behzad B

    2015-01-01

    Carotid sinus hypersensitivity, first described less than 65 years ago, is an important and often undiagnosed cause of syncope in the elderly. Its pathophysiology is complex and certain aspects are not completely understood. The timely diagnosis and treatment of this condition can improve morbidity and prevent complications in the elderly. In this article, the prevalence, risk factors, pathophysiology, diagnosis, aspects of carotid sinus massage, and treatment options for the different kinds of carotid sinus hypersensitivity are discussed. PMID:25211534

  5. Mycetoma sans sinuses

    Directory of Open Access Journals (Sweden)

    Saha Sudipta

    2006-01-01

    Full Text Available Mycetoma is a chronic suppurative infection involving the skin, subcutaneous tissue and bone. The hallmark of mycetoma is tumefaction, draining sinuses and the presence of microcolonies called grains. Sinuses develop in all patients with mycetoma within a year of the appearance of the lesion. The following case is reported as no sinuses had developed despite the presence of the lesion for 9 years, posing a diagnostic dilemma.

  6. CT an MR imaging of the paranasal sinuses in cystic fibrosis. Correlation with microbiological and histopathological results

    International Nuclear Information System (INIS)

    Purpose: To compare CT and MR findings of the paranasal sinuses in patients with cystic fibrosis (CF) with microbiology and histopathology. Further, to compare microbiology from the maxillary sinuses, nasopharynx and sputum. Material and methods: CT and MR imaging of the paranasal sinuses were performed in 10 CF patients. Endoscopy and maxillary sinus aspirates were obtained (guided by the MR findings) and analyzed microbiologically and histologically. Samples from the nasopharynx and sputum were analyzed microbiologically. Results: CT and MR were equal in displaying the extent of soft tissue masses, which at CT were homogeneous, while MR showed heterogeneous signals. MR images also demonstrated circumscribed areas with signal void at the STIR sequence with corresponding high to intermediate signal at the T1-weighted sequence. P. aeruginosa was frequently cultured from these areas which we named the 'black hole sign'. Maxillary sinus cultures revealed the same bacteria as nasopharynx and sputum cultures combined. Conclusion: MR images were superior to CT in differentiating soft tissue masses in the paranasal sinuses in CF patients. Bacteria with potential for specialized iron uptake mechanisms were present in areas with signal void at the STIR sequence. Our hypothesis is that the MR 'black hole sign' can be explained by paramagnetic properties related to bacterial agents. (orig.)

  7. Bronchiectasis and sinusitis

    International Nuclear Information System (INIS)

    The paper refers to bronchiectasis and sinusitis, in a Patient 27 year old, with square of two days of chill evolution, fever, general uneasiness, migraine, cough, rhinorrhoea, purulent expectoration and dyspnoea. She refers sinusitis antecedents before three months, managed medically and situs in versus, diagnosed six years before

  8. FRONTAL SINUS APLASIA

    Directory of Open Access Journals (Sweden)

    ANUJ JAIN

    2013-03-01

    Full Text Available Paranasal sinuses are prone to a great diversity of anomalies. It is important for surgeons to be aware of variations that may predispose patients to increased risk of intraoperative complications and help avoid possible complications and improve success of management strategies. Plane x-rays can be widely used to map sinus anatomy prior to surgical intervention to limit morbidity.The frontal sinus has been used for personal identification since the early part of the 20th century as a result of its tremendous interindividual variation. The frontal sinus is present in approximately 90% of adults. However, some populations have a higher proportion of people without a frontal sinus. This study investigated the frequency of the absence of frontal sinus in Karnataka region of India. The present study was performed retrospectively on radiographs from a series of 238 cases. Abilateral absence and a unilateral absence of sinuses were found in 6(2.5 % and 2(0.84 % of cases, respectively. The clinical significance of the frontal sinuses and their absence are also discussed.

  9. Anatomic Variation of Sphenoid Sinus and Related Structures in Libyan Population: CT Scan Study

    Directory of Open Access Journals (Sweden)

    Hewaidi GH

    2008-01-01

    Full Text Available Background: Sphenoid sinus is the most inaccessible paranasal sinus, enclosed within the sphenoid bone and intimately related to numerous vital neural and vascular structures. Anatomic variation of the sphenoid sinus is well documented and may complicate surgery in such a place. Objective: To outline the surgically risky anatomic variants of the sphenoid sinus as well as the variable relationships between the sinus and related neurovascular structures, for the safe removal of intrasphenoid and pituitary lesions. Materials and Methods: We undertook a prospective review of 300 paranasal sinus CT scans of Libyan patients; coronal CT scans were obtained by special parameter techniques. We assessed pneumatization of pterygoid process (PP, anterior clinoid process (ACP, and greater wing of sphenoid (GWS; we also examined protrusion and dehiscence of internal carotid artery (ICA, optic nerve (ON, maxillary nerve (MN, and vidian nerve (VN into the sphenoid sinus cavity. Results: Pneumatization of PP, ACP, and GWS were seen in 87 (29%, 46 (15.3%, and 60 patients (20%, respectively. Protrusion of ICA, ON, MN, and VN were noticed in 123 (41%, 107 (35.6%, 73 (24.3%, and 81 patients (27%, respectively; dehiscence of these structures was encountered in 90 (30%, 92 (30.6%, 39 (13%, and 111 patients (37%, respectively. Statistically, there was a highly significant association between ACP pneumatization and ICA protrusion, ACP pneumatization and ON protrusion, PP pneumatization and VN protrusion; and GWS pneumatization and MN protrusion (p-value < 0.001. Conclusion: The sphenoid sinus is highly variable; this variability necessitates a comprehensive understanding of the regional sphenoid sinus anatomy by a detailed CT scan sinus examination before surgery in and around the sinus. This study indicates the possibility of a racial anatomical variation of the sphenoid sinus in the Libyan population.

  10. Computed tomography evaluation of autogenous graft in sinus lift surgery

    International Nuclear Information System (INIS)

    The objective was to quantify bone formation within autogenous bone grafts and autogenous bone grafts in combination with platelet-rich plasma obtained either from apheresis or centrifugation using computed tomography. This prospective, double-blind study was conducted in 34 male and female adult patients (mean age of 28 years and 8 months), with either unilateral or bilateral pneumatization of the maxillary sinuses, requiring bone graft for dental implant. All patients were submitted to computed tomography examinations prior and six months after sinus lift surgery. Fifty-three maxillary sinuses were operated and divided into three distinct groups: autogenous bone graft, autogenous bone graft in combination with platelet-rich plasma obtained by centrifugation, and autogenous bone graft in combination with platelet-rich plasma obtained by apheresis. The results showed that computed tomography demonstrated bone growth in height and width between the initial and the follow-up computed tomography scans in all three groups. However, no statistical difference was found either for bone height or width. It was concluded that clinical evidence demonstrates the effectiveness of autogenous bone grafts, particularly when used in combination with bone growth factors such as platelet-rich plasma, which allow prosthetic and functional restoration of maxillofacial structures through fixation of dental implants. (author)

  11. Concha bullosa: frequency and appearances on CT and correlations with sinus disease in 308 patients with chronic sinusitis

    International Nuclear Information System (INIS)

    The purposes of this study were to determine the prevalence of concha bullosa in patients with chronic sinusitis, to assess the origin of the pneumatisation (from the anterior or posterior ethmoid cells), and to evaluate the significance of the concha bullosa in the genesis of inflammatory sinus disease. We reviewed the CT studies of 308 patients with chronic sinusitis, assigning four grades of pneumatisation: absent, small, medium and large. Unilateral or bilateral concha bullosa was found in 164 patients (53%). In 79% of cases it was pneumatised via the posterior ethmoidal cells and in 21% via the anterior. A small concha bullosa was associated with abnormalities of the maxillary sinus, ethmoidal cells and ostiomeatal unit respectively in 49%, 28% and 34% of cases, whereas with a large concha bullosa the association was 55%, 36% and 41% respectively on the ipsilateral side and 55%, 32% and 41% on the contralateral side. The usually accepted hypothesis that the concha bullosa may contribute to the pathogenesis of inflammatory sinus disease seems doubtful. (orig.)

  12. Amalgam tattoo: a cause of sinusitis?

    Directory of Open Access Journals (Sweden)

    José Luiz Santos Parizi

    2010-02-01

    Full Text Available Little attention has been paid to the toxicity of silver amalgam fillings, which have been used over the centuries in Dentistry. Amalgam particles may accidentally and/or traumatically be embedded into the submucosal tissue during placement of a restoration and perpetuate in such area. This article presents a case of amalgam tattoo and investigates whether it is related to the patient's repeated episodes of sinusitis. The patient was a 46-year-old woman with a 2 mm diameter radiopaque lesion in the right oral mucosa detected on a panoramic radiograph and presented as a black macula clinically. A complete surgical resection was carried out. The histopathological examination revealed deposits of dark-brownish pigments lining the submucosal tissue with adjacent lymphocytic inflammatory infiltrate and multinucleated giant cells phagocyting pigments. There was a negative staining for both iron and melanin. One year after lesion removal, the patient reported that the sinusitis crises had ceased after repeated episodes for years. It may be speculated that the inflammatory process related to amalgam tattoo seems to lead to a local immune response that causes sinusitis because it enhances the human leukocyte antigen DR (HLA-DR tissue expression.

  13. Amalgam tattoo: a cause of sinusitis?

    Scientific Electronic Library Online (English)

    José Luiz Santos, Parizi; Gisele Alborghetti, Nai.

    2010-02-01

    Full Text Available Little attention has been paid to the toxicity of silver amalgam fillings, which have been used over the centuries in Dentistry. Amalgam particles may accidentally and/or traumatically be embedded into the submucosal tissue during placement of a restoration and perpetuate in such area. This article [...] presents a case of amalgam tattoo and investigates whether it is related to the patient's repeated episodes of sinusitis. The patient was a 46-year-old woman with a 2 mm diameter radiopaque lesion in the right oral mucosa detected on a panoramic radiograph and presented as a black macula clinically. A complete surgical resection was carried out. The histopathological examination revealed deposits of dark-brownish pigments lining the submucosal tissue with adjacent lymphocytic inflammatory infiltrate and multinucleated giant cells phagocyting pigments. There was a negative staining for both iron and melanin. One year after lesion removal, the patient reported that the sinusitis crises had ceased after repeated episodes for years. It may be speculated that the inflammatory process related to amalgam tattoo seems to lead to a local immune response that causes sinusitis because it enhances the human leukocyte antigen DR (HLA-DR) tissue expression.

  14. Sinus biofilms in patients with cystic fibrosis : is adjusted eradication therapy needed?

    DEFF Research Database (Denmark)

    Aanaes, Kasper; Eickhardt, Steffen

    2015-01-01

    The paranasal sinuses can be a focus for colonisation of the cystic fibrosis (CF) lungs with pathogens. In the sinuses, bacteria can adapt to the lung environment and enhance their antibiotic resistance, with biofilm formation thought to be the most important adaptive mechanism, causing recalcitrant disease. The presence of biofilms in CF sinuses is sparsely described. In this descriptive cross-sectional study, the sinus mucosa from 16 CF patients were analysed by fluorescence in situ hybridization using specific peptide nucleic acid (PNA-FISH) probes for Pseudomonas aeruginosa and Staphylococcus aureus to demonstrate the presence of biofilms. Small clusters of biofilm were visualised lining the sinus mucosa of CF patients. Biofilms were found in 10 out of 18 cases; 7 with intermittent lung colonisation, 2 chronically infected, and one lung transplanted patient. Finding P. aeruginosa biofilms in intermittently lung-colonised patients encourage us to intensify the attempt to eradicate pathogenic bacteria from the CF sinuses in an early stage using combined antibiotic therapy in the prolonged exposure of the sinus-mucosal surface.

  15. Sinus biofilms in patients with cystic fibrosis: is adjusted eradication therapy needed?

    DEFF Research Database (Denmark)

    Aanaes, Kasper; Eickhardt, Steffen

    2015-01-01

    The paranasal sinuses can be a focus for colonisation of the cystic fibrosis (CF) lungs with pathogens. In the sinuses, bacteria can adapt to the lung environment and enhance their antibiotic resistance, with biofilm formation thought to be the most important adaptive mechanism, causing recalcitrant disease. The presence of biofilms in CF sinuses is sparsely described. In this descriptive cross-sectional study, the sinus mucosa from 16 CF patients were analysed by fluorescence in situ hybridization using specific peptide nucleic acid (PNA-FISH) probes for Pseudomonas aeruginosa and Staphylococcus aureus to demonstrate the presence of biofilms. Small clusters of biofilm were visualised lining the sinus mucosa of CF patients. Biofilms were found in 10 out of 18 cases; 7 with intermittent lung colonisation, 2 chronically infected, and one lung transplanted patient. Finding P. aeruginosa biofilms in intermittently lung-colonised patients encourage us to intensify the attempt to eradicate pathogenic bacteria from the CF sinuses in an early stage using combined antibiotic therapy in the prolonged exposure of the sinus-mucosal surface.

  16. CT diagnosis of adenoid cystic carcinoma of the nasal cavity and paranasal sinus

    International Nuclear Information System (INIS)

    Purpose: To assess CT findings and their clinical value in the diagnosis of adenoid cystic carcinoma (ACC) of the nasal cavity and paranasal sinus. Materials and methods: Pre-treatment CT findings in 17 histologically proven cases of ACC of the nasal and paranasal sinus were reviewed. 3 cases had plain CT, 2 cases both pre- and post-contrast enhanced CT, and 12 cases contrast enhanced CT. There were 18 axial and 16 coronal scans. Results: Tumors originated from and localized in the nasal cavity in 2 cases. In 15 cases, tumors were located in maxillary sinus and invaded adjacent organs or/and structures, including ipsilateral ethmoid sinus, sphenoid sinus and nasal cavity, contralateral maxillary sinus, orbit, palate, infratemporal fossa, pterygopalatine fossa, parapharyngeal space, inferior orbital fissure and foramen oval. In 7 cases, lesions invaded intracranial structures as well as the cavernous sinus. Altogether there were 2 cases of stage I, 3 cases stage III, and 12 cases stage IV. Adjacent bony changes were found in 16 cases, with bony remodeling (4 cases) and bony erosion combined with expansion (12) (71%). The diameter of the mass was larger than 5 cm in 71% of the cases. In 41% of the cases, tumors were irregular in shape, mottled pattern of lucencies within the tumor was shown in 82% of cases. Scattered calcification could be identified in 3 cases. Conclusion: Most of ACC of the nasal cavity and paranasal sinus had mottle pattern of lucencies within the tumor, irregular in shape, adjacent bony remodeling and/or erosive destruction. These findings indicate the histologic and biologic characteristics of the tumor with slow growing and perineural invasion. Apart from axial scan, coronal scan and contrast administration are mandated for the diagnosis and staging ACC

  17. Radiologic evaluation of the maxillary natural pathologic conditions in children

    International Nuclear Information System (INIS)

    The authors evaluated the distribution of the antral pathologic conditions and their radiographic features on the Waters' radiographs of 151 children patients who had been radiographed at the department of Oral Radiology, Seoul National University Hospitals. The obtained results were as follows : 1. The most common pathologic condition was inflammatory change (58%). Percentage of cases showing cystic lesion and fibro-osseous lesion were 25% and 11% respectively. 2. In cases of inflammatory change, odontogenic origins were 12 cases (13%) and bilateral occurrences were 37 cases (39%). 3. The most common radiographic feature of the inflammatory conditions was various types of mucosal thickening (78%). Percentage of cases showing totally increased radiopacity was 18%. 4. Intrinsic cystic lesions were 26 cases (65%) and dentigerous cyst was the most common extrinsic cyst. 5. Most of the fibro-osseous lesions (15 from 17 cases) were fobrous dysplasea. 6. Maxillary sinus hypoplasia (5 cases) and Burkitt's lymphoma (4 cases) were also observed.

  18. Computed Tomography (CT) -- Sinuses

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  19. Computed Tomography (CT) -- Sinuses

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    Full Text Available ... help diagnose sinusitis . top of page How should I prepare? You should wear comfortable, loose-fitting clothing ... within 10 minutes. top of page What will I experience during and after the procedure? CT exams ...

  20. Computed Tomography (CT) -- Sinuses

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  1. Three cases of osteoma and an osseous fibroma of the paranasal sinuses of horses in South Africa

    Scientific Electronic Library Online (English)

    I, Cilliers; J, Williams; A, Carstens; N M, Duncan.

    Full Text Available Four horses were presented to the Onderstepoort Veterinary Academic Hospital with histories of facial asymmetry, nasal discharge or obstruction of normal nasal passage airflow. Radiographic examination of the maxillary sinuses of 2 cases revealed well circumscribed, unilateral, mineralised masses; t [...] he other 2 cases showed less mineralisation. The masses were accessed for further investigation by surgically created frontonasal bone flaps or trephination of the maxillary sinuses. Diagnosis of osteoma was confirmed histopathologically in 3 of the cases and of ossifying fibroma in the 4th. Two horses were euthanased directly after surgical intervention due to poor prognosis. Osteomas are by nature expansile tumours andfollow the complex communication of the sinuses, and therefore are not all amenable to surgical removal. Osseous fibromas are large, solitary, expansile lesions that are rare in all species but reported most frequently in horses. They have an apparent predilection for the rostral mandible of the horse.

  2. Unusual ocular manifestations of silent sinus syndrome / Manifestações oculares incomuns na síndrome do seio silencioso

    Scientific Electronic Library Online (English)

    Fabricio Lopes da, Fonseca; Luciana, Mazoti; Mariza, Polati.

    2014-01-01

    Full Text Available A síndrome do seio silencioso é uma afecção adquirida em que há colapso gradual do assoalho orbital e do seio maxilar (atelectasia do seio maxilar), o que pode acarretar alterações orbitárias e oculares associadas, como enoftalmia e hipotropia. Relatamos o caso de um paciente de 8 anos de idade com [...] síndrome do seio silencioso e distúrbios da motilidade ocular. A associação entre a síndrome do seio silencioso e alterações da motilidade ocular extrínseca tem sido descrita na literatura. No entanto, esta é uma associação pouco frequente, principalmente na infância. Abstract in english Silent sinus syndrome is an acquired condition in which there is a gradual collapse of the orbital floor and inward retraction of the maxillary sinus (atelectasis of the maxillary sinus). This in turn may cause associated ocular occurrences of enophthalmos and hypotropia. This is a report of an 8 ye [...] ar-old boy with silent sinus syndrome and associated ocular motility disorders. The association between silent sinus syndrome and ocular motility disturbance has been recently described in the literature. However, this is an infrequent association, mainly in childhood.

  3. A clinical study of malignancies of the nasal cavity and paranasal sinuses

    International Nuclear Information System (INIS)

    The data of a total of 82 patients with malignancies of the nasal cavity and paranasal sinuses who were initially treated at the University of Tsukuba Hospital between 2002 and 2011 were reviewed. The mean age (±standard deviation) was 63.1 (±14.6) years, and the male-female ratio was 2.73 : 1. The tumor originated from the maxiallry sinus in 40 cases (48.8%), from the nasal cavity in 28 cases (34.1%), from the ethmoid sinus in 9 cases (11.0%), and from other sinuses in 5 cases (6.1%). At our department, treatment for maxillary cancer is initiated with chemoradiotherapy concurrently with intraarterial infusion of fluorouracil, followed by planned surgery for appropriate candidates. The disease-specific 5-year survival rate was 57.0% in our series of patients with maxillary cancer. Malignancies of the nasal cavity and paranasal sinuses may present with diverse clinical features and further investigation is needed to establish appropriate treatment strategies for individual cases. (author)

  4. CT and MRI diagnosis of osteosarcoma in paranasal sinus

    International Nuclear Information System (INIS)

    Objective: To study the CT and MRI findings of osteosarcoma in paranasal sinus and evaluate their clinical value. Methods: All 9 eases of osteosarcoma were verified by histopathology. Imaging data were analyzed retrospectively. Results: The lesion occurred in maxillary sinus in 5 eases, in ethmoid sinus in 3 cases and in sphenoid sinus in one ease. Primary osteosarcoma was found in 7 cases. Secondary osteosarcoma occurred from fibrous dysplasia and ossifying fibroma each in one case. On CT, the involved areas revealed bony destruction associated with ill-defined and irregular soft tissue mass. The lesion showed heterogeneous density with minimal or massive tumor' bone formation, cloud-like in 3 cases, ivory-like in 2 cases, spicule-like in 2 cases, cloud- and spicule -like in one case and spicule- and ivory-like in one case. Postcontrast CT showed mild to moderate inhomogeneous enhancement in 3 cases. On MR T1WI, the lesions showed hypointensity compared to brain in 5 cases and iso-intensity in 2 cases. On T2WI, the lesions showed heterogeneous hyperintensity in 4 cases and isointensity in 3 cases with marked hypointense foci which corresponded to tumor bone on CT. Postcontrast MR imaging demonstrated moderate to marked inhomogeneous enhancement in these cases. MRI showed accurately the extent and associated changes of the lesions. The lesions invaded the orbit, pterygopalatine and infratemporal fossae, skull base and extensive craniofacial structures in 5,4,3 cases and 1 case,respectively. Conclusion: CT is the optimal modality in showing tumor bone of osteosarcoma in paranasal sinus. MRI can demonstrate optimally the invading extent of the lesions. Combined imaging modalities can provide more comprehensive information for diagnosis and therapy of osteosarcoma in paranasal sinus. (authors)

  5. Incidental paranasal sinuses abnormalities in pediatric patients using computed tomography of the head and orbits

    International Nuclear Information System (INIS)

    Objective: To evaluate the prevalence and appearance of incidental paranasal sinuses abnormalities in children with no clinical evidence of rhino sinusitis using CT scans. Materials and methods: CT scans of the head or orbits of children between 0 and 18 years of age performed due to problems not related to rhino sinusitis were studied. Results: Sixty-four children were included (mean age 5.7 years; standard deviation = 3.9). Incidental sinuses abnormalities were found in 46 cases (72%). In most cases the abnormalities were mild (25/46) and mucosal thickening was the most common finding. Complete opacification and fluid levels occurred in 12 children. More than one cavity was affected in 33 patients and abnormalities were most frequently seen in maxillary sinuses, followed by ethmoid sinuses. Bilateral and symmetric findings were common. The prevalence and intensity of abnormalities were higher in children below three years of age. Conclusion: Incidental abnormalities are highly prevalent and tend to be mild in children without symptoms of rhino sinusitis. The most prevalent abnormality was mucosal thickening. Moderate and severe abnormalities occur in children below three years of age. (author)

  6. Reimplantation of cultivated human bone cells from the posterior maxilla for sinus floor augmentation

    DEFF Research Database (Denmark)

    Hermund, Niels Ulrich; Stavropoulos, Andreas; Donatsky, Ole; Nielsen, Henrik; Clausen, Christian; Reibel, Jesper; Pakkenberg, Bente; Holmstrup, Palle

    2012-01-01

    OBJECTIVES: The aim of the present randomized clinical study was to evaluate histologically whether the addition of cultivated, autogenous bone cells to a composite graft of deproteinized bovine bone mineral (DBBM) and autogenous bone (AB) for sinus floor augmentation (SFA) enhance bone formation compared with what achieved after SFA with DBBM + AB alone. MATERIAL AND METHODS: Twenty patients with remaining posterior maxillary alveolar crest height of less than 3 mm received SFA after randomizat...

  7. Volumetric upper airway assessment in patients with transverse maxillary deficiency after surgically assisted rapid maxillary expansion

    DEFF Research Database (Denmark)

    Pereira-Filho, V A; Monnazzi, M S; Gabrielli, M A C; Spin-Neto, Rubens; Watanabe, E R; Gimenez, C M M; Santos-Pinto, A; Gabrielli, M F R

    2013-01-01

    Transverse maxillary deficiency is commonly found in patients with sleep apnea and is also related to abnormal breathing patterns. Maxillary expansion procedures promote widening of the nasal floor and reduce the resistance to airflow, and have a positive influence on nasopharynx function. In order to evaluate volume changes in the upper airway, 15 adult patients with transverse maxillary deficiency underwent surgically assisted rapid maxillary expansion (RME) until a slight overcorrection of th...

  8. Multiple myeloma presenting with a maxillary lesion as the first sign.

    Science.gov (United States)

    Ramaiah, Kiran Kumar Kotagudda; Joshi, Vajendra; Thayi, Shilpa Ravishankar; Sathyanarayana, Pathalapate; Patil, Prashant; Ahmed, Zaheer

    2015-03-01

    Multiple myeloma is a clonal neoplastic proliferation of terminally differentiated B-lymphocytes involving the skeletal system in a multifocal fashion. Its oral manifestations are less common in the maxilla than in the mandible due to the lower amount of hemopoietic bone marrow in the maxilla. We report the case of a 50-year-old man who presented with a mass in the left maxillary alveolar region with tooth mobility. The mass had become enlarged after the teeth were extracted 15 days previously. Radiographs demonstrated multiple punched-out radiolucent lesions in the skull and pelvic region. Computed tomography images showed a soft tissue density mass in the left maxilla, eroding the floor and walls of the maxillary sinus. Although several analytical techniques were used to characterize the lesion, it was finally confirmed as multiple myeloma through immunohistochemistry. PMID:25793184

  9. Multiple myeloma presenting with a maxillary lesion as the first sign

    Energy Technology Data Exchange (ETDEWEB)

    Ramaiah, Kiran Kumar Kotagudda; Joshi, Vajendra; Thayi, Shilpa Ravishankar; Sathyanarayana, Pathalapate; Patil, Prashant [Dept. of Oral Medicine and Radiology, Navodaya Dental College and Hospital, Raichur (Korea, Republic of); Ahmed, Zaheer [Dept. of Public Health Dentistry, Navodaya Dental College and Hospital, Raichur (Korea, Republic of)

    2015-03-15

    Multiple myeloma is a clonal neoplastic proliferation of terminally differentiated B-lymphocytes involving the skeletal system in a multifocal fashion. Its oral manifestations are less common in the maxilla than in the mandible due to the lower amount of hemopoietic bone marrow in the maxilla. We report the case of a 50-year-old man who presented with a mass in the left maxillary alveolar region with tooth mobility. The mass had become enlarged after the teeth were extracted 15 days previously. Radiographs demonstrated multiple punched-out radiolucent lesions in the skull and pelvic region. Computed tomography images showed a soft tissue density mass in the left maxilla, eroding the floor and walls of the maxillary sinus. Although several analytical techniques were used to characterize the lesion, it was finally confirmed as multiple myeloma through immunohistochemistry.

  10. Multiple myeloma presenting with a maxillary lesion as the first sign

    Science.gov (United States)

    Joshi, Vajendra; Thayi, Shilpa Ravishankar; Sathyanarayana, Pathalapate; Patil, Prashant; Ahmed, Zaheer

    2015-01-01

    Multiple myeloma is a clonal neoplastic proliferation of terminally differentiated B-lymphocytes involving the skeletal system in a multifocal fashion. Its oral manifestations are less common in the maxilla than in the mandible due to the lower amount of hemopoietic bone marrow in the maxilla. We report the case of a 50-year-old man who presented with a mass in the left maxillary alveolar region with tooth mobility. The mass had become enlarged after the teeth were extracted 15 days previously. Radiographs demonstrated multiple punched-out radiolucent lesions in the skull and pelvic region. Computed tomography images showed a soft tissue density mass in the left maxilla, eroding the floor and walls of the maxillary sinus. Although several analytical techniques were used to characterize the lesion, it was finally confirmed as multiple myeloma through immunohistochemistry. PMID:25793184

  11. Multiple myeloma presenting with a maxillary lesion as the first sign

    International Nuclear Information System (INIS)

    Multiple myeloma is a clonal neoplastic proliferation of terminally differentiated B-lymphocytes involving the skeletal system in a multifocal fashion. Its oral manifestations are less common in the maxilla than in the mandible due to the lower amount of hemopoietic bone marrow in the maxilla. We report the case of a 50-year-old man who presented with a mass in the left maxillary alveolar region with tooth mobility. The mass had become enlarged after the teeth were extracted 15 days previously. Radiographs demonstrated multiple punched-out radiolucent lesions in the skull and pelvic region. Computed tomography images showed a soft tissue density mass in the left maxilla, eroding the floor and walls of the maxillary sinus. Although several analytical techniques were used to characterize the lesion, it was finally confirmed as multiple myeloma through immunohistochemistry.

  12. Mesial bodily movement of maxillary and mandibular molars with segmented mechanics.

    Science.gov (United States)

    Cacciafesta, V; Melsen, B

    2001-08-01

    The displacement of teeth into areas with substantial atrophy of the alveolar ridge or through the maxillary sinus has been considered a major limitation. Bone formation can, however, be generated if the orthodontic appliance can produce the necessary strain distribution along the entire periodontal ligament. The aim of this case report is to illustrate how bone formation can accompany mesial bodily movement of maxillary and mandibular molars. The necessary strain distribution was generated by the rational use of segmented mechanics. The use of superelastic Ni-Ti springs allows the application of low and constant forces over a wide range of deactivation, thus providing a uniform strain in the periodontium. The result of those appliances is highly predictable and side effects can be minimized effectively. PMID:11553103

  13. Pilonidal sinus of the penis

    OpenAIRE

    Hugh F. O'Kane; Duggan, B.; Mulholland, C; Crosbie, J

    2008-01-01

    Pilonidal sinus is a well recognised chronic inflammatory condition which commonly affects the natal cleft and finger web space. Pilonidal sinus of the penis is a rare clinical entity; few cases have been reported previously. The treatment strategy is almost the same as treating any pilonidal sinus and involves total excision of the sinus. Our diagnosis was established on the histopathological findings rather than a clinical-based diagnosis, Follow-up is advisable since the recurrence rate is...

  14. Fungus ball of the paranasal sinuses: Report of two cases and literature review

    Directory of Open Access Journals (Sweden)

    Bosi, Guilherme Rasia

    2012-01-01

    Full Text Available Introduction: Fungal ball of the sinuses is a not invasive infection that if characterizes for its chronicity, being the majority related with previous endodontic treatment. Affect mainly the breasts to maxillary; even so all the breasts can be involved. The main etiological agent is the Aspergillus spp. The computed tomography, had to characteristic the radiological presentations, suggests the diagnosis that is carried through definitively through histopathological analyses. The treatment standard-gold is the sinus surgery with average meatal antrostomy. Objective: Reporting two cases of fungal ball of the sinuses and to stand out important aspects of this pathology. Story of the Cases: Case 1 Patient of the feminine sex, 78 years old, presented itself with complaints of face pain has 6 months and previous history of endodontic treatment. To the physical examination it was evidenced purulent secretion presence in left average meatus. Ray X presented complete veiling of the breasts to maxillary left, while the computed tomography showed injury calcified in this place. Sinusotomy was become fulfilled that evolved well. Case 2 Patient of the feminine sex, 70 years old, looked attendance for history of sinusitis of repetition. To the physical examination no particularity was not perceived. The computed tomography, as well as the magnetic resonance, detected thickening of the mucous wall of the breasts to maxillary left, beyond a calcified mass. It was become fulfilled same sequence of treatment and the patient also evolved well. Final Considerations: The fungal infection must be considered in the patients who if present with chronic sinusitis, that they do not answer to the antibiotic use and that they possess history of endodontic manipulation.

  15. A study on the DNA content of maxillary cancer cell nuclei

    International Nuclear Information System (INIS)

    To make a comparison of the variation in the DNA content in the course of treatment by irradiation with combined use of radiosensitizer agents under different programs, to assess the value of DNA determination as applied to the diagnosis of maxillary cancer and the evaluation of its therapeutic response. The mean DNA content (M) of the cancer cell nuclei prior to anti-cancer treatment of maxillary cancer ranged from 15.0-24.1, values for triploidy to under-pentaploidy, with a standard deviation (S) as great as 3.4-9.5. Thus, the cancer cells had apparently higher values for both M and S than noncancerous maxillary sinus or mucous epithelial cells. The histogram of the DNA content of cancer cell nuclei characteristically indicated the presence of nuclei with a value for tetraploidy or higher. Nuclei having such a value accounted for 10 per cent or more of the total in almost all cases. The moderately differentiated form of squamous cell carcinoma of the maxillary sinus was associated with the highest DNA content of cell nuclei as viewed in terms of M and S values. The highly differentiated type showed relatively low values for M and S. The values were low but high in other cases of cancer of poorly differentiated or undifferentiated forms. The increased DNA content of cancer cell nuclei was found at 12-24 hours after administration of radiosensitizer agents (mainly 5-fluorouracil). Here the increment in the DNA content was greated with increasing dosage of 5-Fu. With irradiation implemented in combination with administration of radiosensitizers, an apparent therapeutic response was elicited as the DNA content of cancer cell nuclei diminished drastically and the tumor was reduced even macroscopically in size. (J.P.N.)

  16. Dural sinus patency

    International Nuclear Information System (INIS)

    This paper reports on the use of spin-echo MR imaging in the diagnosis of dural sinus thrombosis. The authors evaluated nine patients for dural sinus clot with additional MR flow-sensitive pulse sequence techniques. T1- and T2-weighted spin-echo pulse sequences were performed at 1.5 T. MR flow-sensitive pulse sequences included two-dimensional phase contrast MR angiography (TR 50, Te 14, 45 degrees flip angle), two-dimension projection reconstruction, and a phase-sensitive sequence called velocity imaging and gradient recalled echo (VIGRE) (TR24, Te 13 45 degrees)

  17. Coronary Sinus Lead Positioning.

    Science.gov (United States)

    Roka, Attila; Borgquist, Rasmus; Singh, Jagmeet

    2015-12-01

    Although cardiac resynchronization therapy improves morbidity and mortality in patients with cardiomyopathy, heart failure, and electrical dyssynchrony, the rate of nonresponders using standard indications and implant techniques is still high. Optimal coronary sinus lead positioning is important to increase the chance of successful resynchronization. Patient factors such as cause of heart failure, type of dyssynchrony, scar burden, coronary sinus anatomy, and phrenic nerve capture may affect the efficacy of the therapy. Several modalities are under investigation. Alternative left ventricular lead implantation strategies are occasionally required when the transvenous route is not feasible or would result in a suboptimal lead position. PMID:26596808

  18. Computed Tomography (CT) -- Sinuses

    Medline Plus

    Full Text Available ... of data to create two-dimensional cross-sectional images of your body, which are then displayed on a monitor. CT ... bear denotes child-specific content. Related Articles and Media Head and Neck Cancer Treatment Images related to Computed Tomography (CT) - Sinuses About this ...

  19. Computed Tomography (CT) -- Sinuses

    Medline Plus

    Full Text Available ... images or pictures of the inside of the body. The cross-sectional images generated during a CT scan can be reformatted ... bear denotes child-specific content. Related Articles and Media Head and Neck Cancer Treatment Images related to Computed Tomography (CT) - Sinuses About this ...

  20. The frontal sinus unobliteration procedure.

    Science.gov (United States)

    Javer, A R; Sillers, M J; Kuhn, F A

    2001-02-01

    Although intranasal frontal sinusotomy can now be performed for most cases of chronic frontal sinusitis, the osteoplastic frontal sinus procedure with obliteration, unfortunately, still is considered by many to be the standard for chronic frontal sinusitis against that which other frontal sinus procedures are judged. Unobliterating the previously obliterated sinus is indicated for patients with evidence of frontal sinus pathology on CT or MR images and for patients with chronic symptoms with equivocal radiologic results. The reopened frontal sinus can be reventilated and remucosalized, or reobliterated with the placement of a new fat graft. Complete or partial auto-obliteration by new bone formation or fibrosis is another possible endpoint that can result when unobliteration is attempted. PMID:11344073

  1. Unusual external resorption of a maxillary lateral.

    Science.gov (United States)

    Giunta, J L; Kaplan, M A

    1994-01-01

    This article defines an unusual previously unreported entity afflicting a maxillary lateral incisor. Labial idiopathic external root resorption just apical to the cemento-enamel presented as a gingival (periodontal) problem and was misinterpreted as cervical dental caries. This report defines a new possibility for a radicular defect in a maxillary lateral incisor that may cause periodontal problems. PMID:8054293

  2. Fulminant superior ophthalimic vein and cavermous sinus thrombophlebitis with intracranial extensions: A case report

    Energy Technology Data Exchange (ETDEWEB)

    Hwang, Ji Sun; Hong, Hyun Sook; Park, Ji Sang; Lee, A Leum; Choo, Eun Ju; Chang, Kee Hyun [Soonchunhyang University Bucheon Hospital, Soonchunhyang University College of Medicine, Bucheon (Korea, Republic of)

    2015-06-15

    Cavernous sinus thrombophlebitis (CST) is a rare and life-threatening disease without prompt diagnosis and treatment. Two cases of fulminant superior ophthalmic vein (SOV) and CST caused by maxillary periodontitis and sphenoid sinusitis are described. A 65-year-old woman presented with right proptosis, headache, and fever. A 74-year-old woman presented with left periorbital swelling. In both patients, MRI with gadolinium showed expansion of the bilateral cavernous sinus and diffuse dilatation of the SOV with non-enhancement of central thrombus, which indicated CST. The condition was complicated by brain abscess, meningitis, and ischemic stroke. These conditions were improved by antibiotic treatment, but one patient underwent exenteration of the orbit due to orbital rupture during hospitalization.

  3. Non-grafted sinus implants in periodontally compromised patients: a time-to-event analysis

    DEFF Research Database (Denmark)

    Ellegaard, Birgit; Baelum, Vibeke

    2006-01-01

    This study reports the results of implant therapy involving a sinus membrane lift and of conventional implant therapy in 68 periodontally compromised patients treated between June 1990 and June 2002. Patients had at least two implants inserted, one of which was placed in the maxillary sinus region following fenestration of the lateral sinus wall and lifting of the sinus membrane. Two implant systems were used: a two-stage system (Astra) and a one-stage system (ITI). Annual follow-up visits included recording of plaque, probing pocket depth and measurement of the radiographic distance in millimeter from the implant shoulder to the alveolar crest. Survival analysis showed that the proportion of implants that had not been explanted after 5 years ranged between 88.7% for ITI sinus implants and 97% for ASTRA conventional implants. After 10 years, the proportion of implants remaining in situ ranged between 59% for ITI conventional implants and 97% for ASTRA conventional implants. Cox regression analyses showed thatthe factors influential for implant explantation were implant type (HR(ITI) = 2.8), implant length (HR( or = 20 teeth) = 3.8). Our results demonstrate that sinus implants may be inserted with the same success as conventional implants in periodontally compromised patients.

  4. Computerized Tomographic Study on the Anatomic Variation of the Paranasal Sinus

    International Nuclear Information System (INIS)

    To evaluate the anatomic variations of the paranasal sinuses on computed tomographs. The author examined the CT images of the paranasal sinuses retrospectively in 500 patients who visited Chonbuk National University Hospital between January 1996 and December 1997. The highest incidence of anatomic variation of the paranasal sinuses in bilateral structures was agger nasi cell (73.2%), followed by concha bullosa (31.1%), Onodi cell (24.0%), Haller cell (19.8%), maxillary sinus septum (13.0%), paradoxical middle turbinate (2.5%), pneumatized uncinate process (2.0%), and bent uncinate process. The highest incidence of anatomic variation in midline structures was nasal septum deviation(53.2%), followed by nasal septumaerated (29.4%), bulla galli (24.7%) asymmetric intersphenoid septum (22.3%), and nasal septum spur (13.8%). The correlation between anatomic variation and paranasal sinusitis was not found. The results of this study will aid in the diagnosis and treatment of paranasal sinus diseases, especially in the treatment planning before functional endoscopic surgery.

  5. Concentrations of H1-Receptor Antagonist in the Human Nasal Mucosa

    OpenAIRE

    Haruo Takahashi; Hidetaka Kumagami; Kaori Enatsu; Kenji Takasaki

    2009-01-01

    Aims. To measure blood and tissue concentrations of the H1-receptor antagonist, bepotastine besilate (BB). Methods. Participants included 14 men and six women, whose age ranged from 13 to 76 years, with chronic rhinosinusitis, who underwent endoscopic sinus surgery at our university hospital. Among them, 10 participants had allergic rhinitis (AR) (Group I), and others did not have AR (Group II). Nasal mucosa and blood were collected 55 to 130 minutes after oral administration of BB 10?...

  6. Endoscópio rígido e flexível na sinoscopia e técnica de triangulação em seios paranasais de equinos / Rigid and flexible endoscope in sinoscopy and triangulation technique in equine paranasal sinus

    Scientific Electronic Library Online (English)

    Thaís Sodré de Lima, Machado; Luís Cláudio Lopes Correia da, Silva.

    2013-12-01

    Full Text Available A endoscopia dos seios paranasais, denominada sinoscopia, trata-se de técnica minimamente invasiva efetiva para diagnóstico e tratamento das afecções sinusais. Este trabalho teve como objetivo determinar portais para triangulação, a partir dos pontos de sinoscopia já descritos e comparar a utilizaçã [...] o de endoscópio rígido e flexível de pequeno calibre durante a sinoscopia em equinos de diferentes idades. Foram realizados, sequencialmente três procedimentos: sinoscopia com endoscópio rígido, sinoscopia com endoscópio flexível e abordagem cirúrgica por técnica de triangulação. A qualidade da imagem obtida com o endoscópio rígido foi superior à do endoscópio flexível, entretanto, a amplitude de visão foi maior com o endoscópio flexível, que permitiu maior mobilidade e aproximação das estruturas anatômicas dos seios paranasais. A partir dos portais situados sobre o seio frontal, foi possível examinar tanto o seio frontal como o maxilar caudal. Através do portal do seio maxilar caudal, foram examinadas as raízes dentárias e demais estruturas localizadas no interior deste. O exame do seio maxilar rostral foi dificultado em alguns casos devido ao acentuado tamanho da raiz do 1°dente molar, principalmente em animais jovens. Os portais para técnica de triangulação foram determinados nos seios frontal e maxilar caudal, permitindo acesso de instrumental cirúrgico às estruturas anatômicas. Através dos resultados obtidos foi possível estabelecer portais para realização de técnicas de sinoscopia e triangulação no diagnóstico e tratamento das afecções sinusais de equinos, utilizando endoscópio rígido ou flexível. Abstract in english Sinoscopy, the paranasal sinus endoscopy, is a minimally invasive technique used to diagnose and treat sinus disease. The objective of this study was to determine triangulation portals sites from sinoscopy portals previously described and to compare rigid and flexible endoscope of small diameter in [...] horses of different ages. Paranasal sinuses underwent three procedures in sequence: sinoscopy with rigid endoscope, sinoscopy with flexible endoscope and surgical approach to triangulation technique. Rigid endoscope presented higher image quality, although the amplitude of visualization was greater with flexible endoscope that yielded better mobility and proximity of the paranasal sinus anatomical structures. Through frontal sinus portals, the frontal and caudal maxillary sinuses were examined. The structures of maxillary caudal sinus, including the roots of the cheek teeth, were observed through the portal of caudal maxillary sinus. In some animals, the bigger root of the first upper molar teeth, mainly in young horses, made the exam of rostral sinus exam harder. Triangulation portals were determined in frontal and caudal maxillary sinus enabling surgical instrumentation access to anatomical structures. The results enabled the establishment of sinoscopy and triangulation portals to diagnosis and treatment of sinus disease in horses using either flexible or rigid endoscope.

  7. Computed tomography of the paranasal sinus for endonasal sinus surgery

    International Nuclear Information System (INIS)

    In a retrospective study 170 computed tomographies recorded in patients with chronic sinus disease were evaluated. The extent of sinus disease and the involvement of the different paranasalsinuses were well seen. Up to now 50 patients have undergone surgical treatment. The coincidence of the preoperative CT with the intraoperative findings was about 90%. Anatomic particularities of the paranasal sinus in an individual patient may predispose to recurrent sinusitis or mean there is an increased risk of intraoperative complications. The main risk factors are a far lateral location of the posterior ethmoid cells (28.8%), a much lower position of the cibriform plate in comparison to the ethmoid roof (11.8%), and extensive lateral aeration of the sphenoidal sinus (1.2%). All patients should undergo CT scanning in coronal and axial planes prior to endonasal sinus surgery. This gives a guide for detection of inflammatory lesions and anatomic variations or anomalies, thus making it possible to prevent intraoperative complications. (orig.)

  8. [Giant mucocele of the paranasal sinuses with extension to the contralateral posterior cranial fossa and reversible retrocochlear deafness].

    Science.gov (United States)

    Rudert, H; Harder, T; Werner, J A; Lippert, B M

    1993-05-01

    Report on a huge mucocele of the right maxillary sinus extending into the ethmoid and sphenoid sinuses, and protruding into the contralateral left posterior cranial fossa. The patient, a 45-year old male, had no history of paranasal sinus energy, nasal or paranasal symptoms. He went to his physician because of a slowly developing deafness in his left ear and because of episodes of loss of consciousness when blowing his nose. A reversible episode of vertigo and reversible paresis of the left abducent nerve 17 years previously, were later assumed to have been the first symptoms of endocranial extension of the mucocele. The diagnosis of a mucocele was made by MRI. MRI in T2 weighted spin-echo sequences is the best imaging technique for diagnosing a mucocele. The mucocele was treated primarily with endonasal surgery of the paranasal sinuses, using telescopes and an operating microscope. After opening the right maxillary sinus via the middle meatus liquid contents of the mucocele poured into the nasal cavity. The sack of the mucocele was removed partially. Three months later the patient was reoperated with a combined transfacial and endonasal approach, because of progression from partial hearing loss to total deafness. Postoperatively hearing improved nearly completely and compression of the pons and the posterior fossa had disappeared on MRI. It is concluded that in mucoceles no longer the extirpation of the sack, but endonasal marsupialization, using the operating microscope and telescopes, is the therapy of choice. PMID:8323630

  9. Computed tomography evaluation of autogenous graft in sinus lift surgery; Analise por tomografia computadorizada do enxerto autogeno na cirurgia de 'sinus lift'

    Energy Technology Data Exchange (ETDEWEB)

    Ajzen, Sergio Aron; Moscatiello, Rafael Andrade; Lima, Aida Maria Custodio de; Moscatiello, Vitoria Aparecida Muglia; Helio Kiitiro Yamashita [Universidade Federal de Sao Paulo (UNIFESP/EPM), SP (Brazil). Dept. de Diagnostico por Imagem; Mosacatiello, Rafael Muglia; Nishiguchi, Celso Itiro [Universidade Federal de Sao Paulo (UNIFESP/EPM), SP (Brazil). Disciplina de Tecnica Operatoria e Cirurgia Experimental; Alves, Maria Teresa de Seixas [Universidade Federal de Sao Paulo (UNIFESP/EPM), SP (Brazil). Disciplina de Anatomia Patologica

    2001-02-01

    The objective was to quantify bone formation within autogenous bone grafts and autogenous bone grafts in combination with platelet-rich plasma obtained either from apheresis or centrifugation using computed tomography. This prospective, double-blind study was conducted in 34 male and female adult patients (mean age of 28 years and 8 months), with either unilateral or bilateral pneumatization of the maxillary sinuses, requiring bone graft for dental implant. All patients were submitted to computed tomography examinations prior and six months after sinus lift surgery. Fifty-three maxillary sinuses were operated and divided into three distinct groups: autogenous bone graft, autogenous bone graft in combination with platelet-rich plasma obtained by centrifugation, and autogenous bone graft in combination with platelet-rich plasma obtained by apheresis. The results showed that computed tomography demonstrated bone growth in height and width between the initial and the follow-up computed tomography scans in all three groups. However, no statistical difference was found either for bone height or width. It was concluded that clinical evidence demonstrates the effectiveness of autogenous bone grafts, particularly when used in combination with bone growth factors such as platelet-rich plasma, which allow prosthetic and functional restoration of maxillofacial structures through fixation of dental implants. (author)

  10. Venous sinus stenting for pseudotumour cerebri with venous sinus stenosis

    International Nuclear Information System (INIS)

    Objective: To explore the relation between venous sinus stenosis and pseduotumour cerebri and to discuss the efficacy and strategy of venous sinus stenting for its treatment. Methods: Venous sinus stenting was performed in a total of 9 patients with pseudotumour cerebri accompanied by dural sinus stenosis. The clinical data, including the clinical presentations, intracranial pressure, angiographic findings, pressure of dural sinus,methods of treatment and the therapeutic results, were retrospectively analyzed. Results: Bilateral disc edema was seen in all patients. The pressure gradient in the lateral sinuses was obviously high before stenting (22.67±7.25)mmHg in all patients and a reduction in intra-sinus pressure and pressure gradient was also found (5.78±3.77)mmHg. The symptoms associated with intracranial hypertension were gradually improved or disappeared in two weeks after the placement of the stent in all cases, and the intracranial pressure dropped evidently (12.78±5.97)cm H2O. Vision was improved in 7 cases at three months, whereas it remained poor in 2 cases despite normalized intracranial pressure. There was no other permanent procedure-related morbidity. The patients were followed up for 3 months to 5 years, and no recurrence developed. Conclusion: Lateral sinus stenting is an effective method for the treatment of pseudotumour cerebri with dural sinus stenosis. (authors)

  11. Vasodepressor carotid sinus syncope.

    OpenAIRE

    Rentmeester, T; Van Zile, J; Van Hal, M; Levene, D

    1984-01-01

    There have been few reports of vasodepressor carotid sinus syncope, as opposed to the cardioinhibitory type, and no definitive treatment has been described. A 58 year old man developed episodes of syncope after surgery and radiotherapy for a laryngeal tumour. The episodes were characterised by hypotension, sharp pain in the right neck, dizziness, and bradycardia. A temporary pacemaker failed to prevent the symptoms, but ephedrine and fludrocortisone produced substantial improvement. Of the fo...

  12. Incidental findings in paranasal sinuses and mastoid cells. A cross-sectional magnetic resonance imaging (MRI) study in a pediatric radiology department

    International Nuclear Information System (INIS)

    Purpose: Misdiagnosis of 'sinusitis' is still frequent in children, although mucosal swelling in the paranasal sinuses of children has been reported as a common incidental finding. Recent radiological publications on the problem are rare. We prospectively evaluated the mucosal thickening in the paranasal sinuses and mastoid cells of children who underwent MRI of the head for reasons other than sinusitis or mastoiditis. Materials and Methods: 147 patients, 0.2 - 22.7 years, median 8.9. Axial and sagittal T2 TSE images were evaluated by two experienced pediatric radiologists. Categories for the degree of mucosal swelling were for the maxillary, frontal and sphenoid sinuses: no swelling, minor: 50 %. Results: 61 % of children had one or more salient findings in their paranasal sinuses or mastoid cells. 48 % had mucosal swelling in their paranasal cavities, 25 % in their mastoid cells. The prevalence was higher among children less than 10 years of age (60 % and 42 %) and among children with current upper respiratory tract infection (71 % and 35 %). There was no correlation to a history of headache, snoring, asthma and allergies, or to gender or place of residence. Conclusion: Mucosal swelling in paranasal sinuses and in mastoid cells is a frequent incidental finding in children. Even major mucosal swelling in a paranasal sinus is not necessarily a sign of infection. In radiological reports the terms 'sinusitis' and 'mastoiditis' should therefore be used with great caution. The initiation of treatment should be based on clinical symptoms and not on radiological abnormalities alone. (orig.)

  13. Sinonasal imaging after Caldwell-Luc surgery: MDCT findings of an abandoned procedure in times of functional endoscopic sinus surgery

    International Nuclear Information System (INIS)

    Background and purpose: Today, functional endoscopic sinus surgery (FESS) is performed in most of the patients with sinonasal inflammatory disease. The postoperative imaging findings of FESS in multidetector computed tomography (MDCT) considerably differ from those of historic Caldwell-Luc (CL) maxillary sinus surgery which is an uncommon procedure today. Thus, the postoperative CL imaging findings may lead to diagnostic confusion and misinterpretation. Therefore, this study explicitly presents the MDCT findings of post-CL patients which have not been described previously. Methods: Twenty-eight patients with clinically suspected sinusitis and documented history of CL-procedure underwent 16 row MDCT (MDCT Mx8000 IDT Philips) with multiplanar reconstructions of the paranasal sinuses in the axial plane. The following parameters were used: 140 kV, 50 mAs; 16 mm x 0.75 mm detector collimation; 1 mm reconstructed slice thickness; 0.5 mm increment. The studies were reconstructed with a bone algorithm (W3000/L600; 1 mm slice thickness) in axial plane and coronal plane (3 mm slice thickness). The images were retrospectively evaluated for the presence of normal surgery-related and pathological findings. Results: Surgery-related imaging characteristics presented as follows: an anterior and a medial bony wall defect and sclerosis and sinus wall thickening were observed in all 28/28 cases (100%). Collaps of the sinus cavity was seen in 26/28 cases (92.9%). Furthermore, inflammatory disease of the operated sinus(es) was found in 23/28 cases (82.1%): 14/28 patients (50%) had inflammatory mucosal thickening of the operated sinus(es) as well as of other sinonasal cavities and 9/28 patients (32.1%) had inflammatory mucosal thickening limited to the operated sinus(es). A postoperative mucocele was depicted in 3/28 cases (10.7%). 2/28 patients (7.1%) showed neither maxillary nor other mucosal swelling. Conclusion: MDCT with multiplanar reconstructions is a precise method to evaluate post-CL patients and helps to differentiate normal surgery-related findings, which may mimic pathology, from real pathological findings.

  14. Remarkable anatomic variations in paranasal sinus region and their clinical importance

    Energy Technology Data Exchange (ETDEWEB)

    Kantarci, Mecit E-mail: akkanrad@hotmail.com; Karasen, R. Murat; Alper, Fatih; Onbas, Omer; Okur, Adnan; Karaman, Adem

    2004-06-01

    With the advent of functional endoscopic sinus surgery (FESS) and coronal computed tomography (CT) imaging, considerable attention has been directed toward paranasal region anatomy. Detailed knowledge of anatomic variations in paranasal sinus region is critical for surgeons performing endoscopic sinus surgery as well as for the radiologist involved in the preoperative work-up. To be in the known anatomical variants with some accompanying pathologies, directly influence the success of diagnostic and therapeutic management of paranasal sinus diseases. A review of 512 (1024 sides) paranasal sinus tomographic scans was carried out to expose remarkable anatomic variations of this region. We used only coronal sections, but for some cases to clear exact diagnosis, additional axial CT scan, magnetic resonance imaging (MRI) and nasal endoscopy were also performed. In this pictorial essay, rates of remarkable anatomic variations in paranasal region were displayed. The images of some interesting cases were illustrated, such as the Onodi cell in which isolated mucocele caused loss of visual acuity, agger nasi cell, Haller's cell, uncinate bulla, giant superior concha bullosa, inferior concha bullosa, bilateral carotid artery protrusion into sphenoid sinus, maxillary sinus agenesis, bilateral secondary middle turbinate (SMT) and sphenomaxillary plate. The clinical importance of all these variations were discussed under the light of the literature. It was suggested that remarkable anatomic variations of paranasal region and their possible pathologic consequences should be well defined in order to improve success of management strategies, and to avoid potential complications of endoscopic sinus surgery. The radiologist must pay close attention to anatomical variations in the preoperative evaluation.

  15. Imaging study of ossifying fibroma with associated aneurysmal bone cyst in the paranasal sinus

    International Nuclear Information System (INIS)

    Objective: To determine the CT and MR imaging features of ossifying fibroma with aneurysmal bone cyst of the paranasal sinus. Materials and methods: We retrospectively reviewed 15 patients with histopathology-proven ossifying fibromas with aneurysmal bone cysts in the paranasal sinus. All 15 patients underwent CT and MR imaging. The following imaging features were reviewed: location, shape, margin, CT findings, and MR imaging appearances and time-intensity curve of dynamic contrast-enhanced MR imaging. Results: Ossifying fibromas occurred in the maxillary sinus in one patient, sphenoid sinus in 2, frontal sinus in 3, frontoethmoid sinuses in 3, and ethmoid sinus in 6 patients. Ossifying fibromas showed an elliptic-shape and aneurysmal bone cysts revealed a multicystic appearance, with well-demarcated margins. On unenhanced CT, ossifying fibromas appeared isodense to gray matter with scattered calcifications in nine, ground-glass appearance in 6 patients and aneurysmal bone cysts showed mixed density. Ossifying fibromas appeared isointense to gray matter in 12 and slightly hypointense in three patients on T1-weighted images, and isointense in 4 and hypointense in eleven patients on T2-weighted images, with moderate or marked enhancement after administration of contrast material. The time-intensity curves of eight ossifying fibromas exhibited a rapidly enhancing and rapid washout pattern. The intracystic components of aneurysmal bone cysts showed heterogeneous signal intensity on MR images, with fluid–fluid levels identified clearly by T2-weighted images, without enhancement. The periphery and septa of aneurysmal bone cysts appeared isointense on MR images, with marked enhancement. Conclusions: Fluid–fluid levels within an elliptic-shape mass with scattered calcifications or ground-glass appearance is highly suggestive of this complicated entity in the paranasal sinus.

  16. Complicações após expansão de maxila cirurgicamente assistida / Complications following surgically assisted maxillary expansion

    Scientific Electronic Library Online (English)

    Gustavo Cavalcanti, Albuquerque; Andréa Guedes Barreto, Gonçales; Victor, Tieghi Neto; Alexandre Simões, Nogueira; Diogo Souza Ferreira Rubim de, Assis; Eduardo Sanches, Gonçales.

    2013-02-01

    Full Text Available INTRODUÇÃO: O tratamento da deficiência transversal de maxila, em adultos, exige a expansão de maxila cirurgicamente assistida. Diversas técnicas cirúrgicas são conhecidas para a realização desse procedimento, porém estas relacionam-se com complicações. OBJETIVO: Avaliar a incidência de complicações [...] associadas ao procedimento de expansão de maxila cirurgicamente assistida. MATERIAL E MÉTODO: Trinta e três indivíduos com deficiência transversal de maxila foram submetidos ao procedimento de expansão pela técnica da osteotomia Le Fort I subtotal com degrau no pilar zigomático-maxilar, disjunção ptérigo-maxilar e osteotomia da sutura intermaxilar. Durante os períodos trans e pós-operatório, as complicações relacionadas ao procedimento e as distâncias interdentais foram registradas. RESULTADO: Doze homens e 21 mulheres, com idade média de 24,64 anos, submeteram-se ao procedimento. As mensurações das distâncias interdentais evidenciaram aumento das mesmas entre os períodos pré-operatório e pós-operatório de 2 meses. As complicações prevalentes foram sinusite (6%) e deslocamento associado à inclinação dental (6%). CONCLUSÃO: A expansão de maxila cirurgicamente assistida é um procedimento eficaz e de baixa morbidade para o tratamento da deficiência transversal de maxila em indivíduos adultos. Abstract in english INTRODUCTION: The treatment of adult transverse maxillary deficiency is the surgically assisted maxillary expansion. Several surgical techniques have been described for this and complications have been related to these procedures. OBJECTIVE: the aim of this study was evaluate the incidence of compli [...] cations associated with surgically assisted maxillary expansion. MATERIAL AND METHOD: 33 individuals undergone surgically assisted maxillary expansion by subtotal Le Fort I osteotomy with a step in the zygomatic-maxillary buttress and associated to pterigomaxillary disjunction and osteotomy of intermaxillary suture. Operative complications, post-operative complications and the distance between the upper teeth were recorded. RESULT: 12 men and 21 women with an average age of 24.64 years undergone the procedure. The interdental distances increased from preoperative to 2 months post-operative time. The prevalent complications were sinusitis (6%) and teeth displacement and inclination (6%). CONCLUSION: Surgically assisted maxillary expansion is an effective and low morbidity procedure to treat transverse maxillary deficiency in adults.

  17. Inflammatory myofibroblastic tumor of paranasal sinuses

    International Nuclear Information System (INIS)

    Inflammatory myofibroblastic tumors (IMTs) are clinicopathologically distinctive but biologically controversial entries; they rarely affect the head and neck region and usually follow a benign clinical course after radical excision. We reviewed the literatures of IMTs and present a rare case of IMT arising from the maxillary paranasal sinus of an 11-yaer-old girl. Moreover, we elaborate on the morpho-immunophenotypic characteristic of this lesion. Microscopic examination revealed a spindle cell proliferation set in a highly vascular stroma with numerous inflammatory cells. Tumor cells were immunoreactive for vimentin, and smooth muscle action, negative for desmin, S-100, p53, Cyclin D1 and bcl-2. The potential neoplastic nature of this lesion was substantiated by the strong diffuse immuno-expression of ALK-1 protein, a marker that has been linked to neoplastic transformation. The lesion was excised completely by a Co2 LASER as a new treatment modality and the patient manifested no evidence of disease recurrence at 10-months recall. (author)

  18. Disorders of Sinus Function.

    Science.gov (United States)

    Mandel; Jordan; Karagueuzian

    1999-08-01

    Sinus node dysfunction is a common entity with significant clinical implications. Establishing a diagnosis may, on occasion, tax the skills of the clinician. Many causes have been cited, but no single factor appears to be established. Immunologic abnormalities may play a part in the etiologic process. Clinical invasive electrophysiology studies may be used to establish a diagnosis. In general, medical therapy must be integrated. Controversy exists regarding the best method of permanent pacing. Treatment may need to be individualized to the type of arrhythmia noted. Long-term prognosis is a large factor in choice of therapy, related to the underlying disease. Prevention of atrial fibrillation may occur with dual-chamber pacing; however, anticoagulation appears essential in this patient subgroup. The 5-year mortality rate in these patients is high and does not appear to be significantly improved with artificial pacing. Mortality is prominently influenced by the coexistence of cardiovascular and valvular heart disease. Patients who die do not differ substantially from survivors with regard to type of sinus dysfunction, occurrence of tachyarrhythmia, or distal conduction abnormalities. The survival rate in patients with sick sinus syndrome and congestive heart failure is significantly lower, and the incidence of embolic events remains high in patients with permanent pacing and the sick sinus syndrome. Thus, it has been proposed that all patients exhibiting the bradycardia-tachycardia syndrome be fully anticoagulated. The incidence of atrial fibrillation is significantly lower in patients with atrial demand pacing (22.3% versus 3.9%) than in patients with ventricular pacing and is accompanied by a decreased incidence of systemic embolization (13% versus 1.6%). Reports comparing survival with use of dual-chamber pacing versus ventricular pacing are encouraging in patients with congestive heart failure. At present, the natural history of the disease is unknown; furthermore, clinical risk factors for the development of symptoms have not been defined, and no electrophysiologic measure of sinus node function has been demonstrated to have reliable predictive value. Therefore, common practice has been to withhold pacemaker therapy in the asymptomatic patient. PMID:11096482

  19. Frontal sinus adenocarcinoma

    Scientific Electronic Library Online (English)

    Márcio, Abrahão; Ana Paula Vieira, Gonçalves; Roberto, Yamashita; Rogério Aparecido, Dedivitis; Rodrigo Oliveira, Santos; Luiz Augusto, Nascimento; Marcelo Luis, Mudo; Fernando Antonio Patriani, Ferraz; Onivaldo, Cervantes.

    2000-07-06

    Full Text Available CONTEXTO: O câncer dos seios paranasais é considerado raro com uma incidência menor que 1 por 100.000 por ano. O seio frontal é o sítio primário em apenas 0,3% dos casos. A seguir relatamos um caso de adenocarcinoma do seio frontal. TIPO DE ESTUDO: Relato de caso. RELATO DO CASO: Paciente do sexo fe [...] minino, 59 anos, secretária, com queixa de quatro meses de cefaléia frontal de leve intensidade (fevereiro de 1998). Negava contato com serragem. Ao exame notava-se um abaulamento frontal à direita, adjacente a borda medial da órbita direita, de característica endurecida. A tomografia computadorizada mostrava um tumor com densidade de partes moles preenchendo o seio frontal com invasão intracraniana através da parede posterior. O seio etmoidal anterior e a borda medial da órbita direita também estava envolvida. A ressonância nuclear magnética demonstrava espessamento dural em comunicação com o tumor. A paciente foi submetida a exérese tumoral em bloco através de craniotomia bicoronal incluindo exenteração orbitária à direita. O exame histopatológico revelou adenocarcinoma. Após a cirurgia a paciente apresentou recidiva tumoral com resposta parcial a radioterapia e quimioterapia. Abstract in english CONTEXT: Paranasal sinus cancer is considered rare, with an incidence of less than 1 per 100,000 per year, with the frontal sinus being the primary site in only 0.3%. We report a case of adenocarcinoma arising in the frontal sinus. DESIGN: Case report. CASE REPORT: A 59-year-old woman, secretary, ca [...] me in February 1998 with a 4-month history of low intensity frontal headache. She denied contact with wood dust. On examination a non-tender swelling was noted over her right forehead next to the medial aspect of the right orbit. CT scan showed a soft-tissue mass involving frontal sinus with intracranial invasion through the posterior wall. The anterior ethmoid sinus and the medial aspect of the right orbit were also involved. MRI demonstrated dural thickening in communication with the frontal mass. She underwent an en-bloc tumor resection by craniotomy including orbital clearance. Histology revealed an adenocarcinoma. After surgery she had tumor recurrence, and chemotherapy and radiotherapy were started resulting in partial improvement.

  20. MICROBIOLOGICAL INVESTIGATIONS IN MAXILLARY OSTEITIS

    Directory of Open Access Journals (Sweden)

    I.Al. BONCHIS

    2013-07-01

    Full Text Available Osteitis is an inflammatory process localized accurately at maxillary bones. The microbiological exams of the biopsy punch fragments obtained by curettage of the post? extraction wound have evidenced the occurrence and the degree of severity of the inflammatory background of the lesion, giving the possibility to reconstruct the dynamics of the inflammatory process in osteitis. Evolution of the healing process could be followed on the biopsy punches taken over from patients who followed a correct treatment. The fragments taken over from patients were fixed for 24 hours in 10% neuter formol and processed according to the classic methodology, for their inclusion in paraffin blocks. The most important conclusions are that osteitis with nor? mal scarring evolution contains a very small number of bacilli and Gram positive cocci, while follow?up of micro? organisms and cell elements in osteitis may serve as scien? tific methods for controlling the evolution toward healing of the inflammatory lesion.

  1. Concentrations of h1-receptor antagonist in the human nasal mucosa.

    Science.gov (United States)

    Takasaki, Kenji; Enatsu, Kaori; Kumagami, Hidetaka; Takahashi, Haruo

    2009-01-01

    Aims. To measure blood and tissue concentrations of the H1-receptor antagonist, bepotastine besilate (BB). Methods. Participants included 14 men and six women, whose age ranged from 13 to 76 years, with chronic rhinosinusitis, who underwent endoscopic sinus surgery at our university hospital. Among them, 10 participants had allergic rhinitis (AR) (Group I), and others did not have AR (Group II). Nasal mucosa and blood were collected 55 to 130 minutes after oral administration of BB 10 mg. Concentrations of the agent in the serum and nasal mucosa were measured by high-performance liquid chromatography. Results. Concentrations of BB of the serum in Group I and II were 98 +/- 32 ng/mL and 112 +/- 39 ng/mL. Those of the nasal mucosa tissue in Groups I and II were 101 +/- 36 ng/g and 132 +/- 44 ng/g. There was no significant difference in the values of concentration of BB between the serum and the nasal mucosa in either Group I or II (P = .757 and P = .2662, resp., Paired t-test). Conclusion. This preliminary study is considered the first report on the concentration of H1-receptor antagonists in nasal mucosa. The prompt absorption and transition to the nasal mucosa of BB seems to have an effect on allergic rhinitis. PMID:20130774

  2. Concentrations of H1-Receptor Antagonist in the Human Nasal Mucosa

    Directory of Open Access Journals (Sweden)

    Haruo Takahashi

    2009-01-01

    Full Text Available Aims. To measure blood and tissue concentrations of the H1-receptor antagonist, bepotastine besilate (BB. Methods. Participants included 14 men and six women, whose age ranged from 13 to 76 years, with chronic rhinosinusitis, who underwent endoscopic sinus surgery at our university hospital. Among them, 10 participants had allergic rhinitis (AR (Group I, and others did not have AR (Group II. Nasal mucosa and blood were collected 55 to 130 minutes after oral administration of BB 10?mg. Concentrations of the agent in the serum and nasal mucosa were measured by high-performance liquid chromatography. Results. Concentrations of BB of the serum in Group I and II were 98±32?ng/mL and 112±39?ng/mL. Those of the nasal mucosa tissue in Groups I and II were 101±36?ng/g and 132±44?ng/g. There was no significant difference in the values of concentration of BB between the serum and the nasal mucosa in either Group I or II (P=.757 and P=.2662, resp., Paired t-test. Conclusion. This preliminary study is considered the first report on the concentration of H1-receptor antagonists in nasal mucosa. The prompt absorption and transition to the nasal mucosa of BB seems to have an effect on allergic rhinitis.

  3. The Fresh Frozen Bone Allograft (FFBA) to Reconstruct the Atrophic Maxilla: Evaluation of the Clinical and Histological Viability at Six and Nine Months in the Maxillary Sinus / Aloinjerto Óseo Fresco Congelado (FFBA) en la Reconstrucción del Maxilar Atrófico: Evaluación de la Viabilidad Clínica e Histológica a los Seis y Nueve Meses en el Seno Maxilar

    Scientific Electronic Library Online (English)

    Ana Paula F, Bassi; Rogerio Acedo, Vieira; Marisa Akemi, Matsumoto; Iris Monica, Steckelberg; Gabriel, Ramalho-Ferreira; Leonardo Perez, Faverani.

    2013-08-01

    Full Text Available El objetivo fue analizar clínica e histológicamente el injerto óseo alógeno a los 6 y 9 meses. Una paciente sexo femenino, leucoderma de 55 años de edad consultó por atención odontológica para la rehabilitación oral con implantes y prótesis fija implanto soportada en el maxilar. Procedimientos de el [...] evación del seno maxilar bilateralmente fueron realizados en la misma paciente, y se hicieron los análisis después del sexto y noveno mes, respectivamente. Al sexto mes, se observó una remodelación ósea deficiente de la región asociada a la presencia de tejido conectivo fibroso en el tejido analizado, demostrando que no era la mejor etapa de maduración óseo para instalar los implantes. Al noveno mes se observo una mejora, con un tejido óseo mas organizado rodeando partículas de hueso homogéneo, el cual posiblemente incrementaría la estabilidad del implante en el momento de la cirugía. No hay dudas respecto del incremento de aplicaciones clínicas del FFBA, pero no hay estudios capaces de estandarizar el tiempo de carga de los implantes instalados sobre aloinjertos. Investigaciones con seguimientos a largo plazo son necesarios para eliminar las preguntas que aun se mantienen sin respuesta. Abstract in english This work aimed to analyze clinically and histologically the allogen bone graft behavior at 6 and 9 months. A leukoderm, female, 55 years old patient sought dental care for oral rehabilitation with dental implants and implant supported fixed prosthesis in the maxilla. Bilateral sinus lifting procedu [...] re were performed in a same patient, the analysis were made after 6 and 9 months, respectively. At 6 months, there was lack of a better bone remodeling in the region, associated to the presence of fibrous connective tissue within the collected tissue, showing us that this is not the best stage of tissue maturation to place dental implants. The 9 months period showed an improvement, with a more organized bone tissue surrounding particles of homogenous bone, what possibly had increased implant stability at the time of surgery. There is no doubt about the increase of clinical applications of FFBA, but there are no studies available regarding the standardization of time to load implants inserted in allografts. So papers with long-term monitoring are necessary to eliminate questions that still remain to be answered.

  4. Managing the severely proclined maxillary anteriors by extracting traumatized right maxillary central incisor

    Directory of Open Access Journals (Sweden)

    Mahesh Jain

    2014-01-01

    Full Text Available A 14-year-old girl reported with severely proclined maxillary anterior teeth with fractured and discolored right maxillary central incisor with questionable prognosis. Autotransplantation of premolar to replace central incisor was considered a risky option as patient was 14-year-old with presence of advanced root development of premolar. The immediate placement of the prosthetic implant was also not possible because of patient?s age. Therefore, it was decided to use the space obtained by extracting questionable maxillary right central incisor for orthodontic purpose and also sacrificing the healthy premolar is invariably an excessive biological cost for a modest functional and aesthetic gain. Hence, the treatment plan for this case includes extraction of right maxillary central incisor and left maxillary first premolar, movement of right maxillary lateral incisor mesially, achieving normal axial inclination of maxillary anteriors with normal overjet and overbite. Mandibular arch was treated nonextraction due to congenitally missing central incisors with presence of normally inclined lower anteriors thereby maintaining Angles class I occlusion. Tipping, usually, seen in Begg mechanotherapy was used for our advantage to correct severely proclined maxillary anteriors with simultaneous bite opening mechanics. Case was completed in 19 months and posttreatment records including photographs, radiographs and study models were made. Begg wrap around the retainer was placed in the maxillary arch allowing natural settling of occlusion.

  5. Full mouth implant rehabilitation of a patient with ectodermal dysplasia after orthognathic surgery, sinus and ridge augmentation: a clinical report

    OpenAIRE

    Bayat, Mohammad; Khobyari, Mohammad Mohsen; Dalband, Mohsen; Momen-Heravi, Fatemeh

    2011-01-01

    An 18-year-old male presented severe hypodontia due to hypohidrotic ectodermal dysplasia was treated with Le Fort I maxillary osteotomy with simultaneous sinus floor augmentation using the mixture of cortical autogenous bone graft harvested from iliac crest and organic Bio-Oss to position the maxilla in a right occlusal plane with respect to the mandible, and to construct adequate bone volume at posterior maxilla allowing proper implant placement. Due to the poor bone quality at other sites, ...

  6. Endoscopic Orientation of the Parasellar Region in Sphenoid Sinus with Ill-Defined Bony Landmarks: An Anatomic Study

    OpenAIRE

    Amin, Sameh M.; Ashraf Y. Nasr; Hamid A. Saleh; Foad, Mohamed M.; Herzallah, Islam R.

    2010-01-01

    The sphenoid bony landmarks are important for endoscopic orientation in skull base surgery but show a wide range of variations. We aimed to describe an instructional model for the endoscopic parasellar anatomy in sphenoid sinuses with ill-defined bony landmarks. Five preserved injected cadaveric heads and four sides of dry skulls were studied endoscopically via transethmoid, transsphenoidal approach. The parasellar region was exposed by drilling along the maxillary nerve (V2) canal [the lengt...

  7. Cirugía periapical en dientes posteriores maxilares: Revisión de la bibliografía / Periapical surgery of maxillary posterior teeth: A review of the literature

    Scientific Electronic Library Online (English)

    Berta, García; Luis, Martorell; Eva, Martí; Miguel, Peñarrocha.

    2006-04-01

    Full Text Available En los últimos años, la cirugía periapical ha evolucionado gracias a la incorporación de avances diagnósticos y técnicos. El objetivo del presente artículo es realizar una revisión bibliográfica de los trabajos publicados sobre cirugía periapical en los dientes antrales; hemos revisado el Medline y [...] las revistas españolas de Odontología desde 1974 hasta el 2003. Comentamos la anatomía del seno maxilar, el diagnóstico de las lesiones periapicales y la relación del seno maxilar con los dientes antrales; también la técnica quirúrgica, sus consideraciones especiales, y el pronóstico de la cirugía periapical en estos dientes. Los trabajos recientes plantean que la proximidad de los dientes antrales al seno maxilar, no es una contraindicación para la cirugía periapical, y recomiendan su realización en dientes con patología periapical crónica, refractarios al tratamiento endodóncico convencional, a pesar de la proximidad del seno maxilar. Abstract in english In recent years, periapical surgery has evolved thanks to new diagnostic and technical advances. A review is made of the literature on periapical surgery of the antral teeth, based on a Medline search and on the revision of Spanish dental journals in the period between 1974 and 2003. The anatomy of [...] the maxillary sinus is discussed, along with the diagnosis of periapical lesions and the relation of the maxillary sinus to the antral teeth. The surgical technique, special considerations and prognosis of periapical surgery in these teeth are also addressed. Recent studies postulate that the proximity of the antral teeth to the maxillary sinus should not be viewed as a contraindication to periapical surgery, and recommend such surgery in teeth with chronic periapical disease that are refractory to conventional endodontic management, despite the proximity of the maxillary sinus.

  8. Immediate loading of maxillary fixed prostheses retained by zygomatic and conventional implants: 24-month preliminary data for a series of clinical case reports

    OpenAIRE

    BASSI, Francesco; SCHIERANO, Gianmario

    2008-01-01

    PURPOSE: To evaluate the success rate of immediately loaded conventional implants placed in the premaxilla in association with 2 zygomatic implants. MATERIALS AND METHODS: All patients included had worn complete maxillary dentures for at least 2 years. They were required to have no severe systemic pathologies and could not be on any drugs. They could not have any oral infection, uncontrolled periodontal disease, sinusitis, parafunctional signs, alteration of the occlusal plane, or smoking hab...

  9. Minimally Invasive Treatment for Hard Palate-Invading Maxillary Keratocystic Odontogenic Tumor.

    Science.gov (United States)

    Nomura, Kazuhiro; Arakawa, Kazuya; Fujishima, Fumiyoshi; Yamazaki, Yuto; Ozawa, Daiki; Nomura, Yuri; Hidaka, Hiroshi; Yoshida, Naohiro; Katori, Yukio

    2015-01-01

    Keratocystic odontogenic tumor (KCOT) is one of the benign developmental odontogenic cystic lesions arising from impacted teeth. In comparison to other odontogenic cysts, such as radicular cysts and dentigerous cysts, KCOT is known to be more aggressive and is associated with a relatively high recurrence rate. Traditionally, KCOT has been treated with total resection through sublabial incision. Marsupialization is advocated to reduce surgical invasion. However in all the cases, marsupialization was performed in the oral cavity. With the recent development of appropriate instruments and the endoscopic modified medial maxillectomy (EMMM) technique, which allows preservation of the inferior turbinate and nasolacrimal duct, an exclusive endoscopic approach to KCOT becomes possible. However, when the KCOT invades the hard palate, total resection of the tumor requires subtotal maxillectomy including hard palate. Consequently, as the maxillary sinus connects to the oral cavity, life-long use of a prosthesis becomes mandatory. Here we report a case of a seventeen-year-old female with a hard palate-invading KCOT who was successfully treated with the EMMM approach. The KCOT was fenestrated to the nasal cavity, leading to preservation of the hard palate. The lesion invading the hard palate was found to remain unchanged over one year upon follow-up. The trans-nasal approach with EMMM is a direct, minimally invasive method providing a direct field of view for the treatment of maxillary odontogenic cysts. Marsupialization of the KCOT with the EMMM technique might be a viable treatment option if the maxillary KCOT invades surrounding structures. PMID:26567556

  10. Maxillary reconstruction to enable implant insertion: a retrospective study of 181 patients

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    Carneiro José Mario

    2008-12-01

    Full Text Available Abstract Background The purpose of the present study was to evaluate different types of maxillary pre-prosthetic surgery using autogenous bone graft and suggest a guideline for maxillary reconstruction to place implant. Methods 181 patients (125 females and 56 males, age range from 16 to 76 years old, were operated at the Maxillo-Facial Service of the Lille's 2 Universitary Hospital Center (Chairman Pr Joël Ferri. Different techniques were used, but always with autogenous bone grafting. 21 patients underwent a Lefort 1 procedure, 139 underwent sinus graft with or without vestibular onlay graft and 21 underwent onlay graft. This surgical procedure was made to allow the insertion of 685 implants. Results The patients were evaluated by clinical and radiological assessment. In the cases of Lefort 1, the rate of successful osteointegration was higher when the implants were placed in the second part of a two stages procedure: 92%, against 81% for one stage. In cases of sinus lift procedure, the rate of implant success was 98%. The infection rate was 3.5%. There was no significant resorption and the type of prosthesis used was a denture retained by a bar or fixed bridge. In cases of onlay graft, the implant insertion success was 97% and there was no infection. The amount of resorption was more significant in the pre-maxilla than in the other areas and the type of prosthesis used was fixed dentures. Conclusion These observations demonstrate that: the aetiology of the bone defect indicate the type and number of the surgical procedures to re-established good jaws relationship and give the bone conditions to implant insertion successful. Clinical Relevance A guideline for surgical decision in the maxillary reconstruction for oral rehabilitation by implants may help to prevent failures of osseous resorption disorders and to foresee the investment of the bone in quality and necessary quantity.

  11. Graft-Free Sinus Augmentation Procedure: a Literature Review

    Directory of Open Access Journals (Sweden)

    Ginnady Pinchasov

    2014-04-01

    Full Text Available Objectives: The restoration of edentulous posterior maxilla with dental implants is challenging due to a deficient posterior alveolar ridge. Over the last decade an advance in the graftless bone augmentation procedures had occurred where the space left beneath the Schneiderian membrane is filled with blood clot in order to produce bone formation. The aim of present article is to review the scientific literature with respect to bone formation in the sinus, after membrane elevation procedure, without using any bone substitutes. Material and Methods: A comprehensive review of the current literature was conducted according to the PRISMA guidelines by accessing the NCBI PubMed database. The articles were searched from 1993 to 2013. English language articles with minimum one year patient follow-up and radiological and/or histological diagnostics of newly formed bone were included. Articles were excluded, if usage of bone graft or bone substitutes and/or usage of osteotome has been made during sinus lift operation. Results: A total of 19 studies were included: 2 studies were related to the sinus membrane’s osteogenic potential, 3 to the histological evidence of bone formation in monkeys and humans, 12 to the radiologic evidence of bone gain, and 2 to the space-maintaining management. 100% of the reviewed articles presented with increased bone formation and high implant survival rates resulting from the graft-free technique. Conclusions: It is clearly shown in the review that the potential of the maxillary sinus to heal and to form new bone without bone grafts or substitutes is of high nature.

  12. Expression of cysLT1 and cysLT2 Receptor in Chronic Hyperplastic Eosinophilic Sinusitis

    International Nuclear Information System (INIS)

    Elevated production of cysteinyl leukotrienes (cysLTs) from sinus tissues and abundant sinus eosinophils are characteristic features of chronic hyperplastic eosinophilic sinusitis (CHS). CysLTs exert their action through G-protein-coupled receptors named cysLTs receptor type I (cysLT1R) and type II (cysLT2R). These expressions of cysLT receptors in the sinus mucosa have yet to be clarified and the relationship between eosinophilia and the expression of these receptors remains obscure. We compared the expressions of cysLT1R and cysLT2R in the sinus mucosa in patients with CHS, non-eosinophilic chronic sinusitis (NECS), and control sinus tissues; and analyzed the correlation between the expression of CysLTRs and the presence of sinus eosinophils by immunohistochemistry and real-time PCR. A significantly higher percentage of eosinophils expressing cysLT2R protein was observed in patients with CHS compared with NECS and controls. In addition, cysLT2R mRNA expression in CHS was significantly higher than in NECS and controls. Furthermore, a positive correlation was observed between cysLT2R mRNA expression and the number of infiltrated eosinophils. In contrast, the cysLT1R mRNA expression did not differ significantly among these groups. The effect of cysLTs on sinus eosinophils may be mediated through the cysLT2R in patients with CHS. These results may suggest the therapeutic benefit of cysLT2R antagonists in CHS

  13. Diseases of the nose and paranasal sinuses in child

    Directory of Open Access Journals (Sweden)

    Stenner, Markus

    2014-12-01

    Full Text Available [english] Diseases of the pediatric nose and nasal sinuses as well as neighboring anatomical structures encompass a variety of pathologies, especially of inflammatory nature. Congenital disease, such as malformations and structural deviations of the nasal septum, as well as systemic metabolic pathologies affecting the nose and sinuses, rarely require medical therapy from an Otolaryngologist. The immunological function of the mucosa and genetic factors play a role in the development of disease in the pediatric upper airway tract, especially due to the constantly changing anatomy in this growth phase. Disease description of the nose and nasal sinuses due to mid-facial growth must also take developmental age differences (infant, toddler, preschool, and school age into account. Epidemiological examinations and evidence based studies are often lacking in the pediatric population.The wide range of inflammatory diseases of the nose and paranasal sinuses, such as the acute and chronic rhinosinusitis, the allergic rhinitis, and adenoid disease, play a role in the susceptibility of a child to infection. The susceptibility to infection depends on the pediatric age structure (infant, young child and has yet to be well defined. The acute rhinosinusitis in children develops after a viral infection of the upper airways, also referred to as the “common cold” in the literature. It usually spontaneously heals within ten days without any medical therapy. Antibiotic therapy is prudent in complicated episodes of ARS. The antibiotic therapy is reserved for children with complications or associated disease, such as bronchial asthma and/or chronic bronchitis. A chronic rhinosinusitis is defined as the inflammatory change in the nasal mucosa and nasal sinus mucosa, in which the corresponding symptoms persist for over 12 weeks. The indication for CT-imaging of the nasal sinuses is reserved for cases of chronic rhinosinusitis that have been successfully treated with medication. A staged therapeutic concept is followed in CRS based on conservative and surgical methods. Nasal sinus surgery is considered nowadays as effective and safe in children. Based on the assumption that adenoids are a reservoir for bacteria, from which recurrent infections of the nose and nasal sinus originate, the adenoidectomy is still defined as a cleansing procedure in rhinosinusitis. 69.3% of the children had benefit from adenoidectomy. Comorbidities, such as pediatric bronchial asthma, presently play an even more important role in the therapy of rhinosinusitis; therefore, it is often wise to have the support of pediatricians. In western European countries 40% of children presently suffer from allergic rhinitis, in which pronounced nasal obstruction can cause disturbed growth in facial bones. An early therapy with SIT may prevent the development of bronchial asthma and secondary sensitization to other allergens. Therefore, SIT is recommended in treatment of allergic rhinitis whenever, if possible. The assessment of diagnostic tools is for the examiner not often possible due to the lack of evidence. Rhinosurgical approaches are often described in study reports; however, they lack the standard prospective randomized long-term study design required nowadays and can only be evaluated with caution in the literature.

  14. Cerebral and Sinus Vein Thrombosis

    Science.gov (United States)

    ... Introduction A blood clot in the veins that drain the blood from the brain is called a sinus or cerebral vein thrombosis. ... Normally, blood is transported through arteries into the brain, where it delivers ... veins) that drain into large veins, called sinus veins ( Figure 1 ). ...

  15. MgNd2 alloy in contact with nasal mucosa: an in vivo and in vitro approach.

    Science.gov (United States)

    Eifler, R; Seitz, J-M; Weber, C M; Grundke, S; Reifenrath, J; Kietzmann, M; Lenarz, T H; Maier, H J; Klose, C; Durisin, M

    2016-02-01

    Biodegradable and biocompatible magnesium alloys appear to be very promising not only for temporary clinical application but also for developing deformable and degradable medical implants. This study analyzes the in vivo degradation behavior and the impact on the paranasal sinuses of the highly ductile Mg-2 wt%Nd alloy (MgNd2) in order to provide a basis for a satisfying stent system for the therapy of a chronic sinusitis. Moreover, in vitro tests were carried out on primary porcine nasal epithelial cells (PNEC). For the in vivo tests, cylindrical MgNd2 specimens were implanted into the sinus' mucosa of minipigs. During and after a total period of 180 days the long-term biodegradation and biocompatibility properties after direct contact with the physiological tissue were analyzed. Biodegradation was investigated by measuring the mass and volume losses of the MgNd2 specimens as well as by performing element analyses to obtain information about the degradation layer. The influence on the surrounding tissue of paranasal sinuses was evaluated by endoscopic and histopathological examinations of the mucosa. Here, only a locally unspecific chronic infection was found. The degradation rate showed a maximum after 45 days postsurgery and was determined to decrease subsequently. In vitro experiments using PNEC showed adequate biocompatibility of MgNd2. This study demonstrates a good in vivo biocompatibility for MgNd2 in the system of paranasal sinuses and underlines the promising properties of alloy MgNd2 for biodegradable nasal stent applications. PMID:26704542

  16. Pilonidal sinus – challenges and solutions

    Directory of Open Access Journals (Sweden)

    Guner A

    2015-09-01

    Full Text Available Ali Guner, Arif Burak Cekic Department of General Surgery, Karadeniz Technical University, Farabi Hospital, Trabzon, Turkey Abstract: Although it is clinically asymptomatic in some cases, pilonidal sinus disease may also present as a complicated disease, characterized by multiple sinus tracts, leading to severe impairment of patient quality of life. Although clinical studies of pilonidal sinus have been conducted for approximately a century, the gold standard for treatment is undefined. The ideal treatment requires a shorter hospital stay, requires less wound care, results in rapid recovery, maintains quality of life, and has low recurrence rates. In this review, we aim to discuss the challenges and possible solutions for the management of pilonidal sinus disease. Keywords: pilonidal sinus disease, surgery, management, complications, recurrence

  17. Cirugía endoscópica en niños y adolescentes con rinosinusitis: Perfil inmunológico y bacteriológico / Endoscopic sinus surgery in children and adolescent with rhino sinusitis: Immunologic and bacteriologic profile

    Scientific Electronic Library Online (English)

    María José, Herrera J; Gloria, Ribalta L.

    2012-04-01

    Full Text Available Introducción: La rinosinusitis, corresponde a un grupo de desórdenes que se caracteriza por la inflamación de la mucosa tanto de cavidades paranasales (CPN) como de fosas nasales. Está determinada por factores del huésped y ambientales que interactúan causando un estado inflamatorio persistente que [...] produce remodelación de la mucosa. Entre éstos se destacan la alergia y otras alteraciones inmunológicas junto con la colonización por agentes infecciosos. Objetivo: Determinar las características demográficas, clínicas, inmunológicas y agentes infecciosos involucrados en la rinosinusitis crónica (RSC) y rinosinusitis aguda (RSA) recurrente de niños y adolescentes sometidos a cirugía endoscópica funcional (CEF). Establecer las posibles asociaciones de estas características con la necesidad de reoperación y la recurrencia de la enfermedad. Material y método: Estudio retrospectivo observacional en que se evalúan 28 niños y adolescentes sometidos a CEF en el servicio de ORL de Clínica Las Condes durante los años 2000 a 2009. Todos los pacientes contaban con estudio inmunológico y test cutáneo preoperatorio más biopsia de mucosa de CPN y cultivos intraoperatorios de secreción de CPN. Los análisis estadísticos se realizaron con test de Anova para los análisis descriptivos y para el análisis de grupos el test de Fisher. Considerando como significativo un p Abstract in english Introduction: Rhino sinusitis is a group of disorders characterized by inflammation of the mucosa of both sinuses and nostrils. It is determined by environmental and host factors that interact causing a persistent inflammatory condition that causes remodeling of the mucosa. Chief among these are all [...] ergy and other immune disorders with colonization by infectious agents. Aim: To determine the demographic, clinical, immunologic and infectious agents involved in chronic Rhino sinusitis (CRS) and Recurrent Acute Rhino sinusitis (RAR) in children and adolescents undergoing functional endoscopic sinus surgery (FESS). Establish the possible associations of these characteristics with the need for re operation and recurrence of the disease. Material and method: Retrospective observational study that evaluated 28 children and adolescents involved in the ENT department at Clínica Las Condes, Santiago, Chile during the years 2000 to 2009. All study patients had preoperative Prick test, immune workout and intraoperative Para nasal mucosal biopsy and cultures of Para nasal secretion. Statistical analysis was performed using ANOVA test for descriptive analysis and cluster analysis with Fisher Exact test. Results were considered significant with p

  18. Radiologic evaluation of the maxillary natural pathologic conditions in children

    Energy Technology Data Exchange (ETDEWEB)

    Prk, Tae Won; Choi, Soon Chul [Dept. of Oral Radiology, College of Dentistry, Seoul National University, Seoul (Korea, Republic of)

    1992-08-15

    The authors evaluated the distribution of the antral pathologic conditions and their radiographic features on the Waters' radiographs of 151 children patients who had been radiographed at the department of Oral Radiology, Seoul National University Hospitals. The obtained results were as follows : 1. The most common pathologic condition was inflammatory change (58%). Percentage of cases showing cystic lesion and fibro-osseous lesion were 25% and 11% respectively. 2. In cases of inflammatory change, odontogenic origins were 12 cases (13%) and bilateral occurrences were 37 cases (39%). 3. The most common radiographic feature of the inflammatory conditions was various types of mucosal thickening (78%). Percentage of cases showing totally increased radiopacity was 18%. 4. Intrinsic cystic lesions were 26 cases (65%) and dentigerous cyst was the most common extrinsic cyst. 5. Most of the fibro-osseous lesions (15 from 17 cases) were fobrous dysplasea. 6. Maxillary sinus hypoplasia (5 cases) and Burkitt's lymphoma (4 cases) were also observed.

  19. Sinusitis with eosinophilic otitis media

    International Nuclear Information System (INIS)

    Eosinophilic otitis media is an intractable inflammation of the middle ear combined with bronchial asthma. According to a national epidemiological investigation on eosinophilic otitis media, it is assumed that eosinophilic otitis media are combined with sinusitis in about 74% of their cases. On the other hand, organizational images of eosinophilic otitis media and eosinophilic sinusitis are similar, and steroid therapy is effective together, and it is thought that they are involved in the idea of one airway one disease, but the details of sinusitis combined with the eosinophilic otitis media are unidentified. Therefore, we examined the kinds of the sinusitis combined with eosinophilic otitis media. We diagnosed 18 cases (male: 2 cases, female: 16 cases) (average age: 54.6 years old) as eosinophilic otitis media according to the diagnostic criteria. And, by the CT views of a paranasal sinus, blood tests, existence of the nasal polyp, etc, we investigated the kinds of sinusitis combined with eosinophilic otitis media. It turned out that bronchial asthma was combined with eosinophilic otitis media in 17 of 18 cases (airway hypersensitivity did sthenia of one case, but the asthma did not yet developed), and 6 cases were combined with aspirin induced asthma (AIA), and 3 cases were combined with Churg-Strauss syndromes (CSS). 10 case (55.6%) of 17 eosinophilic otitis media were combined with eosinophilic sinusitis. And 4 cases (22.2%) of 17 eosinophilic otitis media were combined with chronic sinusitis, 4 cases (22.2%) of 17 eosinophilic otitis media were not combined with sinusitis. We concluded that eosinophilic otitis media was not always combined with eosinophilic sinusitis. The idea of one airway one disease was not applied to this examination. (author)

  20. Variações anatômicas e sinusopatias: estudo por tomografia computadorizada / Anatomical variations and sinusitis: a computed tomographic study

    Scientific Electronic Library Online (English)

    Marcio M., Kinsui; Arnaldo, Guilherme; Hélio K., Yamashita.

    2002-10-01

    Full Text Available Introdução: A tomografia computadorizada tem sido cada vez mais utilizada para a identificação e avaliação das variações anatômicas das cavidades nasais que podem levar às sinusites. Objetivo: Avaliar, por meio da tomografia computadorizada, a incidência de espessamento mucoso nos seios paranasais d [...] e pacientes com sintomas de sinusite e a correlação entre sinusopatias e presença de célula de Haller, concha média bolhosa e desvio de septo nasal localizado no meato médio. Forma de Estudo: Clínico retrospectivo. Material e Método: Foram avaliadas retrospectivamente 150 tomografias computadorizadas de seios paranasais de pacientes com idade igual ou superior a 13 anos, realizadas no Departamento de Diagnóstico por Imagem da Universidade Federal de São Paulo - Escola Paulista de Medicina, no período de julho de 1999 a outubro de 2001. Foram excluídos os exames de pacientes com pós-operatório de cirurgias de seios paranasais e de base de crânio, além dos portadores de lesões tumorais envolvendo estas regiões. Resultados: 70% dos pacientes apresentavam espessamento mucoso em pelo menos um dos seios paranasais. Observou-se a freqüência de 52,7% de sinusopatia maxilar, 28,0% de etmoidal, 13,0% de esfenoidal e 8,3% de frontal. Concha média bolhosa foi encontrada em 33,3% das cavidades nasais, desvio de septo nasal localizado no meato médio em 23,3% e célula de Haller em 9,3%. Conclusões: Os seios paranasais mais freqüentemente acometidos foram, em ordem decrescente: maxilar, etmoidal, esfenoidal e frontal. Não foi observado correlação entre sinusopatias e presença de célula de Haller, concha média bolhosa e desvio de septo nasal localizado no meato médio. Abstract in english Introduction: Computed tomography has been increasingly used both to identify and to evaluate anatomy variations of nasal cavities that can lead to the development of sinusitis. Purpose: The purpose of the present study is to determine the incidence of mucosal abnormalities in paranasal sinuses foun [...] d in CT scans of patients with symptons of sinusitis and analyze the correlation between sinusitis and presence of Haller's cell, concha bullosa and nasal septal deviation located in middle meatus. Study Design: Clinical retrospective. Material and Method: Paranasal sinus CT scans were obtained in 150 patients aged 13 years or more, from July 1999 to October 2001. The CT scans were performed in the Department of Radiology of Universidade Federal de São Paulo - Escola Paulista de Medicina. Patients with history of skull base or sinus surgery and tumor in these regions were excluded. Results: 70% of patients present mucosal abnormalities at least in one paranasal sinus. Maxillary sinusitis were observed in 52,7% of sinus, ethmoidal sinusitis in 28,0%, sphenoidal sinusitis in 13,0% and frontal sinusitis in 8,3%. Concha bullosa was observed in 33,3% of nasal cavities, nasal septal deviation (located in middle meatus) in 23,3% and Haller's cell in 9,3%. Conclusions: The most affected paranasal sinuses were: maxillary, ethmoid, sphenoid and frontal. Correlation between sinusitis and presence of Haller's cell, concha bullosa and nasal septal deviation (located in middle meatus) was not observed.

  1. Myoepithelial carcinoma of buccal mucosa: A rare tumor

    Directory of Open Access Journals (Sweden)

    Jeevan Lata

    2014-01-01

    Full Text Available Myoepithelial carcinoma is a rare neoplasm of salivary glands that account for < 1% of all salivary gland tumors. The most common sites of involvement are major salivary glands mainly parotid gland. Intraorally, it can arise from minor salivary glands; palate is the most common site of occurrence. It also occurs in nasopharynx, paranasal sinuses, nasal cavity and larynx in head and neck region. Myoepithelial tumors were first described in 1943. Their malignant variant, myoepithelial carcinoma, was first reported by Stromeyer et al., in 1975, characterized by distinct morphologic heterogeneity and an infiltrative growth pattern into adjacent tissues. Here, we report a rare case of a 55-year-old female with myoepithelial carcinoma of buccal mucosa. It was also rare because of unusual location of tumor. Our patient was treated with wide local resection and remained free of disease for 15 months.

  2. Platelet Rich Fibrin (P.R.F. in Reconstructive Surgery of Atrophied Maxillary Bones: Clinical and Histological Evaluations

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    Marco Tatullo, Massimo Marrelli, Michele Cassetta, Andrea Pacifici, Luigi Vito Stefanelli, Salvatore Scacco, Gianna Dipalma, Luciano Pacifici, Francesco Inchingolo

    2012-01-01

    Full Text Available Introduction. Maxillary bone losses often require additional regenerative procedures: as a supplement to the procedures of tissue regeneration, a platelet concentrate called PRF (Platelet Rich Fibrin was tested for the first time in France by Dr. Choukroun.Aim of the present study is to investigate, clinically and histologically, the potential use of PRF, associated with deproteinized bovine bone (Bio-Oss, as grafting materials in pre-implantology sinus grafting of severe maxillary atrophy, in comparison with a control group, in which only deproteinized bovine bone (Bio-Oss was used as reconstructive material.Materials and Methods. 60 patients were recruited using the cluster-sampling method; inclusion criteria were maxillary atrophy with residual ridge < 5mm. The major atrophies in selected patients involved sinus-lift, with a second-look reopening for the implant insertion phase. The used grafting materials were: a Bio-Oss and b amorphous and membranous PRF together with Bio-Oss. We performed all operations by means of piezosurgery in order to reduce trauma and to optimize the design of the operculum on the cortical bone. The reopening of the surgical area was scheduled at 3 different times.Results. 72 sinus lifts were performed with subsequent implants insertions.We want to underline how the histological results proved that the samples collected after 106 days (Early protocol with the adding of PRF were constituted by lamellar bone tissue with an interposed stroma that appeared relaxed and richly vascularized.Conclusions. The use of PRF and piezosurgery reduced the healing time, compared to the 150 days described in literature, favoring optimal bone regeneration. At 106 days, it is already possible to achieve good primary stability of endosseous implants, though lacking of functional loading.

  3. Squamous cell carcinoma arising from pilonidal sinus.

    Science.gov (United States)

    Pandey, Mithilesh K; Gupta, Puneet; Khanna, Ajay K

    2014-08-01

    Pilonidal sinus is usually present in the sacrococcygeal region. The common presentations are cellulitis, abscess or sinus. Rarely malignant change may be seen in chronic pilonidal sinus. We report a case of chronic pilonidal sinus complicated with squamous cell carcinoma. PMID:23050944

  4. Rinossinusite nosocomial em unidade de terapia intensiva: estudo microbiológico Nosocomial sinusitis in an intensive care unit: a microbiological study

    Directory of Open Access Journals (Sweden)

    Leonardo Lopes Balsalobre Filho

    2011-02-01

    Full Text Available Rinossinusite Nosocomial é uma complicação frequente de pacientes tratados em UTI. É importante o diagnóstico e tratamento precoce para prevenir complicações graves como pneumonia, sepse, meningite e abscesso intracraniano. OBJETIVO: Identificar os agentes causadores de sinusite em UTI através do swab nasal e da punção de seio maxilar, correlacionando seus resultados. MÉTODO: Pacientes atendidos nas unidades de terapia intensiva com diagnóstico tomográfico de sinusopatia maxilar uni ou bilateral foram submetidos ao swab nasal e punção do seio acometido com material enviado para cultura e antibiograma. RESULTADOS: O presente estudo avaliou 22 pacientes. Houve concordância entre o agente microbiano isolado no swab e na punção em 14 dos 22 casos (63%. A flora aeróbia gram negativa foi a mais encontrada com predomínio da Pseudomonas aeruginosa (29% nas punções, seguido de Proteus mirabillis (26% e Acinetobacter baumanni (14%. Houve alto índice de resistência aos antibióticos usados. CONCLUSÃO: A punção direta do seio maxilar acometido em pacientes em UTI com sinusite parece ser o melhor método para identificar os agentes bacterianos e, através do seu antibiograma, direcionar a conduta terapêutica antimicrobiana. O swab mostrou ter pouco valor diagnóstico, com concordância de 63%, podendo ser reservado para casos onde a punção está contraindicada.Nosocomial sinusitis is a common complication of patients in ICUs. Its diagnosis is important, and early treatment is required to avoid serious complications such as pneumonia, sepsis, meningitis, and intracranial abscesses. AIM: To identify the germs causing sinusitis in ICUs by nasal swabs and maxillary sinus puncture, and to correlate these results. METHODS: ICU patients with a diagnosis (CT confirmed of maxillary sinusitis underwent nasal swab and puncture of the sinus to collect material for culture and antibiogram. RESULTS: This study evaluated 22 patients. The microbial agent isolated in the swab correlated with the agent in the puncture in 14 of 22 cases (63%. Gram-negative bacteria were the most frequent, as follows: Pseudomonas aeruginosa (29% of punctures, following by Proteus mirabillis (26% and Acinetobacter baumanni (14%. The resistance index in the antibiogram was high to antibiotics. CONCLUSION: Maxillary sinus puncture of ICU patients with sinusitis appears to be the best method for identifying bacteria; antibiograms demonstrate resistance to therapy. The swab has little diagnostic value; the correlation was 63%. It may be used when sinus puncture is contraindicated.

  5. Radiographic follow-up evaluation of sinus augmentation with deproteinized bovine bone and implant installation after loading

    Directory of Open Access Journals (Sweden)

    Park Jun-Beom

    2010-01-01

    Full Text Available Computed tomography (CT has been used in diagnosis and implant treatment, and CT can be used to assess the dimensional stability of graft materials after maxillary sinus augmentation. A 50-year-old male patient was treated for the simultaneous placement of implants with sinus augmentation and two post-operative CT scans were performed after the delivery of the prosthesis at 9 months and 15 months after the operation. There were no significant changes in alveolar bone height and the buccal window seemed to show remodeling over time. The continuity of the defect and the cortication were apparent in the 15-month post-operative CT scan. Implants installed simultaneously with sinus augmentation were well in function and the graft material seemed to be stable in maintaining tissue dimensions after the loading of the implants. The presented results need to be validated in further large case series or case-controlled studies.

  6. Headache induced by isolated sphenoid fungal sinusitis: sinus headache?

    OpenAIRE

    Kwon, Moon Oh; Kim, Kyung Soo

    2009-01-01

    In this article, we report a case of isolated sphenoid fungal sinusitis which only presented as headache. We review the literature of this rare but interesting lesion according to the revised 2004 IHS diagnostic criteria for “Headache attributed to Rhinosinusitis”.

  7. Computed tomography diagnostic of chronic rhino sinusitis

    International Nuclear Information System (INIS)

    Ordinary conventional roentgenological examinations of paranasal sinuses does not satisfy the latest needs of otorinolaringologysta, especially for functional endoscopic surgery. Computed tomography of paranasal sinuses because more important for diagnostics of chronic rhino sinusitis and for choosing the appropriate therapy of it. The examination enables to localize pathology precisely, to exactly evaluate anatomic structures, ostiomeatalic complex, the status of mucous membrane of paranasal sinuses and the effectiveness of surgical treatment of chronic rhino sinusitis. (author)

  8. Silent Sinus Syndrome: A Retrospective Review of 11 Cases

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    Karima DARGHAL

    2014-06-01

    Full Text Available Objective: The purpose of this study is to describe the clinical and radiological features of SSS, and to review therapeutic possibilities and their outcomes.Patients and Methods: Retrospective observational case series in the department of Arthur Vernes Institute between Mars 2007 and  Novembre 2012. Clinical records, including ophthalmology and otolaryngology evaluations as well as computed tomography scans and operative reports, were carefully examined. A literature review for relevant studies was performed to examine similar cases.Results: Eleven cases of  SSS were identified. Nine men and two women (sex ratio 4.5, aged between 23 and 54 years (mean, 30 years. there was 3 to 4 mm enophthalmos in 10 cases (90.9%, and hypoglobus in all cases, with no effect on visual function. In all 11 cases, the maxillary roof (orbital floor was drawn downwards, and the one or more walls of the maxilla were concave. In 4 cases septal deviation was present. 8 patients (72.7% underwent endoscopic sinus surgery, while 3 refused it. Septoplasty was performed in 4 cases (36.3%.Conclusion: The silent sinus syndrome is a rare entity. It mainly presents as unilateral enophthalmos in younger people and has very characteristic clinical and radiologic signs.This case series reports our diagnostic and therapeutic experience with this syndrome.

  9. Tuberculosis en senos paranasales / Tuberculosis in paranasal sinuses

    Scientific Electronic Library Online (English)

    Mireysi, Calás Rosales; Marelis, Veranes García; Joaquín, López González; Haidee, Marrero Rodríguez; Ilena, Silva Reyes.

    2014-04-01

    Full Text Available Se presenta el caso clínico de un paciente de 56 años de edad, ingresado en el Servicio de Neumología del Hospital General Docente "Dr. Juan Bruno Zayas Alfonso" de Santiago de Cuba, quien refería que desde hacía 2 años presentaba obstrucción nasal del lado izquierdo que había progresado a ambas fos [...] as nasales, con protrusión del globo ocular del mismo lado, así como dolor de moderada intensidad en la región cervical que limitaba los movimientos en esta región. Se tomaron muestras para biopsia del pólipo en el seno maxilar, cuyos resultados corroboraron la presencia de una enfermedad granulomatosa de origen tuberculoso en los senos paranasales, para lo cual se prescribió la categoría 1 de tratamiento con los 4 medicamentos establecidos a los efectos Abstract in english The case report of a 56 year-old patient is presented, admitted in the Pneumology Service from "Dr. Juan Bruno Zayas Alfonso" Teaching General Hospital in Santiago de Cuba who presented nasal obstruction of the left side since 2 years ago, which had progressed to both nasal cavities, with protrusion [...] of the eye ball of the same side, as well as moderate pain in the cervical region that limited the movements in this region. Samples of the polyp for biopsy ere taken in the maxillary sinus, which results corroborated the presence of a granulomatous disease of tuberculous origin in the paranasal sinuses, for which the category 1 of treatment was prescribed with the 4 drugs for this condition

  10. Minimally invasive endoscopic removal of a massive trabecular juvenile ossifying fibroma of the paranasal sinuses.

    Science.gov (United States)

    Marglani, Osama A; Kassab, Mohammed Y; Raza, Syed A

    2014-08-01

    An 11-year-old female patient presented with left-sided nasal obstruction and upward displacement of the left eye of 3 months duration. Clinical examination revealed a firm mass in the left nasal cavity. A CT scan showed a massive tumor involving the left maxillary sinus with extension into the ethmoid sinus, and encroaching on the left orbit. Histopathological examination revealed trabecular juvenile ossifying fibroma, which was removed via a transnasal endoscopic surgery by the Otorhinolaryngology, Head and Neck and the skull base team. She tolerated the lengthy procedure well, and there was no recurrence postoperatively as the tumor was resected completely. There was no external scarring and no psychological trauma discerned.  PMID:25129190

  11. Neuroregulation of Human Nasal Mucosa

    OpenAIRE

    James N. BARANIUK; Merck, Samantha J.

    2009-01-01

    Multiple subsets of nociceptive, parasympathetic, and sympathetic nerves innervate human nasal mucosa. These play carefully coordinated roles in regulating glandular, vascular, and other processes. These functions are vital for cleaning and humidifying ambient air before it is inhaled into the lungs. The recent identification of distinct classes of nociceptive nerves with unique patterns of transient receptor potential sensory receptor ion channel proteins may account for the polymodal, chemo...

  12. Graft Remodeling following Transcrestal Sinus Floor Elevation via the Gel-Pressure Technique (GPT and Pasteous Nano-Crystalline Hydroxyapatite Bone Substitute

    Directory of Open Access Journals (Sweden)

    Bernhard Pommer

    2015-06-01

    Full Text Available Bone grafting of the maxillary sinus is attempted to compensate for sinus pneumatization and permit reliable insertion of endosseous dental implants for prosthetic rehabilitation. The aim of the present clinical investigation was to study bone regeneration four months after transcrestal sinus floor elevation via the Gel-Pressure Technique (GPT and application of pasteous nano-crystalline hydroxyapatite bone substitute. A total of 25 patients with deficient alveolar ridges in the posterior maxilla (mean residual bone height: 4.7 ± 1.8 mm were subjected to 32 flapless transcrestal sinus floor augmentations and simultaneous insertion of 40 implants. Sinus membrane elevation height averaged 11.2 ± 2.7 mm and minimal vertical graft resorption of 0.1 mm was observed after four months. Radiographic bone density averaged 460 Hounsfield units in regions adjacent to the native jawbone (1 to 7 mm distance, while reduction of bone density by ?7.2%, ?11.3%, ?14.8%, ?19.6% and ?22.7% was recorded in more apical regions of 8, 9, 10, 11, and ?12 mm distance to the original sinus floor, respectively. The results suggest that graft remodeling is completed up to a distance of 7 mm within a healing period of four months after sinus augmentation using nano-crystalline hydroxyapatite bone substitute material.

  13. Cerebral sinus venous thrombosis

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    Hernando Raphael Alvis-Miranda

    2013-01-01

    Full Text Available Cerebral sinus venous thrombosis (CSVT is a rare phenomenon that can be seen with some frequency in young patients. CSVT is a multifactorial condition with gender-related specific causes, with a wide clinical presentation, the leading causes differ between developed and developing countries, converting CSVT in a condition characterized by a highly variable clinical spectra, difficult diagnosis, variable etiologies and prognosis that requires fine medical skills and a high suspicious index. Patients who presents with CSVT should underwent to CT-scan venography (CVT and to the proper inquiry of the generating cause. This disease can affect the cerebral venous drainage and related anatomical structure. The symptoms may appear in relation to increased intracranial pressure imitating a pseudotumorcerebri. Prognosis depends on the early detection. Correcting the cause, generally the complications can be prevented. Mortality trends have diminished, and with the new technologies, surely it will continue. This work aims to review current knowledge about CSVT including its pathogenesis, etiology, clinical manifestations, diagnosis, and treatment.

  14. Cáncer de Senos Paranasales y sus Manifestaciones Orales: Reporte de Dos Casos Clínicos / Paranasal Sinus Cancer and Oral Manifestations: Report of Two Cases

    Scientific Electronic Library Online (English)

    Scarlette, Hernández V; Manuel, Donoso Z; Carlos, Hernández A; Luis, Vásquez S.

    Full Text Available Los carcinomas de senos paranasales son entidades poco frecuentes y cuando se diagnostican, generalmente ya se encuentran en estados avanzados de la enfermedad, dado que el proceso neoplásico en las etapas iniciales crece invadiendo las cavidades paranasales, para luego en etapas avanzadas producir [...] la deformación de las corticales. Dentro de las manifestaciones clínicas se pueden presentar epistaxis, obstrucción nasal, dolor en zona maxilar, dolor o movilidad dentaria. Se presentan dos casos clínicos que dentro de las primeras manifestaciones cursaron con dolor de la zona maxilar y movilidad anormal de un diente. Al momento de realizar el diagnóstico definitivo los procesos tumorales se encontraban muy avanzados, comprometiendo diversas estructuras como seno maxilar, etmoidal, esfenoidal, y piso de órbita, lo que obliga a realizar grandes resecciones de la zona maxilofacial. El rol del odontólogo en el diagnóstico de la enfermedad podría ser de gran importancia, al sospechar que un aumento de volumen del reborde, la movilidad dentaria anormal o un dolor de la zona maxilar no siempre corresponden a causas odontogénicas. Abstract in english Paranasal sinus cancer are rare entities, but when diagnosed, often already in advanced stages of the disease, because the neoplastic process in the initial stages grows invading the paranasal sinuses and then in advanced stages, produces deformation of cortical bone. Among the clinical manifestatio [...] ns epistaxis, nasal obstruction, pain in maxillary area, pain or tooth mobility may occur. We present two clinical cases in which within the first manifestations are the maxillary pain and abnormal tooth mobility. When making the final diagnosis, tumor processes were well advanced, engaging various structures as maxillary sinus, ethmoid, sphenoid, and orbital floor, forcing large resections perform maxillofacial area. The role of the dentist in the diagnosis of the disease could be of great importance, suspecting that an increase maxillary volume, abnormal tooth mobility or pain of the maxillary not always correspond with odontogenic causes.

  15. Reimplantation of cultivated human bone cells from the posterior maxilla for sinus floor augmentation. Histological results from a randomized controlled clinical trial

    DEFF Research Database (Denmark)

    Hermund, N.U.; Stavropoulos, Andreas; Donatsky, O; Nielsen, H.; Clausen, C; Reibel, Jesper; Pakkenberg, Bente; Holmstrup, Palle

    2012-01-01

    OBJECTIVES: The aim of the present randomized clinical study was to evaluate histologically whether the addition of cultivated, autogenous bone cells to a composite graft of deproteinized bovine bone mineral (DBBM) and autogenous bone (AB) for sinus floor augmentation (SFA) enhance bone formation compared with what achieved after SFA with DBBM + AB alone. MATERIAL AND METHODS: Twenty patients with remaining posterior maxillary alveolar crest height of less than 3 mm received SFA after randomizat...

  16. Carcinoma epidermoide sobre sinus pilonidal / Epidermoid carcinoma upon pilonidal sinus

    Scientific Electronic Library Online (English)

    J., Alecha Gil; M., Echenique-Elizondo; J. A., Amondarain; G., Górriz Arias.

    2006-05-01

    Full Text Available INTRODUCCIÓN: La degeneración maligna es una complicación rara observada principalmente en caso de enfermedad pilonidal crónica recurrente y se asocia con un muy mal pronóstico. MATERIAL Y MÉTODOS: Se han revisado 367 pacientes afectos de quiste pilonidal, bien simple o complicado. Entre ellos hemos [...] encontrado 3 casos (0,81%) de carcinoma epidermoide. CONCLUSIÓN: El carcinoma epidermoide de sinus pilonidal es una enfermedad infrecuente asociado a un muy mal pronóstico. Abstract in english INTRODUCTION: Malignant degeneration of pilonidal sinus is a rare complication observed mainly in recurrent chronic cases of the disease, associated to a very bad prognosis. MATERIAL AND METHODS: We have reviewed 367 patients with simple and complicated pilonidal cysts. We found 3 cases (0.81%) of e [...] pidermoid carcinoma. CONCLUSIONS: Pilonidal sinus epidermoid carcinoma is an infrequent disease predicting for very poor outcome.

  17. Sick sinus syndrome: a review.

    Science.gov (United States)

    Semelka, Michael; Gera, Jerome; Usman, Saif

    2013-05-15

    Sick sinus syndrome refers to a collection of disorders marked by the heart's inability to perform its pacemaking function. Predominantly affecting older adults, sick sinus syndrome comprises various arrhythmias, including bradyarrhythmias with or without accompanying tachyarrhythmias. At least 50 percent of patients with sick sinus syndrome develop alternating bradycardia and tachycardia, also known as tachy-brady syndrome. Sick sinus syndrome results from intrinsic causes, or may be exacerbated or mimicked by extrinsic factors. Intrinsic causes include degenerative fibrosis, ion channel dysfunction, and remodeling of the sinoatrial node. Extrinsic factors can be pharmacologic, metabolic, or autonomic. Signs and symptoms are often subtle early on and become more obvious as the disease progresses. They are commonly related to end-organ hypoperfusion. Cerebral hypoperfusion is most common, with syncope or near-fainting occurring in about one-half of patients. Diagnosis may be challenging, and is ultimately made by electrocardiographic identification of the arrhythmia in conjunction with the presence of symptoms. If electrocardiography does not yield a diagnosis, inpatient telemetry monitoring, outpatient Holter monitoring, event monitoring, or loop monitoring may be used. Electrophysiologic studies also may be used but are not routinely needed. Treatment of sick sinus syndrome includes removing extrinsic factors, when possible, and pacemaker placement. Pacemakers do not reduce mortality, but they can decrease symptoms and improve quality of life. PMID:23939447

  18. MDCT Findings of Sinus of Valsalva Aneurysms Involving Two Coronary Sinuses: Case Report

    International Nuclear Information System (INIS)

    A sinus of Valsalva aneurysm is relatively rare and usually involves a single sinus. We describe here the multidetector computed tomography features of a case of an unruptured sinus of Valsalva aneurysms that affected the left and noncoronary sinuses in a 51-year-old woman

  19. Evaluation of Cone Beam Computed Tomography in Diagnosis and Treatment Plan of Impacted Maxillary Canines Evaluation of Cone Beam Computed Tomography in Diagnosis and Treatment Plan of Impacted Maxillary Canines

    Directory of Open Access Journals (Sweden)

    Seyed Hossein Hoseini Zarch

    2013-06-01

    Full Text Available Introduction: Maxillary canines have important roles in facial appearance, development of arch, and functional occlusion. Radiographs are important in evaluating the location and nature of these anomalies. The purpose of this study was to evaluate two types of 2D and 3D imaging technique in diagnosis and treatment of maxillary impacted canines. Methods: Thirty eight patients (50 impacted canines were enrolled. An oral radiologist assessed all of patients’ panoramic radiographs and then cone beam computed tomography (CBCT to determine the presence of adjacent teeth root resorption, root dilacerations before dental extraction, dental rotation, and buccolingual localization ofimpacted canine crown and root contact with sinus and nasal cavity.Then using the patient’s radiographs the treatment plan of each impacted canine was determined by an orthodontist. Results: Differences between panoramic radiography and CBCT in diagnosis of root resorption and dental rotation were significant. There was an agreement between panoramic radiographs and CBCT in localization of impacted teeth crown. Only the treatment plans of 20% of impacted canines were different between panoramic radiographs and CBCT and treatment plan of 80% of impacted teeth was similar. Conclusion: These results showed that 2D and 3D images of impacted maxillary canines can produce different diagnoses and treatment plans.  

  20. T-Cell Lymphoma of Palate with Nose and Maxillary Sinus Involvement: A Case Report

    OpenAIRE

    Zohreh Dalirsani; Nooshin Mohtasham

    2010-01-01

    Oral cavity T-cell lymphoma occurs rarely. This case reportdescribes a patient with such a tumor. The case was a 75 yearsold man presented with a painless swelling on his hard palatemucosa. He had suffered from nose- bleeding and nasal obstruction.Pathology revealed the presence of a T-cell lymphomatumor in the palate. Though rare, the signs and symptomsof the case suggest that T-cell lymphoma should be consideredin the differential diagnosis of oral cavity lesions.

  1. Calvarial autogenous bone graft for maxillary ridge and sinus reconstruction for rehabilitation with dental implants

    DEFF Research Database (Denmark)

    Bastos, Alliny Souza; Spin-Neto, Rubens; Conte-Neto, Nicolau; Galina, Keidy; Boeck-Neto, Rodolfo Jorge; Marcantonio, Cláudio; Marcantonio, Elcio; Elcio Jr, Marcantonio

    2014-01-01

    Autogenous bone grafting is the gold-standard technique for bone augmentation procedures prior to implant placement. If the amount of available intraoral donor bone is insufficient, it is necessary to harvest bone graft from extraoral sites, such as calvaria. Although this technique is well established, only a few case reports show the histological analysis of the grafted bone at the moment of implant placement. This article reports the case of a 48-year-old female patient with a critical atroph...

  2. The role of computed tomography in the diagnosis and treatment of malignant tumors of the nasal cavity, paranasal sinuses and nasopharynx

    International Nuclear Information System (INIS)

    We studied the value of computed tomography (CT) in diagnosis and treatment of primary malignant tumors of the sinonasal cavities and nasopharynx, and reached the following conclusions. 1) In maxillary carcinomas, bone destruction is always seen on CT. When bone destruction is not apparent despite invasion to the adjacent site, malignant lymphoma or plasmacytoma is suggested. 2) In defining the tumor extent of maxillary SCC, CT is more reliable than maxillotomy, and is equal to maxillectomy. However, clouding of the sinus without bone destruction remains a problem, since this finding can be caused by either tumor invasion or obstructive sinusitis. 3) In maxillary and nasopharyngeal SCC, CT frequently reveals tumors to be more extensive than previously suspected following physical and conventional x-ray examinations. Therefore, the T-stages of these tumors are often upstaged to more advanced ones. 4) CT is of great help in identifying candidates for surgery in maxillary SCC, and in planning radiation therapy for nasopharyngeal and sinonasal tumors. Dose distribution curves displayed directly on the CT slices are becoming essential tools for radiation oncologists. After the introduction of CT, treatment results in cases of nasopharyngeal SCC have improved, probably due to better definition of the tumor volumes. 5) CT is also used for observing tumor response after therapy and for follow-up. In summary, CT is now indispensable in the management of malignant tumors of these sites. (author)

  3. Anatomia endoscópica do seio esfenoidal Endoscopic anatomy of the sphenoid sinus

    Directory of Open Access Journals (Sweden)

    Alexandre A. Murta

    2002-08-01

    Full Text Available Introdução: A importância da compreensão da anatomia interna do seio esfenoidal deve-se à sua peculiar localização no centro do crânio, com estruturas vizinhas de nobreza indiscutível, e por transparecer estas relações anatômicas em suas delgadas paredes internas. Forma de estudo: Anatômico. Material e método: No presente estudo foram dissecados endoscopicamente 52 seios esfenoidais, sendo suas saliências e depressões internas analisadas, correspondentes aos relevos internos produzidos pela artéria carótida interna, nervo óptico, nervo maxilar, e nervo vidiano. Resultado: Em 88,5% dos casos a artéria carótida interna apresentou-se saliente, e o nervo óptico o fez em 55,8%. O nervo vidiano e o nervo maxilar mostraram-se visíveis em 25% e 30,8% dos casos, respectivamente. Conclusão: Tais dados nos chamam a atenção para a rica e frágil anatomia interna do seio esfenoidal que, devido ao avanço dos métodos de cirurgia endoscópica, está progressivamente mais próxima e vulnerável a manobras e procedimentos cirúrgicos. Assim, sua compreensão torna-se essencial quando se trata de cirurgia endoscópica endonasal e seu horizonte de recursos técnicos.Introduction: The internal anatomy of the sphenoid sinus plays a role of great importance due to its peculiar placement in the center of the head, surrounded by important adjacent structures, which make themselves transparent in its internal walls. Study design: Anatomic. Material and method: In this study, 52 sphenoid sinus were endoscopically dissected, and the elevations and depressions presented on its internal walls, produced by the internal carotid artery and the optic, maxillary and vidian nerves, were analyzed. Results: In 88,5% of the cases, the internal carotid artery were projected into the sinus, while the optic nerve were in 55,8%. The vidian and maxillary nerves were salient in 25% and 30% respectively. Conclusion: These data point us to the rich end delicate internal anatomy of the sphenoid sinus, which is progressively closer and more vulnerable to surgical maneuvers, due to the advance of surgical skills, techniques and knowledge. Thus, the study and comprehension of the sphenoid sinus internal anatomy became essential, concerning the endoscopic sinus surgery and its huge field of technical resources.

  4. Anatomia endoscópica do seio esfenoidal / Endoscopic anatomy of the sphenoid sinus

    Scientific Electronic Library Online (English)

    Alexandre A., Murta; Christiano G., Carneiro; Alexandre, Felippu.

    2002-08-01

    Full Text Available Introdução: A importância da compreensão da anatomia interna do seio esfenoidal deve-se à sua peculiar localização no centro do crânio, com estruturas vizinhas de nobreza indiscutível, e por transparecer estas relações anatômicas em suas delgadas paredes internas. Forma de estudo: Anatômico. Materia [...] l e método: No presente estudo foram dissecados endoscopicamente 52 seios esfenoidais, sendo suas saliências e depressões internas analisadas, correspondentes aos relevos internos produzidos pela artéria carótida interna, nervo óptico, nervo maxilar, e nervo vidiano. Resultado: Em 88,5% dos casos a artéria carótida interna apresentou-se saliente, e o nervo óptico o fez em 55,8%. O nervo vidiano e o nervo maxilar mostraram-se visíveis em 25% e 30,8% dos casos, respectivamente. Conclusão: Tais dados nos chamam a atenção para a rica e frágil anatomia interna do seio esfenoidal que, devido ao avanço dos métodos de cirurgia endoscópica, está progressivamente mais próxima e vulnerável a manobras e procedimentos cirúrgicos. Assim, sua compreensão torna-se essencial quando se trata de cirurgia endoscópica endonasal e seu horizonte de recursos técnicos. Abstract in english Introduction: The internal anatomy of the sphenoid sinus plays a role of great importance due to its peculiar placement in the center of the head, surrounded by important adjacent structures, which make themselves transparent in its internal walls. Study design: Anatomic. Material and method: In thi [...] s study, 52 sphenoid sinus were endoscopically dissected, and the elevations and depressions presented on its internal walls, produced by the internal carotid artery and the optic, maxillary and vidian nerves, were analyzed. Results: In 88,5% of the cases, the internal carotid artery were projected into the sinus, while the optic nerve were in 55,8%. The vidian and maxillary nerves were salient in 25% and 30% respectively. Conclusion: These data point us to the rich end delicate internal anatomy of the sphenoid sinus, which is progressively closer and more vulnerable to surgical maneuvers, due to the advance of surgical skills, techniques and knowledge. Thus, the study and comprehension of the sphenoid sinus internal anatomy became essential, concerning the endoscopic sinus surgery and its huge field of technical resources.

  5. Osteoblastoma of the ethmoid sinus

    Energy Technology Data Exchange (ETDEWEB)

    Park, Yong-Koo [Kyung Hee University, Department of Pathology, School of Medicine, Seoul (Korea); Kyung Hee University Hospital, Department of Pathology, Seoul (Korea); Kim, Eui Jong [Kyung Hee University, Department of Diagnostic Radiology, School of Medicine, Seoul (Korea); Kim, Sung Wan [Kyung Hee University, Department of Otolaryngology, School of Medicine, Seoul (Korea)

    2007-05-15

    An osteoblastoma is a benign bone tumor that most often occurs in the vertebral column and the long bones of the extremities. Paranasal sinus involvement is very rare. We report an osteoblastoma of the ethmoid sinus in a 13-year-old boy who presented with exophthalmos. CT demonstrated an expansile, lesion of the right ethmoid sinus, which caused the orbital contents to be compressed and deviated to the right. A mixture of ground glass opacity and dense bone was present. The less dense portions of the lesion showed intense enhancement on MRI; a signal void was present on all sequences in the densely sclerotic areas. Curettage was performed. Histologically, the lesion was composed of proliferating osteoblasts along with small trabeculae of woven bone and rich vascular fibrous stroma. The literature concerning occurrence of osteoblastoma in this unusual location is reviewed and discussed. (orig.)

  6. Influence of platelet-rich plasma on a bioglass and autogenous bone in sinus augmentation. An explorative study.

    Science.gov (United States)

    Klongnoi, Boworn; Rupprecht, Stephan; Kessler, Peter; Thorwarth, Michael; Wiltfang, Joerg; Schlegel, Karl Andreas

    2006-06-01

    Platelet-rich plasma (PRP) has been introduced to the field of oral and maxillofacial surgery for a decade, but its beneficial effects on maxillary sinus augmentation remain unclear. The aim of this study was to evaluate the short- and long-term effects of PRP on osseointegration following single-stage sinus augmentation in a randomized prospective animal study. The maxillary premolars of 24 minipigs were extracted bilaterally and allowed to heal for 2 months. Consecutively all animals underwent bilateral sinus floor elevation using autogenous bone, Biogran as well as a combination of the materials with PRP. Three dental implants (Ankylos, Dentsply Co., Mannheim, Germany) were installed in each sinus simultaneously. Four animals were sacrificed at each period of observation (1, 2, 8 and 12 months). Microradiographic images of the specimens were made for quantitative evaluation of the bone-implant contact (BIC) and light microscopic images were made for qualitative analysis. An increment of the BIC during the observation time could be seen over the observation time in all groups. Autogenous bone exhibited a level of BIC from 25.1 +/- 9.96% at 1 month to 55.1 +/- 13.10% at 12 months; on adding PRP, the BIC ranged from 28.4 +/- 4.64% to 52.5 +/- 17.06%. Biogran with and without PRP led to BIC levels from 16.3 +/- 4.64% to 37.6 +/- 16.40% and 21.7 +/- 4.33% to 46.6 +/- 19.37%, respectively. The results of this study did not show a significantly positive effect of PRP on the BIC following sinus augmentation in both groups. PMID:16672027

  7. Foreign Body in Jugal Mucosa

    Science.gov (United States)

    Serrano, Thiago Luís Infanger; Pauna, Henrique Furlan; Hazboun, Igor Moreira; Dal Rio, Ana Cristina; Correa, Maria Elvira Pizzigatti; Nicola, Ester Maria Danielli

    2015-01-01

    Introduction?Foreign body in the oral cavity may be asymptomatic for long time and only sometimes it can lead to a typical granulomatous foreign body reaction. Some patients may complain of oral pain and present signs of inflammation with purulent discharge. A granuloma is a distinct, compact microscopic structure composed of epithelioid-shaped macrophages typically surrounded by a rim of lymphocytes and filled with fibroblasts and collagen. Nowadays, the increase of cosmetic invasive procedures such as injection of prosthetic materials in lips and cheeks may lead to unusual forms of inflammatory granulomas. Objectives?Describe an unusual presentation of a foreign body reaction in the buccal mucosa due to previous injection of cosmetic agent. Resumed Report?A 74-year-old woman was referred to the Department of Otorhinolaryngology, Head and Neck Surgery to investigate the presence of multiple painless, bilateral nodules in the buccal mucosa, with progressive growth observed during the previous 2 months. The histologic results showed a foreign body inflammatory reaction. Conclusion?Oral granulomatosis lesions represent a challenging diagnosis for clinicians and a biopsy may be necessary. Patients may feel ashamed to report previous aesthetic procedures, and the clinicians must have a proactive approach. PMID:26491486

  8. Rinossinusite nosocomial em unidade de terapia intensiva: estudo microbiológico / Nosocomial sinusitis in an intensive care unit: a microbiological study

    Scientific Electronic Library Online (English)

    Leonardo Lopes, Balsalobre Filho; Fernando Mirage Jardim, Vieira; Renato, Stefanini; Ricardo, Cavalcante; Rodrigo de Paula, Santos; Luis Carlos, Gregório.

    2011-02-01

    Full Text Available Rinossinusite Nosocomial é uma complicação frequente de pacientes tratados em UTI. É importante o diagnóstico e tratamento precoce para prevenir complicações graves como pneumonia, sepse, meningite e abscesso intracraniano. OBJETIVO: Identificar os agentes causadores de sinusite em UTI através do sw [...] ab nasal e da punção de seio maxilar, correlacionando seus resultados. MÉTODO: Pacientes atendidos nas unidades de terapia intensiva com diagnóstico tomográfico de sinusopatia maxilar uni ou bilateral foram submetidos ao swab nasal e punção do seio acometido com material enviado para cultura e antibiograma. RESULTADOS: O presente estudo avaliou 22 pacientes. Houve concordância entre o agente microbiano isolado no swab e na punção em 14 dos 22 casos (63%). A flora aeróbia gram negativa foi a mais encontrada com predomínio da Pseudomonas aeruginosa (29% nas punções), seguido de Proteus mirabillis (26%) e Acinetobacter baumanni (14%). Houve alto índice de resistência aos antibióticos usados. CONCLUSÃO: A punção direta do seio maxilar acometido em pacientes em UTI com sinusite parece ser o melhor método para identificar os agentes bacterianos e, através do seu antibiograma, direcionar a conduta terapêutica antimicrobiana. O swab mostrou ter pouco valor diagnóstico, com concordância de 63%, podendo ser reservado para casos onde a punção está contraindicada. Abstract in english Nosocomial sinusitis is a common complication of patients in ICUs. Its diagnosis is important, and early treatment is required to avoid serious complications such as pneumonia, sepsis, meningitis, and intracranial abscesses. AIM: To identify the germs causing sinusitis in ICUs by nasal swabs and max [...] illary sinus puncture, and to correlate these results. METHODS: ICU patients with a diagnosis (CT confirmed) of maxillary sinusitis underwent nasal swab and puncture of the sinus to collect material for culture and antibiogram. RESULTS: This study evaluated 22 patients. The microbial agent isolated in the swab correlated with the agent in the puncture in 14 of 22 cases (63%). Gram-negative bacteria were the most frequent, as follows: Pseudomonas aeruginosa (29% of punctures), following by Proteus mirabillis (26%) and Acinetobacter baumanni (14%). The resistance index in the antibiogram was high to antibiotics. CONCLUSION: Maxillary sinus puncture of ICU patients with sinusitis appears to be the best method for identifying bacteria; antibiograms demonstrate resistance to therapy. The swab has little diagnostic value; the correlation was 63%. It may be used when sinus puncture is contraindicated.

  9. Volumetric upper airway assessment in patients with transverse maxillary deficiency after surgically assisted rapid maxillary expansion.

    Science.gov (United States)

    Pereira-Filho, V A; Monnazzi, M S; Gabrielli, M A C; Spin-Neto, R; Watanabe, E R; Gimenez, C M M; Santos-Pinto, A; Gabrielli, M F R

    2014-05-01

    Transverse maxillary deficiency is commonly found in patients with sleep apnea and is also related to abnormal breathing patterns. Maxillary expansion procedures promote widening of the nasal floor and reduce the resistance to airflow, and have a positive influence on nasopharynx function. In order to evaluate volume changes in the upper airway, 15 adult patients with transverse maxillary deficiency underwent surgically assisted rapid maxillary expansion (RME) until a slight overcorrection of the crossbite was obtained. Cone beam computed tomography (CBCT) volumetric images were obtained at three predefined time points. The mean age of the patients was 30.2 (±7.4) years; nine were females and six were males. The area, volume, and the smallest transverse section area of the airway were assessed using Dolphin Imaging 3D software. Statistical comparisons were made of the changes between time periods. No statistically significant differences were found for volume or area. However a significant difference was found between the preoperative and immediate postoperative smallest transverse section area (P<0.05). Maxillary expansion, as an isolated procedure, does not result in a statistically significant improvement in the airway dimensions and results in an inferior relocation of the smallest transverse section area. PMID:24361243

  10. Radiotherapy of Carcinoma of Maxillary Antrum

    International Nuclear Information System (INIS)

    Seventy-nine patients with carcinoma of maxillary antrum treated at the department of therapeutic radiology, Kosin Medical Center, between June 1980 and December 1986 were analyzed retrospectively for survival rate and treatment failure. Forty-three patients were treated with radiotherapy alone and thirty-six patients were treated with combination of surgery and radiotherapy. The overall 5 year survival rate was 32%, patients that were treated with radiotherapy alone had a 5-year survival rate of 23%, and patients who were treated with combination of surgery and radiotherapy had a 5-year survival rate of 42%. 54 patients(68.4%) failed to be cured. Among these 54 patients, 37 patients(68.5%) had only locoregional failure, 16 patients(29.6%) had locoregional failure and distant metastases and 1 patient had only distant metastasis. From above study combination of surgery and radiotherapy might be a better treatment modality for carcinoma of the maxillary antrum

  11. Pediatricians and Challenges Around Diagnosis of Acute Bacterial Sinusitis

    Directory of Open Access Journals (Sweden)

    Alireza Nateghian

    2009-01-01

    Full Text Available Acute bacterial sinusitis is one of the most common problems in clinical setting for pediatricians. It is estimated that one out of 50 outpatient visits in a pediatric office can be attributed to acute bacterial sinusitis; 1-2% of acute viral upper respiratory tract infections in older children and young adults can also lead to acute bacterial sinusitis. However, this is a challenging diagnosis for several reasons:"n1. Many parents whose kids have had such a diagnosis in the past are persistent for its relapse and this might be one of the most important reasons for over diagnosis."n2. There is no specific clinical sign or symptom for acute bacterial sinusitis in children, the only reliable guide might be the persistence of purulent nasal discharge accompanied by inflammatory signs like cough (especially night time cough, sore throat, post-cough vomiting, fever and malaise. More specific symptoms like headache, facial pain are less prominent in kids in comparison with adults."n3. Post-nasal discharge is sometimes difficult to find in the physical examination, this might be due to an obstructed meatus or the intermittent nature of such a finding; its color and consistency is also quite variable, although pharyngeal erythema can be a helpful sign for the diagnosis of acute bacterial sinusitis and cobble stone appearance of the posterior pharyngeal wall is more suggestive of allergic rhinitis or sinusitis."n4. Although the paleness of the nasal mucosa and prominence of allergic signs and symptoms like frequent sneezing, positive allergy history and nasal or pharyngeal itching can be helpful, bacterial superimposing can not be ruled out easily in these settings. Allergic kids are prone to more prolong upper respiratory symptoms upon common cold and also real acute bacterial sinusitis as well."n5. Acute bacterial sinusitis needs to be treated for a relatively long period, at least 10 days antibiotic therapy is recommended for kids, and unnecessary prescription of antibiotics might lead to selection of resistant organisms in that patient. In addition to drug side effects, it might be difficult to treat the patient whenever real bacterial sinusitis occurs. In the era of growing antibiotic resistance, upper respiratory tract infections are one of the most important problems for which these drugs are being used."n6. Taking bacterial cultures from the nasal meatus is impractical in kids. In most instances, the nasal culture results have been considered unreliable in most studies. Other laboratory studies like CBC, ESR and CRP are also not totally sensitive or specific for the diagnosis of acute bacterial sinusitis in children."n7. Acute bacterial sinusitis on the other hand might lead to severe local or intracranial complications and sometimes to sepsis, so rapid diagnosis and on time initiation of treatment is very important, especially when an obstructed sinus cavity can behave as an abscess. In this setting, surgical intervention is sometimes necessary as well."nHere the necessity of a cheap, rapid and reliable imaging modality for ruling out or confirmation of the diagnosis of acute bacterial sinusitis is quite evident; unfortunately there are many controversial issues in this area as well. New references suggest CT scan as a more sensitive and reliable method for the evaluation of para nasal sinuses in comparison with plain radiography; however CT is not available in many settings and its performing needs to be done in a cooperative position; this means that it is not easy for kids, parents are usually reluctant to do that unless in the inpatient setting and charges are much more than the conventional radiological study."nFrom the clinical point of view, therefore, pediatricians are using plain radiographical studies in most settings and believe that if the clinical picture has been diagnosed correctly, it might be unnecessary to perform that. However, in equivocal cases, especially when there is a severe clinical picture and urgent need for treatment of the pati

  12. Carotico-cavernous sinus fistula

    OpenAIRE

    Gupta, A.K.; Jaimanti, Bakshi B.; Mann, S. B. S.

    2005-01-01

    We present a rare case of carotico-cavernous sinus fistula who presented with proptosis with gradual diminision of vision following a roadside accident. Contrast enhanced CT scan and angiography confiruned the diagnosis and it was managed by transfemoral embolisation of right ICCF.

  13. Radical surgery for pilonidal sinus.

    OpenAIRE

    Thomson, James P S; Lee, Joseph

    1983-01-01

    Pilonidal sinus disease in 72 patients was treated by radical excision and primary wound closure and the results compared with those other currently practised techniques. A number of factors have been examined in an attempt to identify a group of patients in whom the risk of delayed healing is high.

  14. Bascom's operation for pilonidal sinus.

    OpenAIRE

    Mosquera, D A; Quayle, J B

    1995-01-01

    During 1985 in England and Wales, 7000 patients were treated for pilonidal disease with an average hospital stay of 5 days. The aim of this paper is to report our early experience with Bascom's operation for pilonidal sinus--a procedure relatively untried in the UK.

  15. Management of maxillary alveolar process fractures

    Directory of Open Access Journals (Sweden)

    Shukhrat Boymuradov

    2011-04-01

    Full Text Available Incidence of maxillofacial traumas is reported steadily increasing, maxillary fractures being extremely severe. Maxillary alveolar process (AP and front teeth are traumatized more frequently than any other parts of the maxilla. Deprivation of teeth and AP post-traumatic flaw as well as loss of alveolar height not only create a cosmetic defect but also complicate subsequent prosthetics of the patients. The work was initiated to assess efficacy of “CollapAn L” in comparison with a combination of “Osteon”, an osteoplastic material, and “Colla Guide” resorbable membrane in prevention of AP post-traumatic flaws and deformities. 60 patients aged from 16 to 47 with the comminuted fractures of maxillary AP emergently hospitalized were examined and treated. The findings showed that Combination of “Osteon” and “Colla Guide” resorbable membrane is the one to increase efficacy of the treatment, facilitating preservation of and alveolar crest height and shape. In addition, preservation of bone tissue mineralization helps avoid risk of the bone wound inflammatory morbidity.

  16. Incidental findings in paranasal sinuses and mastoid cells. A cross-sectional magnetic resonance imaging (MRI) study in a pediatric radiology department

    Energy Technology Data Exchange (ETDEWEB)

    Kalle, T. von; Fabig-Moritz, C.; Winkler, P. [Olgahospital Klinikum, Stuttgart (Germany). Radiologie; Heumann, H. [Olgahospital Klinikum, Stuttgart (Germany). Paediatrische HNO-Heilkunde und Otologie

    2012-07-15

    Purpose: Misdiagnosis of 'sinusitis' is still frequent in children, although mucosal swelling in the paranasal sinuses of children has been reported as a common incidental finding. Recent radiological publications on the problem are rare. We prospectively evaluated the mucosal thickening in the paranasal sinuses and mastoid cells of children who underwent MRI of the head for reasons other than sinusitis or mastoiditis. Materials and Methods: 147 patients, 0.2 - 22.7 years, median 8.9. Axial and sagittal T2 TSE images were evaluated by two experienced pediatric radiologists. Categories for the degree of mucosal swelling were for the maxillary, frontal and sphenoid sinuses: no swelling, minor: < 5 mm, or major: {>=} 5 mm; for ethmoid cells and mastoid cells: not present, minor: {<=} 50 % of cells, or major: > 50 %. Results: 61 % of children had one or more salient findings in their paranasal sinuses or mastoid cells. 48 % had mucosal swelling in their paranasal cavities, 25 % in their mastoid cells. The prevalence was higher among children less than 10 years of age (60 % and 42 %) and among children with current upper respiratory tract infection (71 % and 35 %). There was no correlation to a history of headache, snoring, asthma and allergies, or to gender or place of residence. Conclusion: Mucosal swelling in paranasal sinuses and in mastoid cells is a frequent incidental finding in children. Even major mucosal swelling in a paranasal sinus is not necessarily a sign of infection. In radiological reports the terms 'sinusitis' and 'mastoiditis' should therefore be used with great caution. The initiation of treatment should be based on clinical symptoms and not on radiological abnormalities alone. (orig.)

  17. The paranasal sinusitis in the CT and MRI and in the CT/MR digital fusion images

    International Nuclear Information System (INIS)

    The aim of the study is to evaluate the CT and MR visualization of the sinusitis. The second focus is to investigate usefulness of digital fusion of these examinations. 28 patients with suspicion of the sinusitis underwent the CT and MR exams. Finally the CT/MR digital fusion of all the examinations, using the own program, was performed. Evaluation of the quality of imaging the bones, soft tissues and mucosa was applied in all the techniques. Both the modalities well depicted the soft and mucosal elements with a slight superiority of MR in imaging the discrete mucosal thickening. The small bones were better presented in CT. The fused images correctly depicted even the discrete mucosal changes on the background of small bony structures. CT better presented bone elements of sinuses; MR is slightly superior in imaging the mucosal al thickening. Their digital fusion unified the advantages of both. (author)

  18. Papilomatosis nasal-sinusal: diagnóstico endoscópico

    Directory of Open Access Journals (Sweden)

    Calogero Grillo

    2000-12-01

    Full Text Available Entre las diferentes neoformaciones benignas tanto de los senos nasales como paranasales, los papilomas invertidos pueden considerarse un caso clínico de particular interés por sus peculiaridades patogenéticas. Los papilomas invertidos son en verdad, tumores benignos con capacidades erosivas elevadas (consecuencias de la necrosis por compresión ósea, potencialidades degenerativas y una inclinación elevada a reaparecer de una forma más severa. Se requiere una objetividad endoscópica precisa debido a la especificidad de los síntomas mediante exploración (epistasis, obstrucción respiratoria, rinorrea mucosa purulenta con vistas a probar: 1. las características morfológicas macroscópicas, a menudo patognomónicas; 2. el origen, por lo general, de la pared lateral de la nariz; 3. la manifestación de los senos y 4. el posible origen multifocal. El empleo de técnicas endoscópicas combinadas con medios tanto flexibles como inflexibles, ha permitido un diagnóstico y un tratamiento de elevada calidad. El uso de fibras ópticas, ha permitido investigar todas las cavidades sinusales por la nariz y la nasofaringe, al superar los límites del diagnóstico tradicional. El endoscopio flexible permitió un estudio más completo de las cavidades nasales y permitió la posibilidad de tomar fácilmente biopsia con el mínimo de malestar para el paciente. El uso de la endoscopia rígida, ha permitido alcanzar una mejor calidad de la imagen con un alto nivel de resolución y brillantez, aun cuando la habilidad y la tolerabilidad limitadas han causado a menudo, especialmente en las pruebas preoperatorias, un examen incompleto. Pensamos que es correcto aseverar que si bien el diagnóstico por imagen (TC es el procedimiento seleccionado, la evolución tecnológica de las fibras ópticas (rígidas y flexibles ha cambiado el enfoque de diagnóstico de tales afecciones que requieren siempre una evaluación endoscópica bimodal completaAmong the different benign neoformations of the nasal and paranasal sinuses, the inverted papillomas may be considered as a clinical case of particular interest due to its pathogenetic peculiarities. Inverted papillomas are, in fact, benign tumors with elevated erosive capacities (as a consequence of necrosis by osteal compression, degenerative potentialities and a marked inclination to reappear in a more severe form. Accurate endoscopic objectivity is required because of the specificity of the symptoms by scanning (epistasis, respiratory obstruction, mucous purulent rhinorrea in order to prove: l. the macroscopic morphological characteristics, which are often pathognomonic; 2. the origin, generally, of the lateral wall of the nose; 3. the manifestation of the sinuses and 4. the possible multifocal origin. The use of combined endoscopic techniques with flexible and unflexible means has allowed to have a high quality diagnosis and treatment. The use of optic fibres has made possible to investigate all the sinusal cavities by the nose and nasopharynx, on exceeding the limits of the traditional diagnosis. The flexible endoscope allowed to conduct a more complete study of nasal cavities and gave the possiility to make a biopsy with the minimum of annoyance for the patient. The use of rigid endoscopy has permitted to get an image with a better quality and with a high level of resolution and brightness, even when the limited ability and tolerability has often caused , specially in the peoperative tests, an incomplete examination. We think it is correct to asseverate that though the imaging diagnosis (CT is the selected procedure, the technological evolution of the optic fibres (rigid and flexible has changed the diagnosis approach of such affections that always require a complete bimodal endoscopic evaluation

  19. Papilomatosis nasal-sinusal: diagnóstico endoscópico

    Scientific Electronic Library Online (English)

    Calogero, Grillo; Vittorio, Giardina; Alessandro, La Boria; Enza, Di Fazio; Simona, Ficarra; Ignazio, La Mantia.

    2000-12-01

    Full Text Available Entre las diferentes neoformaciones benignas tanto de los senos nasales como paranasales, los papilomas invertidos pueden considerarse un caso clínico de particular interés por sus peculiaridades patogenéticas. Los papilomas invertidos son en verdad, tumores benignos con capacidades erosivas elevada [...] s (consecuencias de la necrosis por compresión ósea), potencialidades degenerativas y una inclinación elevada a reaparecer de una forma más severa. Se requiere una objetividad endoscópica precisa debido a la especificidad de los síntomas mediante exploración (epistasis, obstrucción respiratoria, rinorrea mucosa purulenta) con vistas a probar: 1. las características morfológicas macroscópicas, a menudo patognomónicas; 2. el origen, por lo general, de la pared lateral de la nariz; 3. la manifestación de los senos y 4. el posible origen multifocal. El empleo de técnicas endoscópicas combinadas con medios tanto flexibles como inflexibles, ha permitido un diagnóstico y un tratamiento de elevada calidad. El uso de fibras ópticas, ha permitido investigar todas las cavidades sinusales por la nariz y la nasofaringe, al superar los límites del diagnóstico tradicional. El endoscopio flexible permitió un estudio más completo de las cavidades nasales y permitió la posibilidad de tomar fácilmente biopsia con el mínimo de malestar para el paciente. El uso de la endoscopia rígida, ha permitido alcanzar una mejor calidad de la imagen con un alto nivel de resolución y brillantez, aun cuando la habilidad y la tolerabilidad limitadas han causado a menudo, especialmente en las pruebas preoperatorias, un examen incompleto. Pensamos que es correcto aseverar que si bien el diagnóstico por imagen (TC) es el procedimiento seleccionado, la evolución tecnológica de las fibras ópticas (rígidas y flexibles) ha cambiado el enfoque de diagnóstico de tales afecciones que requieren siempre una evaluación endoscópica bimodal completa Abstract in english Among the different benign neoformations of the nasal and paranasal sinuses, the inverted papillomas may be considered as a clinical case of particular interest due to its pathogenetic peculiarities. Inverted papillomas are, in fact, benign tumors with elevated erosive capacities (as a consequence o [...] f necrosis by osteal compression), degenerative potentialities and a marked inclination to reappear in a more severe form. Accurate endoscopic objectivity is required because of the specificity of the symptoms by scanning (epistasis, respiratory obstruction, mucous purulent rhinorrea) in order to prove: l. the macroscopic morphological characteristics, which are often pathognomonic; 2. the origin, generally, of the lateral wall of the nose; 3. the manifestation of the sinuses and 4. the possible multifocal origin. The use of combined endoscopic techniques with flexible and unflexible means has allowed to have a high quality diagnosis and treatment. The use of optic fibres has made possible to investigate all the sinusal cavities by the nose and nasopharynx, on exceeding the limits of the traditional diagnosis. The flexible endoscope allowed to conduct a more complete study of nasal cavities and gave the possiility to make a biopsy with the minimum of annoyance for the patient. The use of rigid endoscopy has permitted to get an image with a better quality and with a high level of resolution and brightness, even when the limited ability and tolerability has often caused , specially in the peoperative tests, an incomplete examination. We think it is correct to asseverate that though the imaging diagnosis (CT) is the selected procedure, the technological evolution of the optic fibres (rigid and flexible) has changed the diagnosis approach of such affections that always require a complete bimodal endoscopic evaluation

  20. MRI feature of dural sinus arachnoid granulations

    International Nuclear Information System (INIS)

    Objective: To evaluate the MRI feature of dural sinus arachnoid granulations. Methods: All of the brain MRI studies in 2010 were retrospectively analyzed with emphasis on the distribution, size and signal characteristics of dural sinus arachnoid granulations. Results: Superior sagittal sinus was the most location followed by transverse sinus, straight sinus, and sigmoid sinus. The size ranged from 2 mm to 16 mm with the majority smaller than 8 mm in diameter. All of arachnoid granulations were hypointense on T1WI and FLAIR-weighted images slightly higher than cerebrospinal fluid, hyperintense on T2WI slightly lower than cerebrospinal fluid. Most of them did not enhance with contrast with the larger ones showing punctate or linear enhancement. Filling defects were seen on cerebral MRV. Conclusion: MRI characteristics of arachnoid granulations are reliable for distinguishing arachnoid granulations from other lesions of dural sinus. (authors)

  1. Visualization of normal pleural sinuses with AMBER

    International Nuclear Information System (INIS)

    This paper reports that ventral and dorsal pleural sinuses are frequently better appreciated with advanced modulated beam equalization radiography (AMBER) than with standard chest radiography. The visualization of the sinuses with both techniques was compared and their typical configuration studied. Four hundred patients without known chest disease were evaluated. Two groups of 200 patients were studied with either AMBER or standard chest radiography. Visualization was evaluated by three radiologists using a four-point scale. The shape of the sinus was traced if sufficiently visible. A significantly larger segment of the respective sinuses was seen with the AMBER technique. The dorsal sinus was significantly easier to trace than the ventral. Various sinus configurations were noted. AMBER improves the visibility of the pleural sinuses. Knowledge of their normal configuration is the precondition for correctly diagnosing lesions hitherto frequently overlooked

  2. Survival and success of maxillary canine autotransplantation: a retrospective investigation.

    OpenAIRE

    Patel, S.; Fanshawe, T; Bister, D; Cobourne, MT

    2011-01-01

    The aim of this study was to evaluate survival and success rates following autotransplantation of permanent maxillary canine teeth. Sixty-three cases of maxillary canine autotransplantation from 49 subjects (mean age at transplantation 21.8 years, range 13-42.1 years) undertaken between 1977 and 2003 were collected as part of an audit project of transplantation success. All maxillary canines had complete root development at the time of transplantation. The sample was divided into two groups, ...

  3. Endodontic treatment of a radiculous maxillary premolar: a case report.

    Science.gov (United States)

    Javidi, Maryam; Zarei, Mina; Vatanpour, Mehdi

    2008-03-01

    We report the diagnosis and successful clinical management of three patients with anatomical variation in the maxillary first premolars. Maxillary first premolars have highly variable root canal morphology, but the presence of three canals is rare. This article describes the diagnosis and clinical management of first maxillary premolars with three canals and three separate roots, with special reference to radiographic interpretation and access refinements. PMID:18403892

  4. Ecological and phylogenetic influences on maxillary dentition in snakes

    Directory of Open Access Journals (Sweden)

    Kate Jackson

    2010-12-01

    Full Text Available The maxillary dentition of snakes was used as a system with which to investigate the relative importance of the interacting forces of ecological selective pressures and phylogenetic constraints indetermining morphology. The maxillary morphology of three groups of snakes having different diets, with each group comprising two distinct lineages — boids and colubroids — was examined. Our results suggest that dietary selective pressures may be more significantthan phylogenetic history in shaping maxillary morphology.

  5. The significance of the pterygopalatine fossa angiography before endoscopic sinus surgery

    Directory of Open Access Journals (Sweden)

    Hong-yu XING

    2013-11-01

    Full Text Available Objective?To investigate the value of pterygopalatine fossa angiography in fresh cadaveric heads, so as to provide a useful guidance and an individualized operative procedure for endoscopic sinus surgery. Methods?Three fresh cadaveric heads were used in the present study. After injection with 10%, 5% iodine fluorine into carotid artery, 3D vascular structure of the pterygopalatine fossa was constructed. The posterior wall of the maxillary sinus was dissected by gently removing the fat tissue with sinus forceps. All anatomical structures, such as vascular, nerve and muscle structures were then exposed. The anatomical characteristics of vasculature in the pterygopalatine fossa and the imaging data were compared. Results?The pterygopalatine segment at the third portion of the MA was well shown in the imaging system. According to Morton and Khan morphologic classification of the third portion of the internal maxillary artery, the proportion of Y type, M type, and intermediate type was 33.3%, 16.7% and 50.0%, respectively. Using an endoscopic endonasal approach, the PPF was exposed through its anteromedial surface. The first visible structures would be the branches of the MA. It appeared that the anatomical land-markers of the pterygopalatine fossa area was well shown by both intranasal endoscopic view and imaging data. Conclusion?CTA is a useful technique for pterygopalatine fossa imaging before surgical dissection. The terminal segment of MA provides direct anatomical topography features of the PPF. This technique provides useful information for the individual surgery in this area. DOI: 10.11855/j.issn.0577-7402.2013.11.013

  6. Management of sphenoidal sinus lesions by septal-assisted approach: Surgical skills and advantages.

    Science.gov (United States)

    Hong, Hai-Yu; Li, Yan-Ni; Fan, Yun-Ping; Feng, Shao-Yan; Gao, Jie-Bing

    2015-08-01

    The aim of this study was to develop a less invasive trans-septal approach for the endoscopic management of sphenoid sinus lesions. We performed a septal-assisted surgical procedure for endoscopic sphenoidectomy in 38 patients with isolated or combined sphenoidal sinus lesions, including fungal balls, mucoceles, purulent cystic sphenoidal sinusitis, etc. The posterior portion of the nasal septum became flexible after removal of the vomer and the sphenoidal rostrum. The superior portion of the common meatus was expanded to accommodate the endoscope after the septum was repositioned contra-laterally. The lesions were individually managed through the enlarged ostiums while damage to the mucosa of the front sphenoidal wall was avoided. All the procedures were completed successfully without intraoperative complications, and the bony ostiums were identified easily and enlarged accurately. During the follow-up period of 16 weeks to 2 years, no re-atresia or restenosis was observed. The recurrence rate was 0. No postoperative complications were recorded. All the responses from the patients were satisfactory. It was concluded that endoscopic sphenoidectomy assisted by trans-septal approach is a feasible, safe, effective and minimally invasive approach for selected cases with unilateral or bilateral lesions in the sphenoid sinuses. PMID:26223927

  7. Treatment of recurrent carcinoma of the paranasal sinuses using concomitant infusion cis-platinum and radiation therapy

    International Nuclear Information System (INIS)

    Radiation with concomitant infusion chemotherapy has proved more effective in treating several epithelial malignancies than radiation alone. Hyperfractionated radiation was combined with concomitant infusion cis-platinum chemotherapy in an attempt to obtain still better control rates. This paper presents the early results of a pilot study using this combination in the treatment of advanced and recurrent carcinoma of the paranasal sinuses as well as a case that showed response of large fixed cervical nodes having metastasized from a previously treated carcinoma of the maxillary antrum

  8. Salvage rapid maxillary expansion for the relapse of maxillary transverse expansion after Le Fort I with parasagittal osteotomy

    Science.gov (United States)

    2015-01-01

    Maxillary transverse deficiency is one of the most common deformities among occlusal discrepancies. Typical surgical methods are segmental Le Fort I osteotomy and surgically-assisted rapid maxillary expansion (SARME). This patient underwent a parasagittal split with a Le Fort I osteotomy to correct transverse maxillary deficiency. During follow-up, early transverse relapse occurred and rapid maxillary expansion (RME) application with removal of the fixative plate on the constricted side was able to regain the dimension again. RME application may be appropriate salvage therapy for such a case. PMID:25922822

  9. MR findings of septic cavernous sinus thrombosis

    Energy Technology Data Exchange (ETDEWEB)

    Lee, Hyeong Lae; Lee, Nam Joon; Lee, Jung Hee; Pyo, Hyeon Soon; Eo, Geun; Kim, Kyo Nam; Kim, Young Soon; Kim, Jang Min [Kwang Myung Sung Ae Hospital, Kwang Myung (Korea, Republic of); Lee, Don Young [Korea University Anam Hospital, Seoul (Korea, Republic of)

    2000-08-01

    To evaluate the MR findings of septic thrombosis of the cavernous sinus. Eleven MR images of six patients with septic cavernous sinus thrombosis obtained over a five-year period and proven clinically or radiologically were retrospectively reviewed. The contour and enhancement pattern of the cavernous sinus, changes in the internal carotid artery, orbit, pituitary gland and sphenoid sinus, and intracranial abnormalities were analyzed and compared with the findings of follow-up studies. In all six patients, contrast study revealed asymmetrical enlargement of the ipsilateral cavernous sinus and multiple irregular filling defects within it. Narrowing of the cavernous portion of the ipsilateral internal carotid artery was noted in five patients, upward displacement of the ipsilateral internal carotid artery in four, ipsilateral proptosis with engorgement of the superior ophthalmic vein in two, pituitary enlargement in five, and inflammatory change in the sphenoid sinus in six. Associated intracranial abnormalities included edema and enhancement in the meninx, temporal lobe, or pons adjacent to the cavernous sinus in four patients, hydrocephalus in one, and cerebral infarction in one. Follow-up MR imaging indicated that the extent of asymmetrical enlargement of the cavernous sinus, filling defects within it, as seen on contrast study, and enlarged pituitary glands had all decreased, without significant interval change. MR imaging is useful in the diagnosis of septic cavernous sinus thrombosis. Asymmetrical enlargement of the cavernous sinus, multiple irregular filling defect within it, as seen on contrast study, and changes in the internal carotid artery are characteristic findings. (author)

  10. Intensity-modulated radiation therapy for malignancies of the nasal cavity and paranasal sinuses

    International Nuclear Information System (INIS)

    Purpose: To report the clinical outcome of patients treated with intensity-modulated radiation therapy (IMRT) for malignancies of the nasal cavity and paranasal sinuses. Methods and Materials: Between 1998 and 2004, 36 patients with malignancies of the sinonasal region were treated with IMRT. Thirty-two patients (89%) were treated in the postoperative setting after gross total resection. Treatment plans were designed to provide a dose of 70 Gy to 95% or more of the gross tumor volume (GTV) and 60 Gy to 95% or more of the clinical tumor volume (CTV) while sparing neighboring critical structures including the optic chiasm, optic nerves, eyes, and brainstem. The primary sites were: 13 ethmoid sinus, 10 maxillary sinus, 7 nasal cavity, and 6 other. Histology was: 12 squamous cell, 7 esthesioneuroblastoma, 5 adenoid cystic, 5 undifferentiated, 5 adenocarcinoma, and 2 other. Median follow-up was 51 months among surviving patients (range, 9-82 months). Results: The 2-year and 5-year estimates of local control were 62% and 58%, respectively. One patient developed isolated distant metastasis, and none developed isolated regional failure. The 5-year rates of disease-free and overall survival were 55% and 45%, respectively. The incidence of ocular toxicity was minimal with no patients reporting decreased vision. Late complications included xerophthalmia (1 patient), lacrimal stenosis (1 patient), and cataract (1 patient). Conclusion: Although IMRT for malignancies of the sinonasal region does not appear to lead to significant improvements in disease control, the low incidence of complications is encouraging

  11. FACTORS CONTRIBUTING FOR THE BEST OUTCOME OF FUNCTIONAL ENDOSCOPIC SINUS SURGERY

    Directory of Open Access Journals (Sweden)

    TS Sangeetha

    2014-10-01

    Full Text Available Objective: To study the factors contributing for the best outcome of functional endoscopic sinus surgery Design: Prospective case series Setting: Academic tertiary medical centre Patients: 100 cases with chronic sinonasal inflammatory diseases who underwent functional endoscopic sinus surgery were studied Main outcome measures: Subjective and objective endoscopic evaluation of postoperative improvement2 Results: Local anaesthesia is comfortable and cost effective for most (71% of the patients with minimal intraoperative bleeding. Intraoperative mucosal injury led to stenosed maxillary sinus ostia in 2% of the patients and postoperative nasal synechae in 13% patients. Co morbid Bronchial asthma (2% of recurrence and allergic risk factor (4% of recurrence are the major factors contributing for postoperative recurrence. Preoperative oral and local steroids for 15% of the patients with bilateral sinonasal polyposis helped intraoperatively to reduce the size of the polypi, better delineation of anatomy and reduced intraoperative bleeding. Postoperative nasal saline douching and Saline spray were found to be equally effective in reducing nasal crusts formation Conclusion: With best anatomic knowledge, cadaveric dissection training, preoperative medical management as required, customized mucosal preservation surgical technique and postoperative care, the best outcome of FESS can be achieved.

  12. Síndrome del seno silente, una causa infrecuente de enoftalmos / Sinus syndrome, an uncommon cause of enophthalmos

    Scientific Electronic Library Online (English)

    B.F., Sánchez-Dalmau; L., Pascual; X., Lao; J., Maiz.

    2008-02-01

    Full Text Available Caso clínico: Una paciente de 29 años de edad acudió para valoración de sensación subjetiva de asimetría ocular de meses de evolución. El examen oftalmológico apreció un enoftalmos de 3,5 mm y un leve desplazamiento inferior del globo. Una TAC (Tomografía Axial Computerizada) demostró un colapso del [...] seno maxilar, con adelgazamiento y abombamiento inferior del suelo de la orbita. Se confirmó el diagnóstico de síndrome del seno silente. Fue intervenida, practicándose una antrostomía endoscópica con franca mejoría clínica. Discusión: Se comentan las características clínicas del síndrome del seno silente, así como su diagnóstico, diagnóstico diferencial y tratamiento. Abstract in english Clinical case: A 29-year-old woman presented with a subjective sensation of ocular asymmetry from several months beforehand. Ophthalmological exam showed 3,5 mm right enophthalmos and light hypoglobus. CT (Computerized Tomography) scan showed a collapsed maxillar sinus, and a thinned inferior orbita [...] l wall. The diagnosis of silent sinus syndrome was made. An endoscopic maxillary antrostomy with uncinectomy was made with an excellent surgical outcome. Discussion: Clinical features of silent sinus syndrome are described, including diagnosis, differential diagnosis and treatment.

  13. Volumetric upper airway assessment in patients with transverse maxillary deficiency after surgically assisted rapid maxillary expansion

    DEFF Research Database (Denmark)

    Pereira-Filho, V A; Monnazzi, M S

    2013-01-01

    Transverse maxillary deficiency is commonly found in patients with sleep apnea and is also related to abnormal breathing patterns. Maxillary expansion procedures promote widening of the nasal floor and reduce the resistance to airflow, and have a positive influence on nasopharynx function. In order to evaluate volume changes in the upper airway, 15 adult patients with transverse maxillary deficiency underwent surgically assisted rapid maxillary expansion (RME) until a slight overcorrection of the crossbite was obtained. Cone beam computed tomography (CBCT) volumetric images were obtained at three predefined time points. The mean age of the patients was 30.2 (±7.4) years; nine were females and six were males. The area, volume, and the smallest transverse section area of the airway were assessed using Dolphin Imaging 3D software. Statistical comparisons were made of the changes between time periods. No statistically significant differences were found for volume or area. However a significant difference was found between the preoperative and immediate postoperative smallest transverse section area (P

  14. Microbiology of infected pilonidal sinuses.

    OpenAIRE

    Brook, I

    1989-01-01

    Aspirates of pus from infected pilonidal sinuses in 75 patients showed bacterial growth. Anaerobic bacteria only were recovered in 58 (77%) specimens, aerobic bacteria only in three (4%), and mixed aerobic and anaerobic bacteria in 14 (19%). Two hundred and nine isolates were recovered: 147 anaerobes (2.0 isolates a specimen) and 62 aerobes (0.8 a specimen). The predominant anaerobes were Bacteroides sp (81 isolates, including 29 Bacteroides fragilis group) and 51 anaerobic cocci. The predomi...

  15. Axillary pilonidal sinus: A case report

    Directory of Open Access Journals (Sweden)

    Ilker Sengul

    2009-11-01

    Full Text Available Context: Pilonidal sinus is a disease which is very common, especially in men and usually located in sacrococcygeal area. However, the disease can be also seen in rare localizations such as umblicus, forehead, scalp, clitoris, interdigital area and axilla. In the etiology of pilonidal sinus, acquired theory is accepted by most of surgeons instead of the congenital one. Case report: In the present study, we purposed to report our case of hirsute Turkish women aged 25 having axillary pilonidal sinus. After application of total surgical excision with eliptical skin incision, histopathological evaluations confirmed the prediagnosis of axillary pilonidal sinus. The patient was lost to follow-up and neither recurrens nor distance metastasis has been detected during 36 months. Conclusions: In our opinion; surgical therapy of axillary pilonidal sinus, allows to complete resection in addition to absolute histopathological diagnoses and it may be an appropriate choice of treatment especially for the disease having one or two sinuses.

  16. Management of an impacted and transposed maxillary canine

    Directory of Open Access Journals (Sweden)

    Deepti A

    2010-03-01

    Full Text Available Maxillary canine-lateral incisor transposition is a relatively rare anomaly, with both dental and facial esthetic implications. This is a case report of a maxillary canine-lateral incisor transposition that was successfully treated by surgical-orthodontic treatment followed by esthetic reshaping of the involved teeth.

  17. Maxillary osteosarcoma in a beef suckler cow

    Directory of Open Access Journals (Sweden)

    Prins Diether G J

    2012-07-01

    Full Text Available Abstract A ten-year-old beef suckler cow was referred to the Scottish Centre for Production Animal Health & Food Safety of the University of Glasgow, because of facial swelling in the region of the right maxilla. The facial swelling was first noticed three months earlier and was caused by a slow growing oral mass which contained displaced, loosely embedded teeth. The radiographic, laboratory and clinicopathological findings are described. Necropsy, gross pathology and histological findings confirmed the mass as a maxillary osteosarcoma.

  18. Benign mandibular and maxillary lesions in children

    International Nuclear Information System (INIS)

    The CT criteria for classifying fibrous mandibular and maxillary lesions in adults as benign or malignant are well recognized: irregular soft-tissue margins and bone destruction. This paper reviews the charts of 10 pediatric patients in order to evaluate these criteria in children. The authors evaluated these masses by CT and/or MR imaging based solely on well-recognized and published criteria. Ten patients from three institutions were studied by CT and/or MR imaging. They ranged in age from 4 mo to 18 y. The histologic diagnoses were ameloblastoma (n = 3), hemangioma (n = 2), lymphangioma, desmoplastic fibroma, hemangiopericytoma, neurofibroma, and juvenile angiofibroma

  19. Solitary median maxillary central incisor (SMMCI) syndrome

    OpenAIRE

    Hall Roger K

    2006-01-01

    Abstract Solitary median maxillary central incisor syndrome (SMMCI) is a complex disorder consisting of multiple, mainly midline defects of development resulting from unknown factor(s) operating in utero about the 35th–38th day(s) from conception. It is estimated to occur in 1:50,000 live births. Aetiology is uncertain. Missense mutation in the SHH gene (I111F) at 7q36 may be associated with SMMCI. The SMMCI tooth differs from the normal central incisor, in that the crown form is symmetric; i...

  20. Differential response to carotid sinus pressure during sinus rhythm and atrial fibrillation.

    OpenAIRE

    Hellestrand, K J; Nathan, A. W.; Camm, A.J.

    1982-01-01

    In a patient who presented with syncope and palpitation left carotid sinus massage resulted in prolonged ventricular asystole during atrial fibrillation. In the same patient left carotid sinus stimulation during sinus rhythm produced no change in sinus rate and only slight PR interval prolongation. This very different response may be the result of factors which are relevant only during atrial fibrillation such as an increase in the atrial depolarisation frequency and a prolongation of the dur...

  1. Urachal cyst associated with a suprapubic sinus.

    Science.gov (United States)

    Nirasawa, Y; Ito, Y; Tanaka, H; Seki, N

    1999-01-01

    Urachal anomalies are frequent and may exhibit many anatomical variations. We report a case of a urachal cyst that had a sinus tract extending to the lower abdomen just above the pubic symphysis. Histologic examination of the specimens showed a squamous-epithelium-lined sinus tract and a columnar-epithelium-lined cyst, which suggested a developmental disorder. This may be an extremely rare case where the urachal cyst opened into the suprapubic sinus. PMID:10370044

  2. Rheoreceptors in the carotid sinus of dog.

    OpenAIRE

    Hajduczok, G; Chapleau, M W; Abboud, F M

    1988-01-01

    The arterial baroreceptors are known to be sensitive to changes in pressure but there are no known sensors in the cardiovascular system for changes in flow. We tested the hypothesis that changes in flow at constant pressure alter carotid sinus multi-unit nerve activity. In anesthetized dogs with vascularly isolated carotid sinuses, increases in flow at constant pressure resulted in increases in carotid sinus nerve activity in relation to the increase in flow. The increased activity during flo...

  3. Congenital Prepubic Sinus Accompanied by Prevesical Abscess

    OpenAIRE

    Kobayashi, Hideki; Nomura, Teruhisa; Haneda, Yaburu; Sawada, Norifumi; Araki, Isao; Takeda, Masayuki

    2015-01-01

    Congenital prepubic sinus is an extremely rare anomaly. The etiology is uncertain and the anatomical features often differ from each other. We report a 22-year-old woman with a congenital prepubic sinus accompanied by a prevesical abscess. She was admitted to our hospital with high-grade fever and low abdominal pain. Computed tomography revealed a prevesical abscess. After treatment of the prevesical abscess, we completely excised the congenital prepubic sinus. To our knowledge, this is the f...

  4. Isolated sphenoid sinus lesion: A diagnostic dilemma

    OpenAIRE

    Alazzawi, Sarmad; Shahrizal, Tengku; Prepageran, Narayanan; Pailoor, Jayalakshmi

    2014-01-01

    Isolated sphenoid sinus lesions are an uncommon entity and present with non-specific symptoms. In this case report, the patient presented with a history of headaches for a duration of one month without sinonasal symptoms. A computed tomography scan showed a soft tissue mass occupying the sphenoid sinus. An endoscopic biopsy revealed fungal infection. Endoscopic wide sphenoidotomy with excision of the sphenoid sinus lesion was then performed however, the microbiological examination post-surger...

  5. Nasoendoscopic treatment of the sphenoid sinus mucoceles

    OpenAIRE

    Silva, Fabrício Boechat do Carmo; Pereira, José Carlos Oliveira; Lourenço Filho, Rodolfo Caldas; Tinoco, Paulo

    2009-01-01

    Introduction: Mucoceles is a slow growth benign lesion, composed of mucous or purulent material, may be multiple and cause osseous erosion. The sphenoid sinus mucoceles are uncommon and correspond to 1% of the cases; they are more frequent in the frontal and ethmoidal sinuses respectively. Objective: To report one case of sphenoid sinus mucoceles that occurred with neurological symptoms and was submitted to surgical treatment through nasal endoscopy. Case Report: 80-year-old female patient wi...

  6. Haziness in X-Ray Paranasal Sinus Water's View in Sinusitis: A Fact or Fiction.

    Science.gov (United States)

    Gujrathi, Aatish; Wakode, P T

    2013-08-01

    It is a clinical dilemma whether patients having no symptoms of sinusitis but sinus haziness in X-ray should be considered as sinusitis or not and patients clinically having sinusitis and do not have radiological evidence should be considered as case of sinusitis or not. This study is an attempt to discuss this issue in details. To study diagnostic efficacy of conventional X-ray para nasal sinus water's view in sinusitis. To study the proportion of asymptomatic individuals showing haziness in conventional X-ray para nasal sinus water's view. Sensitivity and specificity of sinus X-ray in combination (conventional + digital) is 95 and 44%, respectively. Proportion of asymptomatic individuals showing haziness in conventional X-ray and digital X-ray paranasal sinus water's view are 52.4 and 75%, respectively. X-ray paranasal sinus water's view undoubtedly yields valuable information regarding sinus pathology. However it should not be accepted as a diagnosis in itself, but considered in the light of patient's history and clinical findings. PMID:24427654

  7. Congenital midline sinus of the upper lip

    OpenAIRE

    Fok, Denise; Kua, Ee Hsiang Jonah; Por, Yong Chen

    2015-01-01

    A congenital lip sinus is a rare condition that has been reported to occur in both the upper and lower lips, either in isolation or in association with congenital deformities such as a cleft lip and palate in Van der Woude syndrome. The prevalence of lower lip sinuses has been estimated to be about 0.00001% of the white population. Upper lip sinuses are even more uncommon. To date, there have been several case reports of upper lip sinuses and fistulas, but no similar cases have been described...

  8. MR findings of cerebral venous sinus thrombosis

    International Nuclear Information System (INIS)

    To describe MR findings of cerebral venous sinus thrombosis. We reviewed 11 MR images of six patients with cerebral venous sinus thrombosis. The MR images were retrospectively analyzed in terms of location and signal intensity of the thrombi, parenchymal lesions such as hemorrhage and edema, and changes in follow up study obtained in 4 patients. The thrombus in venous sinus was visualized on MRI in all six patients. The most frequently involved sites were superior sagittal sinus(n=4) and left transverse sinus(n=4). Signal intensity of the thrombus was isointense or hyperintense on both T1- and T2-weighted images with loss of normal signal void of the sinus on all sequences in all patients. Parenchymal lesion was patients in five of six cases, manifested as local hemorrhage in three and edema in three cases(one case overlapped). Local edema seen in three patients was completely resolved on follow up study of seven to 29 days intervals. It is concluded that iso- or high signal intensity with loss of signal void in venous sinus is virtually diagnostic of venous sinus thrombosis. If there are local parenchymal lesions such as hemorrhage and/or edema of unknown causes, cerebral venous sinus thrombosis should be included in differential diagnosis

  9. Olfactory sensations produced by high-energy photon irradiation of the olfactory receptor mucosa in humans

    International Nuclear Information System (INIS)

    During irradiation of volumes that incorporate the olfactory system, a proportion of patients have complained of a pungent smell. A retrospective study was carried out to determine the prevalence of this side-effect. A questionnaire was sent to 40 patients whose treatment volumes included the olfactory region and also to a control group treated away from this region. The irradiated tumor volumes included the frontal lobe, whole brain, nasopharynx, pituitary fossa, and maxillary antrum. Of the 25 patients who replied, 60% experienced odorous symptoms during irradiation. They described the odor as unpleasant and consistent with ozone. Stimulation of olfactory receptors is considered to be caused by the radiochemical formation of ozone and free radicals in the mucus overlying the olfactory mucosa

  10. Incidental paranasal sinuses abnormalities in pediatric patients using computed tomography of the head and orbits; Alteracoes incidentais dos seios da face na tomografia computadorizada do cranio e orbitas em criancas

    Energy Technology Data Exchange (ETDEWEB)

    Araujo Neto, Severino Aires de [Universidade Estadual de Campinas, SP (Brazil). Centro de Assistencia Integral a Saude da Mulher (CAISM)]. E-mail: severinoaires@hotmail.com; Souza, Antonio Soares [Faculdade de Medicina de Sao Jose do Rio Preto (FAMERP), SP (Brazil). Hospital de Base. Servico de Radiologia; Pereira, Ines Minniti Rodrigues [Universidade Estadual de Campinas, SP (Brazil). Faculdade de Ciencias Medicas. Dept. de Radiologia; Baracat, Emilio Carlos Elias [Universidade Estadual de Campinas, SP (Brazil). Faculdade de Ciencias Medicas. Dept. de Pediatria

    2005-07-15

    Objective: To evaluate the prevalence and appearance of incidental paranasal sinuses abnormalities in children with no clinical evidence of rhino sinusitis using CT scans. Materials and methods: CT scans of the head or orbits of children between 0 and 18 years of age performed due to problems not related to rhino sinusitis were studied. Results: Sixty-four children were included (mean age 5.7 years; standard deviation = 3.9). Incidental sinuses abnormalities were found in 46 cases (72%). In most cases the abnormalities were mild (25/46) and mucosal thickening was the most common finding. Complete opacification and fluid levels occurred in 12 children. More than one cavity was affected in 33 patients and abnormalities were most frequently seen in maxillary sinuses, followed by ethmoid sinuses. Bilateral and symmetric findings were common. The prevalence and intensity of abnormalities were higher in children below three years of age. Conclusion: Incidental abnormalities are highly prevalent and tend to be mild in children without symptoms of rhino sinusitis. The most prevalent abnormality was mucosal thickening. Moderate and severe abnormalities occur in children below three years of age. (author)

  11. Three-dimensional analysis of the distal movement of maxillary 1st molars in patients fitted with mini-implant-aided trans-palatal arches

    Science.gov (United States)

    Miresmaeili, Amirfarhang; Sajedi, Ahmad; Moghimbeigi, Abbas

    2015-01-01

    Objective The aim of this study was to investigate three-dimensional molar displacement after distalization via miniscrews and a horizontal modification of the trans-palatal-arch (TPA). Methods The subjects in this clinical trial were 26 Class II patients. After the preparation of a complete set of diagnostic records, miniscrews were inserted between the maxillary 2nd premolar and 1st molar on the palatal side. Elastic modules connected to the TPA exerting an average force of 150-200 g/side parallel to the occlusal plane were applied. Cone-beam computed tomography was utilized to evaluate the position of the miniscrews relative to the adjacent teeth and maxillary sinus, and the direction of force relative to molar furcation. The distances from the central point of the incisive papilla to the mesiopalatal cusps of the 1st maxillary molars and the distances between the mesiopalatal cusps of the left and right molars were measured to evaluate displacement of the maxillary molars on the horizontal plane. Interocclusal space was used to evaluate vertical changes. Results Mean maxillary 1st molar distalization was 2.3 ± 1.1 mm, at a rate of 0.4 ± 0.2 mm/month, and rotation was not significant. Intermolar width increased by 2.9 ± 1.8 mm. Molars were intruded relative to the neighboring teeth, from 0.1 to 0.8 mm. Conclusions Distalization of molars was possible without extrusion, using the appliance investigated. The intrusive component of force reduced the rate of distal movement. PMID:26445718

  12. Expression and distribution of epithelial sodium channel in nasal polyp and nasal mucosa.

    Science.gov (United States)

    Jiang, Yiming; Xu, Ji; Chen, Yanqing; Shi, Jiali; Zhang, Chun; Li, Jiping

    2015-11-01

    To evaluate the expression and location of epithelial sodium channels (ENaCs) in human nasal polyp and normal nasal mucosa, and to characterize the relevance of ENaCs to the development of NPs. Nasal polyp tissue from 17 patients and nasal mucosa from ten patients were obtained through endoscopic sinus surgery. The mRNA concentrations of ENaC-?, ?, and ? were detected by real-time polymerase chain reaction. The expression of ENaC-? was detected using western blot and immunofluorescence techniques. The distribution of ENaC-? in mucosal tissue was observed using a laser scanning confocal microscope. The transcriptional expression of three subunits of ENaC was in the following order: ? > ? > ?, in both groups. The transcriptional expression of ?, ?, and ? subunits of ENaC was elevated in nasal polyp compared to nasal mucosa (p staining indicated that ENaC-? protein was distributed in the epithelial cell apical membrane. The expression of ENaC is upregulated in human nasal polyp, which might in turn facilitate the formation and development of nasal polyp. PMID:25559464

  13. Laser Treatment of Oral Mucosa Tattoo

    OpenAIRE

    Gojkov-Vukelic, Mirjana; Hadzic, Sanja; Pasic, Enes

    2011-01-01

    The most common oral solitary pigmented lesion is the dental amalgam tattoo. It occurs as a result of colouring of the tissue by alien pigment which was administered intra or subepidermaly either intentionally or accidentally. The most common material used for the colouring of the oral mucosa is amalgam from amalgam fillings and metal particles from prosthetic restorations which are absorbed accidentally. The oral mucosa tattoos are most often found in the area of the marginal gingiva or the ...

  14. Anatomical Variations of Neurovascular Structures Adjacent Sphenoid Sinus by using CT Scan

    Directory of Open Access Journals (Sweden)

    M. Davoodi

    2009-01-01

    Full Text Available The aim of this research was to study of the relationship between anatomical variations of neurovascular structures adjacent sphenoid sinus with sex and position of appearance by using CT scan. In this retrospective study paranasal