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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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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.

André Coura Perez

2012-12-01

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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)

Full Text Available SciELO Brazil | Language: Portuguese Abstract in portuguese 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.

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.

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Endoscopic sinus surgery for maxillary sinus mucoceles  

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Full Text Available Abstract Background Maxillary sinus mucoceles are relatively rare among all paranasal sinus mucoceles. With the introduction of endoscopic sinus surgical techniques, rhinologic surgeons prefer transnasal endoscopic management of sinus mucoceles. The aim of this study is to describe the clinical presentation of maxillary sinus mucoceles and to establish the efficacy of endoscopic management of sinus mucoceles. Methods Between 2003 and 2005, 14 patients underwent endoscopic sinus surgery for maxillary sinus mucocele. The presenting sign and symptoms, radiological findings, surgical management and need for revision surgery were reviewed. Results There were eight males and six females with an age range of 14 to 65. Ten patients complained of nasal obstruction, five of nasal drainage, five of cheek pressure or pain and one of proptosis of the eye and cheek swelling. The maxillary sinus and ipsilateral ethmoid sinus involvement on computed tomographic studies was seen in 4 patients. Four patients had history of endoscopic ethmoidectomy surgery for ethmoid sinusitis and one had Caldwell-Luc operation in the past. Ethmoidectomy with middle meatal antrostomy and marsupialization of the mucocele was performed in all patients. Postoperative follow-up ranged between 8 to 48 months. All patients had a patent middle meatal antrostomy and healthy maxillary sinus mucosa. No patients need revision surgery. Conclusion The most common causes of mucoceles are chronic infection, allergic sinonasal disease, trauma and previous surgery. In 64% of the patients of our study cause remains uncertain. Endoscopic sinus surgery is an effective treatment for maxillary sinus mucoceles with a favorable long-term outcome.

Cagici Alper

2006-09-01

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Bilateral maxillary sinus aplasia  

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Bilateral maxillary sinus aplasia is an extremely rare congenital anomaly. Only a few cases have been reported in the literature. We present a 24- year-old woman with bilateral maxillary sinus aplasia associated with the bilateral absence
of the uncinate process and infundibular passage on CT images.
KEY WORDS: Maxillary sinus, aplasia, computed tomography.

Seied Mehdi Sonbolestan; Seied Mohammad Javad Marashi; Hamed Abasi

2007-01-01

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Bilateral maxillary sinus aplasia  

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Full Text Available

Bilateral maxillary sinus aplasia is an extremely rare congenital anomaly. Only a few cases have been reported in the literature. We present a 24- year-old woman with bilateral maxillary sinus aplasia associated with the bilateral absence
of the uncinate process and infundibular passage on CT images.
KEY WORDS: Maxillary sinus, aplasia, computed tomography.

Seied Mehdi Sonbolestan

2007-07-01

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Endoscopic sinus surgery for maxillary sinus mucoceles  

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Abstract Background Maxillary sinus mucoceles are relatively rare among all paranasal sinus mucoceles. With the introduction of endoscopic sinus surgical techniques, rhinologic surgeons prefer transnasal endoscopic management of sinus mucoceles. The aim of this study is to describe the clinical presentation of maxillary sinus mucoceles and to establish the efficacy of endoscopic management of sinus mucoceles. Methods Between 2003 and 2005, 14 patients underwent ...

Caylakli Fatma; Yavuz Haluk; Cagici Alper; Ozluoglu Levent

2006-01-01

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Implants in maxillary sinus  

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Augmentation of the floor of the maxillary sinus is an extremely important technique for posterior site development in the maxilla prior to implant placement. A number of techniques have been suggested and used in the past to deal with membrane perforations such as suturing the membrane, application of fibrin sealants oxidized regenerated cellulose and collagen membranes. The most important aspect of sinus grafting is the integrity of the sinus membrane solely to confine the graft. If membran...

Gandhi, Yazad R.; Singh, Mayank; Singh, Nimisha; Hariram

2012-01-01

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Implants in maxillary sinus.  

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Augmentation of the floor of the maxillary sinus is an extremely important technique for posterior site development in the maxilla prior to implant placement. A number of techniques have been suggested and used in the past to deal with membrane perforations such as suturing the membrane, application of fibrin sealants oxidized regenerated cellulose and collagen membranes. The most important aspect of sinus grafting is the integrity of the sinus membrane solely to confine the graft. If membrane tears are not taken care of, graft material can extravasate into the antrum and block the ostium. The fast-resorbing membranes are not good enough to form bone as their integrity is lost before woven bone forms. The novel technique demonstrates the use of a slow-resorbing membrane not only for perforations, but even in circumstances where the sinus is devoid of a membrane, thus bypassing the waiting period for schnederian membrane regeneration prior to grafting. PMID:23833502

Gandhi, Yazad R; Singh, Mayank; Singh, Nimisha; Hariram

2012-07-01

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Mucopyocele of the maxillary sinus  

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Mucoceles are defined as chronic, cystic lesions in the paranasal sinuses. When the mucocele content becomes infected, the lesion is defined as mucopyocele. Most mucoceles are located in the frontal and anterior ethmoid sinuses and normally they involve the frontal-ethmoid complex, expanding to the superior-medial region of the orbit, leading to ocular disorders; maxillary sinus presentation is rare. In the present article, the authors described a rare case of mucopyocele in the maxillary sinus.

Kshar, Avinash; Patil, Abhijeet; Umarji, Hemant; Kadam, Sonali

2014-01-01

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Mucopyocele of the maxillary sinus.  

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Mucoceles are defined as chronic, cystic lesions in the paranasal sinuses. When the mucocele content becomes infected, the lesion is defined as mucopyocele. Most mucoceles are located in the frontal and anterior ethmoid sinuses and normally they involve the frontal-ethmoid complex, expanding to the superior-medial region of the orbit, leading to ocular disorders; maxillary sinus presentation is rare. In the present article, the authors described a rare case of mucopyocele in the maxillary sinus. PMID:24688571

Kshar, Avinash; Patil, Abhijeet; Umarji, Hemant; Kadam, Sonali

2014-01-01

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Large pneumocele of the right maxillary sinus  

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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.

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

2013-10-01

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Ectopic third molar in the maxillary sinus  

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Ectopic eruption of teeth into a region other than the oral cavity is rare although there have been reports of teeth in the nasal septum, mandibular condyle, coronoid process, palate, chin and maxillary sinus. Occasionally, a tooth may erupt in the maxillary sinus and present with local sinonasal symptoms attributed to chronic sinusitis. We present a case of an ectopic maxillary third molar tooth that caused chronic purulent sinusitis in relation to the right maxillary sinus.

Mohan, Shishir; Kankariya, Hasti; Harjani, Bhupendra; Sharma, Harendra

2011-01-01

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Paraganglioma of the maxillary sinus.  

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Primary paragangliomas of the paranasal sinuses are very rare conditions with only few cases described in the literature. Paragangliomas are locally aggressive, often recur and can metastasize. Usually, open surgery is used to resect such tumors from the sinonasal tract. Here, a case of a large paraganglioma of the left maxillary sinus and nasal cavity, which was successfully removed using the Onyx® embolic agent two days prior to minimally invasive image guided endoscopic sinus surgery, is reported. This case demonstrates that large vascular tumors of the sinonasal tract can be successfully managed by endoscopic endonasal sinus surgery. The patient has no evidence of recurrence after 12 months of follow-up. PMID:23265579

Kisser, Ulrich; Braun, Thomas; Mayr, Doris; Leunig, Andreas

2013-10-01

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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)

2010-01-01

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MAXILLARY SINUS ANTROSTOMY PITFALLS  

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Full Text Available Endoscopic sinus surgery which is the commonly performed nasal surgery has its own problems if not performed properly. Success of maxillay sinus antrostomy depends on including the natural ostium to the antrostomy. For this to happen the natural ostium should be identified during the surgical procedure. Common cause of failure in endoscopic sinus surgery is the failure to address the uncinate process. In all cases it should be removed completely before proceeding further.

Balasubramanian Thiagarajan

2012-01-01

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Mucormycosis of maxillary sinus  

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Full Text Available Mucormycosis is a fungal infection commonly affecting structures in the head and neck, such as air sinuses orbits and the brain. Common predisposing factors include diabetes and immunosuppression. One such case of mucormycosis associated with diabetes mellitus reported to Subharati Dental College, Meerut.

Aggarwal Pooja

2007-01-01

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Maxillary sinus textiloma: a case report  

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Full Text Available Abstract Introduction Textilomas have been reported in many locations. We report the first case of textiloma located in the maxillary sinus that mimicked a sinus cyst recurrence on computed tomography images. Case presentation A 60-year-old Caucasian man was referred for persistent infection of the right maxillary sinus. A maxillary sinus benign cyst had been removed three months before. Computed tomography showed a sinus opacity evoking a cyst recurrence. A new operation was planned to remove the cyst by a Caldwell-Luc approach. After excision of very thick fibrous tissue, a compress was discovered in the maxillary sinus. The patient did not present with any sinus infection after the operation. Conclusion The surgeon should always take into account the possibility of textilomas in a patient with a history of sinus surgery.

Pons Yoann

2010-08-01

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A Case of Tuberculosis of Maxillary Sinus  

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Full Text Available Tuberculosis of the maxillary sinus is rare. Although involvement of long bones and vertebral column is common, its quite uncommon in flat bones. We describe here a case of tuberculosis of the maxillary sinus, and discuss the clinical features and its management.

Ashfak R. Kakeri

2008-12-01

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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%).

1971-11-01

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Maxillary sinus atelectasis report of two cases  

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Maxillary sinus atelectasis is a rare and relatively unknown disease. Most patients present with non-sinonasel complaints. Negative intracavitary pressure due to ostial obstruction is suggested as the most probable etiology. Two patients with sinus atelectasis are presented in this paper: Case 1 presented with enophthalmus and maxillary sinus opacity and atelectasis in imaging. Endoscopic uncinectomy and midle antrostomy was done for this patient. Case 2 presented with mid-facial deformity an...

Sadeghi M; Sadrhosseini M; Ghorbani J

2002-01-01

 
 
 
 
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Seromucous maxillary sinusitis (SMMS): a clinicophysiological approach.  

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Chronic sinusitis, especially maxillary sinusitis is a common disorder in humans. Seromucous sinusitis is rarely described in the literature. The present study deals with the clinical and laboratory characteristics of a group of patients suffering from the above disorder. During the last 10 years, 32 patients suffering from seromucous maxillary sinusitis were enrolled in the study. Patients' charts were reviewed and tabulated according to age, sex, history, clinical symptoms and laboratory findings. Treatment was based on punction and drainage of the seromucous effluent. Results were also statistically evaluated. Flight trips and atypical episodes of nasal infection were the predisposing factors for seromucous maxillary sinusitis. The only clinical manifestation was coughing, for at least 12 weeks before diagnosis. Sinus effluent was composed by serous and mucous constituents with glue like structure. There were no differences between sexes in predisposing factors, or x-ray findings. The treatment is paracentesis and drainage and in one case of recurrence, middle meatotomy and sinus endoscopy. PMID:11256194

Assimakopoulos, D; Danielides, V; Kontogiannis, N; Skevas, A; Evangelou, A; Van Cauwenberge, P

2001-01-01

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Balloon -catheter usage in maxillary sinus surgery: Case report  

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Full Text Available Introduction: The postoperative drainage and the postoperative bleeding from maxillary sinus cavity have been controlled after functional sinus surgery. It has usually been done using the band of iodize gauze squeezed through the temporary opening in the vestibular mucosa or through the inferior meatal antrostomy. The aim of this study was to present the use of balloon-catheter in maxillary sinus surgery intendend for control of postoperative drainage and bleeding. Case report: Balloon-catheter was used in one female who was treated for anemia after chemotherapy and with allergy to iodine. It was inserted into the sinus cavity through the temporary inferior meatal antrostomy and removed five days after surgery without any postoperative discomforts and complications especially in this risk group of patients. Conclusion: The balloon-catheter surgery method used in risk group of patients improved the quality of postoperative period without significant complications.

Brkovi? Božidar

2006-01-01

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Carcinoma of the maxillary sinus  

International Nuclear Information System (INIS)

From 1975 to 1986, 75 M0 patients with squamous cell carcinoma of the maxillary sinus were treated at the Department of Radiology, Tokyo University Hospital. The overall 5-year survival rate calculated with the Kaplan-Meier method was 24%. During the period of the study, the method of treatment used in our hospital changed. From 1975 to 1979 (the first period), the treatment of choice was low-dose irradiation and frequent necrotomy. From 1980 to 1982 (the second period), more extensive surgery was performed and 50 to 60 Gy of irradiation was given. The 5-year survival in the first period was 20%, that in the second 14%. From 1983 to 1986 (the third period), trimodal therapy (surgery+radiation+intra-arterial infusion) was introduced and 5-year survival was improved to 50%. Intra-arterial cisplatinum infusion and treatment planning using CT scans were especially useful in improving survival. (author)

1989-01-01

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Maxillary sinusitis in Medieval Chichester, England.  

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Maxillary sinusitis is a common medical complaint, affecting more than 30 million people per year in the United States alone. Very little palaeopathological work on this disease has been carried out, probably because of the enclosed nature of the sinuses in intact skulls and the lack of a suitable method for examination. This study tested the hypothesis that maxillary sinusitis was more common in people with leprosy than in people without it in Medieval England. The prevalence of maxillary sinusitis by age and sex was recorded in 133 individuals, some diagnosed as being leprous, derived from a later Medieval (12th to 17th centuries AD) urban hospital population at Chichester, Sussex, England using both macroscopic and endoscopic methods of examination. Of the 133 individuals with one or both sinuses available for examination, 54.9% (73) had evidence of bone change within the sinuses. There was no difference in prevalence between those with leprosy and those without, although clinical studies suggest that over 50% of lepromatous leprous individuals may develop sinusitis. Comparison with another study on Medieval British sites with a 3.6% prevalence (3 of 83) indicates that the prevalence at Chichester is much greater. The problems with diagnosing sinusitis are addressed and reasons behind the high frequency in this study are discussed. Aetiological factors predisposing to maxillary sinusitis are considered with reference to possible environmental conditions prevailing in the later Medieval period in Britain. PMID:8599382

Boocock, P; Roberts, C A; Manchester, K

1995-12-01

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

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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

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

2014-01-01

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Benign Fibrous Histiocytoma of the Maxillary Sinus  

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Fibrous Histiocytoma is an uncommon neoplasm of the Head and Neck region and quite rare in the paranasal sinuses. We are reporting a case of Benign Fibrous Histiocytoma in the Maxillary sinus from the Department of Otorhinolaryngology of Bolani Hospital, Bolani with a description of clinical and histological features of the neoplasm.

Singh, Mangal

1998-01-01

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Benign Fibrous Histiocytoma of the Maxillary Sinus  

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Fobrous Histiogytoma is an uncommon neoplasm of the Head and Neck region and quite rare in the paranasal sinuses. We are reporting a case of Benign Fibrous Histiocytoma in the Maxillary sinus from the Department of Otorhinolaryngology of Bolani Hospital, Bolani with a description of clinical and histological features of the neoplasm.

Majurrider, Aloke Bose

1999-01-01

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Benign fibrous histiocytoma of the maxillary sinus.  

Science.gov (United States)

Fobrous Histiogytoma is an uncommon neoplasm of the Head and Neck region and quite rare in the paranasal sinuses. We are reporting a case of Benign Fibrous Histiocytoma in the Maxillary sinus from the Department of Otorhinolaryngology of Bolani Hospital, Bolani with a description of clinical and histological features of the neoplasm. PMID:23119482

Majurrider, A B

1999-01-01

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Treatment outcome of maxillary sinus cancer  

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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.

Jin-Hyoung Kang

2009-12-01

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A case report of mucoid retention cyst in maxillary sinus  

International Nuclear Information System (INIS)

The author have observed mucoid retention cyst in the right maxillary sinus of the patient, 41 year old woman, complained discharging of purulent exudate on the right maxillary molar area, and obtained the following conclusions; 1. The mucoid retention cyst in maxillary sinus casts a faint dome shaped shadow into the radiolucent image of maxillary sinus. 2. The mucoid retention cyst in maxillary sinus may occurred without the history of trauma. 3. Intraoral standard films are also valuable for the interpretation of the lesions in maxillary sinus but only extraoral roentgenograms.

1973-11-01

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Carcinoma of the maxillary sinus  

International Nuclear Information System (INIS)

A retrospective review of 124 patients of carcinoma of the maxillary sinus treated at Kurume University Hospital from 1971 to 1980 was completed. Of these 124 patients, 111 patients had not been previously treated and underwent curative treatment, 8 patients underwent palliative treatment, and 5 patients were those who had been previously treated at other clinics. The results of this retrospective studies are summarized as follows: 1) In the 58 patients who were followed up for 5 years or more after the onset of initial curative treatment, the 3- and 5-year crude survival rates calculated by direct method were 58.6% and 51.7%, respectively. 2) In the 111 patients who underwent curative treatments, the 3- and 5-year cumulative survival rates calculated by the actuarial method were 61.8% and 52.3%, respectively. 3) Among various factors which can be determined before the treatment, T category and L.V. histological classification were considered to be useful in order to estimate the prognosis. 4) With respect to T categorization, the JJC proposal proved to be better than the AJC proposal. 5) The majority of causes of deaths was uncontrolled primary lesion. Involvement of the cervical lymph nodes were controlled in most cases and distant metastasis were not frequent. 6) As for the treatments, the best modalities appeared to be the following two combinations: (1) infusion, radiation and necrotomy followed by an eradicating surgery and (2) infusion, radiation and necrotomy associated with a mass reduction surgery. 7) Three year crude survival rate calculated by direct method was equally 80.0% in the above two combination therapies. Final conclusions on the comparison between these two Combination treatments await further follow-up studies of more patients. (author)

1982-01-01

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Endoscopic middle meatal antrostomy in treatment of maxillary sinus mucoceles  

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Full Text Available Background/Aim. Mucocele of a paranasal sinus is a benign non-neoplastic condition characterized by cystic expansion and distension of the sinus cavity by retained mucoid secretions. Etiology is unknown. The purpose of this study was to estimate the efficiency of the endoscopic middle meatal antrostomy (MMA as a treatment modality in patients with maxillary sinus mucoceles. Methods. This retrospective study involved 11 patients with maxillary sinus mucoceles/pyoceles treated endoscopically in the Clinic for Otorhinolaryngology of Military Medical Academy, Belgrade over a 3-year period (2005-2007. The presented symptoms and signs, radiological and pathohistological findings and surgical treatment were reviewed. Results. There were four females and seven males, age 22 to 65 years (mean 33 years. Two patients were with allergic rhinitis. All the patients complained of nasal obstruction, ten had facial pain, seven had nasal discharge, five had cheek pressure, and four had epiphora, and four had headaches. On endoscopic nasal examination, the medial wall of the maxillary sinus was bulging in ten patients. Purulent drainage was seen in eight patients, septal deviation in ten, and polyps were found in two of the patients. The MMA and marsupialization of the mucocele were performed in all the patients. On histopathological examination, the mucocele wall showed a lining composed of respiratory epithelium. Postoperative follow-up ranged between 8 and 44 months (in six patients, it ranged from 24 to 44 months. No patients required revision surgery. Conclusion. The MMA with mucocele marsupialization abolishes middle meatal obstruction and establishes better drainage and ventilation of the maxillary sinus and restitution of its mucosa.

Peri? Aleksandar

2009-01-01

33

Massive Concha Bullosa with Secondary Maxillary Sinusitis  

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Concha bullosa is a common anatomic variation of the middle turbinate; however, sinusitis secondary to the concha bullosa is rare. A 52-yr-old woman presented with nasal obstruction and posterior nasal drip. Computed tomography and examination of the nasal cavity revealed septal deviation on the left side, and a massive concha bullosa and maxillary sinusitis on the right side. The lateral lamella of the affected turbinate was removed and the inspissated material was drained. Histopathologic e...

Lee, Joong Seob; Ko, Il Ju; Kang, Han Dong; Lee, Hun Suk

2008-01-01

34

Fatty tissue within the maxillary sinus: a rare finding.  

Directory of Open Access Journals (Sweden)

Full Text Available Abstract Background We report a rare case of fatty tissue within the maxillary sinus in a 21-years-old woman, with a history of several previous punctures of the maxillary sinus. Case presentation Clinical data of the patient was analysed retrospectively. The patient presented with symptoms of left-sided chronic maxillary sinusitis and had undergone several punctures of the left maxillary sinus 18 months earlier. Subsequent to one of the procedures an acute pain in the left orbit lasting a couple of days was noted. Left endoscopic transnasal antrotomy was performed. The maxillary sinus was filled with polypous, chronically inflamed mucous membrane. Upon its removal, the maxillary roof was identified as drawn downwards and covered with normal mucous membrane. Upon dissection of the membrane, adipose tissue filling the zygomatic recess of the sinus was identified and subsequently removed. The maxillary roof was unchanged. Histopatologic examination confirmed the material to be adipose tissue. No short or long term sequelae occurred. Conclusion Adipose tissue can be found in the maxillary sinus most commonly when penetrating from surrounding locations. It is our hypothesis that in the reported patient it penetrated from the orbit to the maxillary sinus following puncture. It seems that a hole in the maxillary sinus roof, about 1 mm in diameter, caused by the needle, may have been a portal of entry for the adipose tissue into the maxillary sinus. The discussed case suggests particular care be taken in performing puncture of the maxillary sinus.

Sk?adzie? Jacek

2006-09-01

35

Volumetric measurement of the maxillary sinus by coronal CT scan  

International Nuclear Information System (INIS)

The volume of the maxillary sinus was estimated by coronal CT scan. The purpose of this study was to compare the estimated volume of the normal maxillary sinus with that of the inflamed maxillary sinus. Patients were classified following evaluation by CT scan of the paranasal sinuses into 3 categories. Group A (n=12): Patients suffered from headache, facial pain and epistaxis, but CT scans of their nasal cavity and paranasal sinus were within normal limits without inflammatory change. Group B (n=69): Patients with bilateral chronic maxillary sinusitis, CT scans of whom showed inflammatory changes in both maxillary sinuses. All of the patients in this group underwent sinus surgery after coronal CT scans. Group C (n=14): Patients with unilateral chronic maxillary sinusitis, CT scans of whom showed inflammatory change in unilateral maxillary sinuses. CT scans of these patients were measured by Plannimeter to take the area of each image of the maxillary sinus. Consecutively imaged areas were summated by integral calculus to obtain an estimate of the sinus volume. The mean maxillary sinus volume in the affected sinuses was significantly smaller than those in the contralateral normal sinuses (p<0.05, Wilcoxon-test). The various volumes of the maxillary sinuses and the developmental cause were discussed. Comparison of groups A with B suggested three distinct patterns; the maxillary sinus volume has decreased due to inflammatory changes in the bone. The small sinuses have a tendency to develop chronic inflammatory change. The aeration in the maxillary sinus may be decreased when anatomic variations that may obstruct the ethmoid infundibulum exist. (K.H.)

1996-08-01

36

A case report of antrolith in the maxillary sinus  

International Nuclear Information System (INIS)

The antrolith is a rare disease in the maxillary sinus. We experienced a 67-year-old female whose chief complaint was an intermittent dull pain of clinical, radiological and histological findings, we diagnosed it as antrolith in the left maxillary sinus and obtained results as follows: 1. Three radiopaque substances in the left maxillary sinus were revealed as 'Antroliths'. 2. These antroliths were movable in the left maxillary antrum and combined with maxillary sinusitis. 3. We supposed it internal origin of nidus in this case.

1994-02-01

37

A case report of antrolith in the maxillary sinus  

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The antrolith is a rare disease in the maxillary sinus. We experienced a 67-year-old female whose chief complaint was an intermittent dull pain of clinical, radiological and histological findings, we diagnosed it as antrolith in the left maxillary sinus and obtained results as follows: 1. Three radiopaque substances in the left maxillary sinus were revealed as 'Antroliths'. 2. These antroliths were movable in the left maxillary antrum and combined with maxillary sinusitis. 3. We supposed it internal origin of nidus in this case.

Cho, Jeong Shin; Shin, In Sook; Lee, Jang Yeol; Kim, Sun Yong; Go, Jee Young; Park, Chang Seo; Kim, Kee Deog [Dept. of Dental Radiology, College of Dentistry, Yensei University, Seoul (Korea, Republic of)

1994-02-15

38

Paecilomyces lilacinus as the cause of chronic maxillary sinusitis.  

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Paecilomyces lilacinus was isolated on two separate occasions from the left antrum of a patient with chronic maxillary sinusitis. The clinical presentation and characteristics of the fungus and the sinus debris histopathology are discussed.

Rockhill, R. C.; Klein, M. D.

1980-01-01

39

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

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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 th...

Ibrahim Damlar; Burcu Keles Evlice; Sule Nur Kurt

2013-01-01

40

Endoscopic middle meatal antrostomy in treatment of maxillary sinus mucoceles  

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Background/Aim. Mucocele of a paranasal sinus is a benign non-neoplastic condition characterized by cystic expansion and distension of the sinus cavity by retained mucoid secretions. Etiology is unknown. The purpose of this study was to estimate the efficiency of the endoscopic middle meatal antrostomy (MMA) as a treatment modality in patients with maxillary sinus mucoceles. Methods. This retrospective study involved 11 patients with maxillary sinus mucoceles/pyoceles treated endoscopically i...

2009-01-01

 
 
 
 
41

Pneumatisation of the maxillary sinus in normal and symptomatic children  

International Nuclear Information System (INIS)

The pattern of pneumatisation and normal width of the maxillary sinus in 191 Nigerian infants and children whose age range was 6 months to 14 years was determined. Fifty-four percent of children with no respiratory tract or sinus infection had opaque maxillary sinus. A figure of 44.5% was obtained amongst children with suspected bronchopneumonia. Only 41.5% of suspected cases of sinusitis, acute and chronic middle ear disease had opaque sinus. The highest rate of sinus opacity was seen in children under 2 years who were asymptomatic. The mean maximal width of normally aerated sinus was 8.74 mm for children under 2 years, 16.5 mm for 3-6 years, 21.5 mm for 7-11 years and 25 mm for children 12 years and above. We conclude that maxillary sinus opacity in our experience is an unreliable index for the diagnosis of sinusitis in children. (orig.)

1986-01-01

42

Pneumatisation of the maxillary sinus in normal and symptomatic children  

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The pattern of pneumatisation and normal width of the maxillary sinus in 191 Nigerian infants and children whose age range was 6 months to 14 years was determined. Fifty-four percent of children with no respiratory tract or sinus infection had opaque maxillary sinus. A figure of 44.5% was obtained amongst children with suspected bronchopneumonia. Only 41.5% of suspected cases of sinusitis, acute and chronic middle ear disease had opaque sinus. The highest rate of sinus opacity was seen in children under 2 years who were asymptomatic. The mean maximal width of normally aerated sinus was 8.74 mm for children under 2 years, 16.5 mm for 3-6 years, 21.5 mm for 7-11 years and 25 mm for children 12 years and above. We conclude that maxillary sinus opacity in our experience is an unreliable index for the diagnosis of sinusitis in children.

Odita, J.C.; Akamaguna, A.I.; Ugbodaga, C.I.; Ogisi, F.O.; Amu, O.D.

1986-07-01

43

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

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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.

2009-09-01

44

Aspergilloma of the maxillary sinus: report of a case  

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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.

2010-12-01

45

Aspergilloma of the maxillary sinus: report of a case  

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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.

Kang, Ju Han; Kim, Gyu Tae; Choi, Yong Suk; Hwang, Eui Hwan [School of Dentistry, Kung Hee University, Seoul (Korea, Republic of); Yu, Jae Jung [Kangdong Scared Heart Hospital, Hallym Medical Center, Seoul (Korea, Republic of)

2010-12-15

46

Decreased mucosal oxygen tension in the maxillary sinuses in patients with cystic fibrosis  

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Background Pseudomonas aeruginosa in the sinuses plays a role in the lungs in cystic fibrosis (CF) patients, but little is known about the sinus environment where the bacteria adapt. Anoxic areas are found in the lower respiratory airways but it is unknown if the same conditions exist in the sinuses. Methods The oxygen tension (pO2) was measured, using a novel in vivo method, in the maxillary sinus in a group of 20 CF patients. Results The CF patients had a significant lower pO2 on the mucosa but not in the sinus lumen as compared with a control group of non-CF patients. Anoxic conditions were found in 7/39 (18%) of the sinuses from where we cultured P. aeruginosa, Stenotrophomonas maltophilia and/or coagulase negative staphylococci. Conclusion These findings support our hypothesis that P. aeruginosa can adapt or acclimate to the environment in the lungs, during growth in anoxic parts of the paranasal sinuses.

Aanaes, Kasper; Rickelt, Lars Fledelius

2011-01-01

47

Maxillary sinus carcinoma: result of radiation therapy  

International Nuclear Information System (INIS)

This hundred and sixteen patients with carcinoma of the maxillary sinus received primary therapy consisting of external beam irradiation alone or in combination with surgery and/or chemotherapy at the Department of Radiology, Tokyo Medical and Dental University Hospital, between 1953 and 1982. In our institution, methods of treating cancer of the maxillary sinus have been changed from time to time and showed different control rates and clinical courses. An actuarial 10-year survival rate of 21% has been obtained by the megavoltage irradiation alone as well as 34% actuarial 10-year survival rate by megavoltage irradiation with surgery. After the introduction of conservative surgery followed by conventional trimodal combination therapy, the local control rate has been improved. The amount of functional, cosmetic, and brain damages have been remarkably decreased by this mode of therapy. The actuarial five year survival rate was 67%. In addition, along with the improvement of the local control rate, the control of nodal and distant organ metastases have been emerging as one of the important contributions to the prognosis of this disease

1984-01-01

48

Maxillary sinus carcinoma: result of radiation therapy  

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This hundred and sixteen patients with carcinoma of the maxillary sinus received primary therapy consisting of external beam irradiation alone or in combination with surgery and/or chemotherapy at the Department of Radiology, Tokyo Medical and Dental University Hospital, between 1953 and 1982. In our institution, methods of treating cancer of the maxillary sinus have been changed from time to time and showed different control rates and clinical courses. An actuarial 10-year survival rate of 21% has been obtained by the megavoltage irradiation alone as well as 34% actuarial 10-year survival rate by megavoltage irradiation with surgery. After the introduction of conservative surgery followed by conventional trimodal combination therapy, the local control rate has been improved. The amount of functional, cosmetic, and brain damages have been remarkably decreased by this mode of therapy. The actuarial five year survival rate was 67%. In addition, along with the improvement of the local control rate, the control of nodal and distant organ metastases have been emerging as one of the important contributions to the prognosis of this disease.

Shibuya, H.; Horiuchi, J.; Suzuki, S.; Shioda, S.; Enomoto, S.

1984-07-01

49

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

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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.

Kim, Kyung Hwa; Koh, Kwang Joon [Department of Oral and Maxillofacial Radiology, School of Dentistry, and Institute of Oral Bio Science, Chonbuk National University, Jeonju (Korea, Republic of)

2008-06-15

50

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.

2008-06-01

51

Radiography of the maxillary sinus mucosal surface with tantalum  

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Experiments were made with powered Tantalum insufflated through a puncture trocar into 12 healthy maxillary sinuses and into 8 diseased sinuses. The spread of the powder was good enough to depict all the surfaces of the sinus if there was no secretion, irrespective of mucosal changes, but unsatisfactory if the sinus contained secretion. The Tantalum powder did not cause any harm to the patients and the clearance of this contrast medium gave additional information on the functional capacity of the sinus.

Laitakari, K.; Svonpaeae, J.; Kortekangas, A.E.

1983-01-01

52

Radiography of the maxillary sinus mucosal surface with tantalum  

Energy Technology Data Exchange (ETDEWEB)

Experiments were made with powdered tantalum insufflated through a puncture trocar into 12 healthy maxillary sinuses and into 8 diseased sinuses. The spread of the powder was good enough to depict all the surfaces of the sinus if there was no secretion, irrespective of mucosal changes, but unsatisfactory if the sinus contained secretion. The tantalum powder did not cause any harm to the patients and the clearance of this contrast medium gave additional information on the functional capacity of the sinus.

Laitakari, K.; Svonpaeae, J.; Kortekangas, A.E.

1984-01-01

53

Endoscopic retrieval of dental implants from the maxillary sinus.  

Science.gov (United States)

Endoscopic sinus surgery has been performed for various indications in maxillofacial surgical practices. It has been utilized for assessment of antral pathologies, removal of foreign bodies, orthognathic procedures, and treatment of facial fractures. In the cases presented, 3 dental implants which were displaced into maxillary sinuses were removed by endoscopic sinus surgery. Transantral endoscopic surgery is a reliable, minimally invasive method for retrieving displaced objects from the maxillary antrum with minimal complications. PMID:17066644

Varol, Altan; Türker, Neslihan; Göker, Kamil; Basa, Selçuk

2006-01-01

54

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.

2000-03-01

55

Measurement of maxillary sinus volume using Computed Tomography  

Energy Technology Data Exchange (ETDEWEB)

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 cm{sup 3}, 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.

Park, Chang Hee; Kim, Kee Deog; Park, Chang Seo [Dept. of Oral and Maxillofacial Radiology, College of Dentistry, Seoul University, Seoul (Korea, Republic of)

2000-03-15

56

A PARALLEL STUDY OF RHINOGENIC AND ODONTOGENIC MAXILLARY SINUS DISEASE.  

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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.

Elitsa Deliverska

2012-02-01

57

Lymphoepithelial carcinoma in the maxillary sinus: a case report  

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Abstract Introduction Lymphoepithelial carcinoma of the maxillary sinus is a very rare malignancy and it can be difficult to make a pre-operative diagnosis. Case presentation A 72-year-old Caucasian woman presented to our facility with an isolated right-side epistaxis that had been present for three months, with the results of a computed tomography scan showing a soft tissue mass in the right maxillary sinus with an impacted tooth. The results of a transnasal en...

Mohammed Darouichi; Jaber Alshammari; Philippe Monnier; Kishore Sandu

2012-01-01

58

Incidence of fungal infections in chronic maxillary sinusitis  

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Fifty patients with chronic maxillary sinusitis were included in our study. Antrat aspirate of chronically inflamed maxillary sinuses collected by antrat puncture were subjected to fungal culture. The study revealed the presence of fungi in 3 cases. Aspergillus fumigatus was isolated in 2 cases while Candida albicans was found in 1 case. The role of fungi, particularly aspergillus as pathogen is discussed in the context of antibiotics and immuno-suppressive therapy and local predisposing fact...

Aher, A. R.; Gujarathi, U. P.; Shinde, K. J.

2000-01-01

59

Odontogenic maxillary sinusitis diagnosed using conebeam x-ray CT  

International Nuclear Information System (INIS)

We evaluated the usefulness of conebeam x-ray CT in the diagnosis of odontogenic maxillary sinusitis in 21 patients. Among teeth causing odontogenic maxillary sinusitis, 95% had apical lesions after root canal treatment. Most root canals were filled with filling materials incompletely. Apical lesions in inappropriately treated teeth thus caused odontogenic maxillary sinusitis. Conebeam CT involves 3-dimensional isotropic voxel image date in up to 512 frames for transaxial, coronal, and sagittal planes, so resolution in imaging on the body axis was especially high. Multiplanar reconstruction and volume rendering images at any optional plane could be obtained without interpolation. The relationship between causative teeth and the maxillary sinus could be observed and measured, and odontogenic maxillary sinusitis accurately diagnosed. In addition to the accurate diagnosis of apical lesions, maxilla, and maxillary sinus, periodontal ligament space, lamina dura, pulp cavity, root canal, canal-treated root, apical periodontitis, alveolar ostitis, marginal periodontitis of causative teeth could be observed. Metal artifacts were minimized, making conebeam CT useful in the diagnosis of periodontal tissue and causative teeth, including root-canal-treated and crown-restored teeth. (author)

2007-08-01

60

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)

2004-01-01

 
 
 
 
61

Primary Small Cell Undifferentiated (Neuroendocrine) Carcinoma of the Maxillary Sinus  

Science.gov (United States)

Primary small cell neuroendocrine carcinoma (SNEC) of the paranasal sinuses is an extremely rare and distinctive tumor with aggressive clinical behavior. Moreover, SNECs originating in the head and neck region have been reported to be highly aggressive and to have a poor prognosis. This report describes a patient with a maxillary sinus SNEC who was successfully treated with neoadjuvant chemotherapy and concurrent chemoradiotherapy.

Yadav, Santosh Kumar; Shetty, Premalatha

2014-01-01

62

[Experience with evacuable maxillary sinus endothesis for orbital and maxillary trauma].  

Science.gov (United States)

Results with a deflatable anatomically designed Endothesis for the reduction of fractures of the antral walls, especially the orbital floor. For the treatment of the fractures of the antral walls, especially of the extended fractures of the orbital floor, after repositioning through the maxillary sinus, treatment is necessary which supports the maxillary sinus and which, being effective in all directions, protects the ciliated epithelium and guaranties the drainage of secretions. After anatomical preexaminations three differently large hollow models for the maxillary sinus made of thin-walled silicon were developed. These "Endotheses" were implanted through a facial window into the maxillary sinus and are to be filled by way of nasal drain with contrast fluid. 51 patients were subjected to clinical, x-ray and, in selected cases, endoscopic post-control. PMID:2637071

Krenkel, C; Hachleitner, J; Thaller-Antlanger, H

1989-01-01

63

CT scan for the diagnosis of maxillary sinus carcinoma  

International Nuclear Information System (INIS)

A comparative study between the conventional radiological examination and the computed tomographical examination for the diagnosis of maxillary sinus carcinoma was done. CT scan has been more appreciated to detect the tumor invasion in the pterygopalatine fossa, orbit, posterior ethmoid sinus and skull base than the conventional examination. CT scan was most usefull for the determination of size and location of the tumor. The prognosis by the stage-grouping was significantly separated by the new classification with CT scan. Therefore, new TNM classification of maxillary sinus carcinoma with CT scan should be taken into account. (author)

1984-01-01

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Chronic maxillary sinusitis caused by root canal overfilling of Calcipex II.  

Science.gov (United States)

This is a case report of chronic maxillary sinusitis caused by root canal overfilling of Calcipex II (Techno-Dent). A 60 year-old male complained of dull pain in the right maxillary molar area after complicated endodontic treatment using Calcipex II paste and was finally diagnosed with a chronic maxillary sinusitis through a clinical and radiological observation. In the biopsy examination, the periapical granuloma contained a lot of dark and translucent Calcipex II granules which were not stained with hematoxylin and eosin. They were usually engulfed by macrophages but rarely resorbed, resulting in scattering and migrating into antral mucosa. Most of the Calcipex II granules were also accumulated in the cytoplasms of secretory columnar epithelial cells, and small amount of Calcipex II granules were gradually secreted into sinus lumen by exocytosis. However, chronic granulomatous inflammation occurred without the additional recruitment of polymorphonuclear leukocytes (PMNs) and lymphocytes, and many macrophages which engulfed the Calcipex II granules were finally destroyed in the processes of cellular apoptosis. It is presumed that Calcipex II granules are likely to have a causative role to induce the granulomatous foreign body inflammation in the periapical region, and subsequently to exacerbate the chronic maxillary sinusitis in this study. PMID:24516832

Kim, Jin-Woo; Cho, Kyung-Mo; Park, Se-Hee; Park, Soh-Ra; Lee, Sang-Shin; Lee, Suk-Keun

2014-02-01

65

CT evaluation of maxillary sinus aspergillosis: morphological patterns on CT  

International Nuclear Information System (INIS)

In order to classify the involving patterns of maxillary sinus aspergillosis on CT that will be an important guidance for functional endoscopic sinus surgery (FESS) and to evaluate CT findings of each pattern. We reviewed CT findings of 37 cases of maxillary sinus aspergillosis which were confirmed pathologically. These were classified into three patterns according to the location: the maxillary pattern(I), the infundibular pattern(II), and combined pattern(III). All cases were correlated with FESS findings. We also evaluated CT density, presence of contrast enhancement and calcifications, and surrounding bony changes of each pattern. The combined pattern was most commonly seen in 24 of 37 cases (64.9%). The maxillary pattern was identified in 8 (21.6%), with 5 (13.5%) cases demonstrating the infundibular pattern. These patterns were consistent with FESS findings. Calcifications were seen in 28 cases (75.7%). 31 cases (83.3%) revealed hypodensity and 16 cases among them showed peripheral enhancement. Central high density with peripheral low density rim was shown in 25% (2/8) of the maxillary pattern and 12.5% (3/24) of combined pattern. Surrounding bony changes were noted mainly in infundibular pattern and combined pattern. Erosion of uncinate process showed all cases of both patterns. Erosion or elevation of ethmomaxillary plate was seen in 3 of 5 cases of infundibular pattern and all cases of the combined pattern. CT findings of maxillary sinus aspergillosis can be classified into 3 patterns according to their distribution. These classification could be helpful for planning FESS approach. Calcifications are the most characteristic findings of maxillary sinus aspergillosis whereas CT density or enhancement pattern do not contribute to diagnosis

1995-04-01

66

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.

2010-06-01

67

Maxillary sinus septa: comparison between panoramic radiography and CBCT  

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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.

Nah, Kyung Soo [Department of Oral and Maxillofacial Radiology, School of Dentistry, Pusan National University, Pusan (Korea, Republic of)

2010-06-15

68

Extranodal Rosai-Dorfman disease of bone, subcutaneous tissue and paranasal sinus mucosa with a review of its pathogenesis  

International Nuclear Information System (INIS)

We report an unusual case of extranodal Rosai-Dorfman disease presenting in a 36-year-old man with lesions of bone, subcutaneous tissue of the arm and maxillary sinus mucosa unassociated with lymphadenopathy or systemic symptoms. These lesions appeared metachronously within a 6-month period. The diagnostic light microscopic and immunohistochemical findings and pathogenesis of this interesting disease are discussed. (orig.)

2005-10-01

69

Bacteriological findings of acute maxillary sinusitis in young adults.  

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Bacteriological findings in 339 sinus secretions obtained by puncture were investigated in 238 young adult patients with acute maxillary sinusitis. Aerobic and anaerobic cultures were performed immediately. A total of 76% of the secretions were positive. The most common pathogens isolated were Haemophilus influenzae (50%), Streptococcus pneumoniae (19%), Streptococcus pyogenes (5%), and Branhamella catarrhalis (2%). Coagulase-negative staphylococci and Staphylococcus aureus were isolated in 8...

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

1988-01-01

70

Treatment results of maxillary sinus carcinoma  

International Nuclear Information System (INIS)

From 1967 through 1983, a total of 617 patients with maxillary sinus carcinoma were treated with radiation therapy. An overall actuarial 5-year survival rate was 36.2%. According to chronological groups, it was 24.1% in 217 patients treated during the period 1967-1971, 40.0% in 155 patients during the period 1972-1975, and 44.6% in 245 patients during the period 1976-1983. According to T staging, an actuarial 5-year local control rate was 60.0% for T1 (9 patients), 43.1% for T2 (181), 31.7% for T3 (246), and 19.2% for T4 (181). According to initial treatment, the patients were divided into four groups -- Group A treated with radiation therapy (RT) alone, Group B with RT combined with intra-arterial infusion of 5-fluorouracil (RT+5-FU), Group C with RT combined with surgical removal through curettage (RT+OP), and Group D with multidisciplinary treatment consisting of RT, 5-FU regional infusion, and curettage (RT+5-FU+OP). For T2, the 5-year actuarial local control rate was 25.5% in Group A (51 patients), 45.0% in Group B (55), 58.2% in Group C (23), and 51.5% in Group D (52). The corresponding figures for T3 were 13.2% in Group A (85 patietns), 33.6% in Group B (78), 52.3% in Group C (31), and 45.9% in Group D (52); and those for T4 were 7.6% in Group A (77 patients), 27.2% in Group B (52), 17.8% in Group C (20), and 31.5% in Group D (32). Concomitant RT and 5-FU regional infusion and/or curettage remarkably improved the local control rate. No significant additive effect of 5-FU infusion on T2 and T3 was observed, nor was any usefulness of curettage for T4 in Group B observed. A dose of TDF 90-99 was beneficial for local control rate. The use of 5-FU might reduce irradiation doses optimal to radiation therapy. (N.K.)

71

Surgical removal of dental implants displaced into the maxillary sinus  

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Full Text Available 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 surgery via the canine fossa and endoscopic approach. A relevant improvement of surgical techniques previous to, or in association with, the placement of implants in the posterior maxilla, has tremendously expanded the possibilities and indications for such treatments. To decrease the risk for developing side effects, it is recommended that sinus augmentation procedures should be performed before inserting implants in a resorbed upper jaw where sinus penetration is unavoidable. As implant displacement in the paranasal sinuses may be followed by infectious complications, an immediate or early removal of the displaced implants is indicated.

Chrcanovic Ramos Bruno

2009-01-01

72

Study of relationship between nasal cavity growth and maxillary sinus  

International Nuclear Information System (INIS)

We investigated the pattern of nasal cavity development in relation to dental occlusion development by using CT as well as image analysis instrumentation to measure the left and right nasal cavities in reference to the location of the maxillary sinus. Dried human skulls (Indian origin) were utilized in the present study. Ten samples were selected for each Hellman's dental stage (total of 100 samples). Parameters of the vomer were measured by obtaining CT images. For image analysis, pretreatment of shadowing correction was followed by binarization treatment and measurement of points (intersecting points: anterior and medial wall of the maxillary sinus (point a''), medial and posterior wall (''b''), posterior wall and zygomatic bone (''c''), anterior wall and zygomatic bone (''d''), the intersecting point of the perpendicular line from point ''d'' to the medial wall (''e''), the intersecting point of the perpendicular line from point ''c'' to the medial wall (''f''), the intersecting point of the perpendicular line from the center of gravity to the medial wall (''g''), the intersecting point of the perpendicular line from the center of gravity to the posterior wall of the maxillary sinus (''h'').) Measuring points showed a slight tendency to increase from IA to IVC in the right and left. From IA to IC, a clear increase forward was observed. Our results suggest that the growth of the maxillary sinus and nasal cavity affected the developmental stage of occlusion. (author)

2003-08-01

73

Transnasal Marsupialization Using Endoscopic Sinus Surgery for Treatment of Keratocystic Odontogenic Tumor in Maxillary Sinus  

Science.gov (United States)

Objective. We report the first utilisation of transnasal marsupialization to treat a keratocystic odontogenic tumor in the maxillary sinus of a 37-year-old man. Case Report. A 37-year-old man presented with a nasal discharge and right odontalgia. Computed tomography revealed an expanding cystic lesion with a calcificated wall containing an impacted tooth in the right maxillary sinus. The diagnosis was keratocystic odontogenic tumor. Transnasal marsupialization was performed using endoscopic sinus surgery to enlarge the maxillary ostium and remove a portion of the cystic wall. Pathological findings included lining squamous epithelium and inflammation. The remaining tumor shrank, becoming free of infection after surgery, without proliferation. Conclusion. Transnasal marsupialization using endoscopic sinus surgery is effective in treating keratocystic odontogenic tumors. It offers minimal surgical invasion and reductive change, making it advantageous for complete removal with fewer complications in the bones and surrounding tissue in the case of secondary surgery.

Ohki, Masafumi

2012-01-01

74

Prevalence of sinus augmentation associated with maxillary posterior implants.  

Science.gov (United States)

Pneumatization of the maxillary sinus limits the quantity of alveolar bone available for implant placement and may result in a lack of primary stability and difficulty in achieving osseointegration. The purpose of this study was to retrospectively analyze a group of patients who had implants placed in the posterior maxilla, calculate the prevalence of sinus augmentation, and identify factors related to sinus augmentation. With institutional review board approval, dental records from a population of patients who had implants placed in the maxillary posterior region between January 2000 and December 2004 were used to create a database. Independent variables were classified as continuous (age of the patient at stage 1 implant surgery [S1], time between extraction and S1, time between extraction and sinus augmentation, and time between sinus augmentation and S1) and categorical (gender, implant failure, American Society of Anesthesiologists system classification, smoking, osteoporosis, residual crestal bone height, implant position, implant proximity, prostheses type, and implant diameter and length). The dependent variable was the incidence of a sinus augmentation procedure. Simple logistic regression was used to assess the influence of each factor on the presence of sinus augmentation (P implants with an overall survival rate of 93.2% over a mean follow-up period of 35.7 months. Of 502 implants, 272 (54.2%) were associated with a sinus augmentation procedure. Among variables, residual crestal bone height (P implant position (P implant proximity (P type (P implant failure (P implant diameter (P implants were involved with a sinus augmentation procedure. The prevalence of sinus augmentation increased with decreased residual crestal bone height, more posterior implant locations, and complete or partial edentulism. Sinus augmentation was significantly associated with implant failure and wide implants. PMID:21651386

Seong, Wook-Jin; Barczak, Michael; Jung, Jae; Basu, Saonli; Olin, Paul S; Conrad, Heather J

2013-12-01

75

CT and MRI findings of the nasal cavity and paranasal sinuses in patients with nasal polyposis. Evaluation of the maxillary sinus and frontal sinus disease  

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We reported the classification of nasal polyposis owing to the extent of paranasal sinus disease by using CT and MRI. The relation between the presence of maxillary and frontal sinus disease and the extent of disease in the nasal cavity, ethmoid sinus and sphenoid sinus was investigated. Statistical analysis showed significant relationship between the extent of disease into the anterior, posterior ethmoid and sphenoid sinuses and the presence of maxillary and frontal sinus disease in patients with nasal polyposis. (author)

Masaki, Masami; Yonemoto, Tomoaki [Tokyo Kyosai Hospital (Japan); Tachibana, Toshiro

1996-10-01

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A study of the distribution pattern and correlation between maxillary, frontal and sphenoid sinus volume  

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In an attempt to study the distribution pattern and correlation between maxillary, frontal and sphenoid sinus volume, sinus volumes were measured by coronal CT scans of the paranasal sinus. Two hundred and four maxillary sinuses of 102 patients, the frontal sinuses of 62 patients and the sphenoid sinuses of 68 patients with no inflammatory changes detectable on CT scans of the each paranasal sinus and nasal cavity were analyzed. The volumes of the maxillary sinus showed a normal distribution, and its mean volume and standard deviation were 20.5{+-}9.2 cm{sup 3}. The logarithms of both frontal and sphenoid sinus volumes exhibited an normal distribution. The mean volume of the frontal sinus and the sphenoid sinus, which were calculated using logarithms of the sinus volumes statistically, were 8.3 cm{sup 3} and 9.6 cm{sup 3} respectively. The correlation coefficient was 0.134 between the maxillary and frontal sinus, 0.445 between the maxillary and sphenoid sinus and 0.315 between the frontal and sphenoid sinus. It is suggested that differences in the volume distribution pattern between the maxillary sinus and frontal or sphenoid sinus might be caused by differences in the growing process of each sinus. (author)

Ikeda, Atsuko; Komatsuzaki, Atsushi [Tokyo Medical and Dental Univ. (Japan). School of Medicine; Ikeda, Motohisa

1997-11-01

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Morphometric analysis of the relationships between the maxillary first molar and maxillary sinus floor  

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Full Text Available Objectives: To assess the relationships between the maxillary first molar and the maxillary sinus floor in a group of patients referred to a dental clinic. Methods: Ninety-seven patients were recruited for this study. The distances between the examined roots (mesio-buccal, disto-buccal and palatal as well as furcations, and the sinus floor, were evaluated using cone beam computed tomography, and grouped as follows: class 0: distance = 0 mm; class 1: 0 mm < distance < 2 mm; class 2: 2 mm ? distance < 4 mm; class 3: 4 mm ? distance < 6 mm; class 4: 6 mm ? distance. The Spearman’s Rank Correlation coefficient was used to test the univariate associations between furca-tion-sinus floor distance and each root class. Results: The prevalence of class 0 was the highest for the palatal root (44.33%, followed in descending order by mesio-buccal (40.21%, and disto-buccal (38.14% roots. The highest correlation coefficient was recorded when assessing the relationship between furcation-sinus floor distance and palatal root classes (rho = 0.66, p < 0.001, n = 97. Conclusions: Altogether, the results suggest that the palatal root of the maxillary first molar not only had the closest relationship with the sinus floor, but also proved to be the best predictor for the furcation-sinus floor distance. The clinician should be aware of the anatomical and morphological details of this root, especially when taking surgical decisions.

Andreea Didilescu

2012-10-01

78

Ectopic Molar with Maxillary Sinus Drainage Obstruction and Oroantral Fistula  

Science.gov (United States)

Introduction: Ectopic tooth eruption may result owing to one of 3 processes: developmentalDisturbance, iatrogenic activity, or pathologic process, such as a tumor or a cyst. In rare cases, occlusion of the sinus ostia may predispose a patient to develop a maxillary sinus mucocele. When the maxillary sinus is invaded, symptoms usually occur late in the process. Case Report: A 17 years old boy referred to department of Otolaryngology, Head and Neck Surgery of university of medical sciences, Tabriz_Iran in 2010 with chronic recurrent mucoprulent discharge from retromollar trigone , posterior to right superior alveolar ridge. CT scan revealed a dense mass resembling tooth, obstructing sinus ostium with homogenous opacity with ring enhancement, occupying whole sinus and expanding all walls. A Caldwell Luke approach in combination with endoscopy was selected. Conclusion: In the present patient, removal of ectopic tooth resolved the symptoms completely, the fistula obstructed and discharges discontinued. An ectopic tooth is a rare entity obstructing sinus ostium. The etiology of ectopic eruption has not yet been completely clarified, but many theories have been suggested,including trauma, infection, developmental anomalies and pathologic conditions, such as dentigerous cysts. In summary, although the ectopic teeth is rare but it would be assumed in presence of unilateral symptoms of sinonasal cavity. Therefore in peristant unilateral sinonasal symptoms we should complete examining of this site to rule out rare causes of these symptoms.

Abdollahifakhim, Shahin; Mousaviagdas, Mehrnoush

2013-01-01

79

Ectopic Molar with Maxillary Sinus Drainage Obstruction and Oroantral Fistula  

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Full Text Available Introduction: Ectopic tooth eruption may result owing to one of 3 processes: developmentalDisturbance, iatrogenic activity, or pathologic process, such as a tumor or a cyst. In rare cases, occlusion of the sinus ostia may predispose a patient to develop a maxillary sinus mucocele. When the maxillary sinus is invaded, symptoms usually occur late in the process.   Case report: A 17 years old boy referred to department of Otolaryngology, Head and Neck Surgery of university of medical sciences, Tabriz_Iran in 2010 with chronic recurrent mucoprulent discharge from retromollar trigone , posterior to right superior alveolar ridge. CT scan revealed a dense mass resembling tooth, obstructing sinus ostium with homogenous opacity with ring enhancement, occupying whole sinus and expanding all walls. A Caldwell Luke approach in combination with endoscopy was selected.   Discussions: In the present patient, removal of ectopic tooth resolved the symptoms completely, the fistula obstructed and discharges discontinued. An ectopic tooth is a rare entity obstructing sinus ostium. The etiology of ectopic eruption has not yet been completely clarified, but many theories have been suggested,including trauma, infection, developmental anomalies and pathologic conditions, such as dentigerous cysts. In summary, although the ectopic teeth is rare but it would be assumed in presence of unilateral symptoms of sinonasal cavity. Therefore in peristant unilateral sinonasal symptoms we should complete examining of this site to rule out rare causes of these symptoms.

Shahin Abdollahifakhim

2013-06-01

80

Recurrent solid ameloblastoma of the maxillary sinus: A case report  

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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.

Martins de Paiva Tadeu Leonardo

2012-01-01

 
 
 
 
81

Persistent Deciduous Molar as an Etiology for a Maxillary Sinus Mucocele  

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Mucoceles are accumulations of trapped mucus, forming cystic expansile lesions. Maxillary sinus mucoceles are rare amongst paranasal sinus mucoceles, usually being a late sequel of Caldwell-Luc surgery. We present a case of a maxillary sinus mucocele due to a persistent carious deciduous molar in a middle aged patient, reported to highlight its unusual etiology.

2011-01-01

82

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

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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

Ibrahim Damlar

2013-06-01

83

Maxillary sinusitis caused by Lasiodiplodia theobromae  

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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.

Kindo A

2010-01-01

84

Maxillary sinusitis caused by Lasiodiplodia theobromae.  

Science.gov (United States)

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. PMID:20404468

Kindo, A J; Pramod, C; Anita, S; Mohanty, S

2010-01-01

85

Sonic aerosol therapy to target maxillary sinuses  

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Aim: Intranasal aerosol administration of drugs is widely used by ENT specialists. Although clinical evidence is still lacking, intranasal nebulization appears to be an interesting therapeutic option for local drug delivery, targeting anatomic sites beyond the nasal valve. The sonic nebulizer NL11SN associates a 100 Hertz (Hz) sound to the aerosolization to improve deposition in the nasal/paranasal sinuses. The aim of the present study was: to evaluate in vivo the influence of associating a 1...

2012-01-01

86

Radiological findings of the post-sinus lift maxillary sinus: a computerized tomography follow-up.  

Science.gov (United States)

The purpose of this paper is to present radiological findings of a short-term (8 to 10 months) computerized tomography (CT) follow-up study on 1-stage maxillary sinus lift cases. Pre- and postoperative dental CT scans of 21 patients (24 sinuses) after sinus lift procedures were compared. CT scans were used to assess newly formed bone and its interface with the implants, condition of the sinus membrane, evidence of buccal window cortication, and presence of any sinus pathology. Of the 57 implants placed, 28 had bone fully covering the implant on all sides which did not extend above the apical portion; 20 had bone fully covering the implant which did extend above the apex; and 9 exhibited incomplete bone coverage. All implants supported a fixed ceramo-metal prosthesis, and no implant failures were recorded after 3 years of follow-up. There was evidence of cortication of the buccal window in 10 sinuses; in the 14 remaining sinuses, bone consolidation on the buccal aspect was evident, but no evidence of cortication was seen. All sinuses healed without complications or clinical signs of sinusitis. In 11 sinuses, no changes in membrane thickness were noted. Membrane thickness decreased postoperatively in 12 sinuses, and in one, there was evidence of membrane thickening. Bone cortication in the anterior wall window may serve as an indicator for the remodeling status of the entire graft. Postoperative findings showed a significant improvement in overall membrane thickness. No clinical symptoms of sinusitis were evident, indicating that sinus lift procedures can be considered safe and do not predispose the sinus to acute or chronic sinusitis. PMID:10632532

Peleg, M; Chaushu, G; Mazor, Z; Ardekian, L; Bakoon, M

1999-12-01

87

Maxillary subperiosteal implantitis that caused severe bone resorption of the maxilla with perforation of the maxillary sinus and sinusitis: A case report  

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Full Text Available Subperiosteal implants are generally used in the severely resorbed areas, and although dwindling in use, they have shown to be successful treatment options for the edentulous dental patients. We report a case of maxillary subperiosteal implantitis that caused sinusitis. A 59-year-old man was referred to our clinic in March 2003 with a chief complaint of pain and swelling in the bilateral upper molar region. He received a surgical operation for maxillary subperiosteal implant at another dental clinic in April 2001. CT scans demonstrated that the radiopacity of the right maxillary sinus extended to the ethmoid and frontal sinuses. Extensive surgical debridement was performed. The radiopacity of the right maxillary sinus in CT almost disappeared in a month. Two months later, the occlusal function was recovered using a new maxillary complete denture. The patient has had no symptoms and no occlusal disturbance by the denture for more than nine years.

Kazuki Takaoka

2013-06-01

88

Cerebral venous thrombosis associated with maxillary and ethmoid sinusitis--a case report.  

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We herein report a young patient with cerebral venous thrombosis (CVT) with clinical and neuroradiological findings of the left maxillary and anterior ethmoid sinusitis. Serial brain MRIs showed cerebral venous infarct and thrombosis in the superior sagittal sinus (SSS). MR angiography demonstrated nonvisualization of SSS and bilateral transverse sinus. According to our knowledge, CVT associated with maxillary and ethmoid sinusitis has been reported very rarely. High index of suspicion and ne...

Lee, T. G.; Yoon, H. J.; Ha, C. K.; Lim, B. H.; Kim, J. H.; Roh, J. K.

1995-01-01

89

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.

1998-08-01

90

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

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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.

Kang, Byung Chul [Dept. of Oral and Maxillofacial Radiology, College of Dentistry, Chonam National University, Kwangju (Korea, Republic of)

1998-08-15

91

Radiodense concretions in maxillary sinus aspergillosis: pathogenesis and the role of CT densitometry  

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The purpose of this study was to investigate by CT the origin of radiodense maxillary sinus concretions and whether CT densitometry is effective in the prediction of maxillary sinus aspergillosis and in the differentiation of the origin of these concretions. In a prospective study in 21 patients with radiodense maxillary sinus concretions detected by radiography, a preoperative CT study of the paranasal sinuses and the concretions was undertaken. Additional scans of the upper alveolar ridge were also performed. Radiological findings were compared with clinical symptoms and with CT findings, especially CT densitometry of the sinus concretions and dental root-filling material. All patients underwent a functional Caldwell-Luc operation; histological and microbiological examinations were performed. Fifteen of the 21 patients (71.4%) with radiodense concretions had a histological and microbiological diagnosis of sinus aspergillosis. The sinus concretions had CT densities higher than 2000 HU (Housfield units) in 15 patients and lower than 2000 HU in 6. Fourteen of 15 patients (93.3%) with concretions ahving CT densities higher than 2000 HU had a postoperative diagnosis of maxillary sinus aspergillosis. The mean CT density of the sinus concretions in patients with maxillary sinus aspergillosis was 2868 HU (range 1870-3070 HU), and in patients without aspergiollosis was 778 HU (range 228-2644 HU). The mean CT density of the dental root-filling material was 2866 HU (range 2156-3070 HU). Paranasal sinus CT with CT densitometry of a sinus concretion has a higher accuracy than standard radiogrpahy and clinical findings in the prediction of maxillary sinus aspergillosis (93.3% vs 71.4%). CT densitometry helps to confirm the dental origin of maxillary sinus concretions and to explain a possible dental pathogenesis of maxillary sinus aspergillosis. (orig.)

Lenglinger, F.X. [Dept. of Radiology, Allgemeines Krankenhaus Wels der Barmherzigen Schwestern vom Heiligen Kreuz (Austria); Krennmair, G. [Dept. of Oral and Maxillofacial Surgery, Allgemeines Krankenhaus Wels (Austria)]|[Univ. of Vienna, School of Dentistry (Austria); Mueller-Schelken, H. [Dept. of Oral and Maxillofacial Surgery, Allgemeines Krankenhaus Wels (Austria); Artmann, W. [Dept. of Radiology, Allgemeines Krankenhaus Wels der Barmherzigen Schwestern vom Heiligen Kreuz (Austria)

1996-06-01

92

A combined frontal and maxillary sinus approach for repulsion of the third maxillary molar in a horse.  

Science.gov (United States)

The 3rd maxillary molar is a difficult tooth to remove by extraction or repulsion. A combined frontal and maxillary approach provides good exposure for repulsion of this tooth, debridement of the sinuses, and placement of an alveolar seal. The improved exposure should minimize operative difficulties and postoperative complications. PMID:11326631

Boutros, C P; Koenig, J B

2001-04-01

93

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.)

1995-11-01

94

Hyperostosis of the maxillary sinus wall in aspergillosis: is it a characteristic finding  

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To determine whether the wall thickening of the maxillary sinus is a characteristic finding in aspergillosis. In 103 patients, including 26 with aspergillosis, 21 with inverted papilloma (IP), and 56 with unilateral chronic sinusitis, the thickness of the maxillary sinus wall was determined by CT scanning. All cases were proven pathologically, and patients with a history of previous surgery of bone destruction were excluded. Two neuroradiologists retrospectively reviewed the CT scans using bone window settings for sinus wall hyperostosis and the presence of intrasinus calcification. Thickening of the maxillary sinus wall was assessed visually in a semiquantitative manner, and graded as 'none' (absence of thickening), 'mild' (thickening of up to 1.5 times), or moderate ot severe(over 1.5 times thicker than normal contralateral sinus wall at its thickest point). Moderate to severe wall thickening was found only in patients with aspergillosis (21/26, 80.8%). Mild wall thickening was seen in two patients with aspergillosis (2/26, 7.7%), in 12 of 21 with IP (57.1%), and in 5 of 56 with chronic maxillary sinusitis (8.9%). Most cases of chronic maxillary sinusits( 51/56,91.1%), 9/21 IP cases (42.9%), and 3/26 cases of aspergillosis (11.5%) showed no thickening of the maxillary sinus wall. Calcifications were found in 18 patients with aspergillosis (69.2%), in no patient with IP (0%), and in one with chronic maxillary sinusitis (1.8%). We suggest that 'moderate to severe' wall thickening of the maxillary sinus is the characteristic finding of aspergillosis. Although various sinonasal diseases can cause bone change, CT findings of hyperostosis of the maxillary sinus and intrasinus calcification are very helpful in differentiating fungal sinusitis from other types of chronic inflammatory lesions.

Kim, Ji Young; Cho, Woo Ho; Kim, Joung Sook; Kim, Myung Gyu; Kim, Young Hoon; Woo, Hoon Young [College of Medicine, Inje Univ., Kimhae (Korea, Republic of)

2002-03-01

95

Hyperostosis of the maxillary sinus wall in aspergillosis: is it a characteristic finding  

International Nuclear Information System (INIS)

To determine whether the wall thickening of the maxillary sinus is a characteristic finding in aspergillosis. In 103 patients, including 26 with aspergillosis, 21 with inverted papilloma (IP), and 56 with unilateral chronic sinusitis, the thickness of the maxillary sinus wall was determined by CT scanning. All cases were proven pathologically, and patients with a history of previous surgery of bone destruction were excluded. Two neuroradiologists retrospectively reviewed the CT scans using bone window settings for sinus wall hyperostosis and the presence of intrasinus calcification. Thickening of the maxillary sinus wall was assessed visually in a semiquantitative manner, and graded as 'none' (absence of thickening), 'mild' (thickening of up to 1.5 times), or moderate ot severe(over 1.5 times thicker than normal contralateral sinus wall at its thickest point). Moderate to severe wall thickening was found only in patients with aspergillosis (21/26, 80.8%). Mild wall thickening was seen in two patients with aspergillosis (2/26, 7.7%), in 12 of 21 with IP (57.1%), and in 5 of 56 with chronic maxillary sinusitis (8.9%). Most cases of chronic maxillary sinusits( 51/56,91.1%), 9/21 IP cases (42.9%), and 3/26 cases of aspergillosis (11.5%) showed no thickening of the maxillary sinus wall. Calcifications were found in 18 patients with aspergillosis (69.2%), in no patient with IP (0%), and in one with chronic maxillary sinusitis (1.8%). We suggest that 'moderate to severe' wall thickening of the maxillary sinus is the characteristic finding of aspergillosis. Although various sinonasal diseases can cause bone change, CT findings of hyperostosis of the maxillary sinus and intrasinus calcification are very helpful in differentiating fungal sinusitis from other types of chronic inflammatory lesions

2002-03-01

96

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)

1987-12-01

97

CT findings of malignant tumors of maxillary sinus  

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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)

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

1987-12-15

98

A Radiologic Study of the Relationship of the Maxillary Sinus Floor and Apex of the Maxillary Molar  

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In this study, radiographic evaluation was made using panoramic radiography and cross-sectional tomography of SCANORA in male and female adults in their 20 s on the relationship between the maxillary sinus floor and the apex of the maxillary molar, to test the accuracy and effectiveness of the cross-sectional tomography, and to use this information in the assessment of preop, and postop, root canal treatment, apical surgery, extraction and implantology. Forty-one adults with an average age of 24.4 years were studied panoramic radiography and cross-sectional tomography. In panoramic view and cross-sectional view, the position of the apices of maxillary molars were classified as separated, contacted, or protruded type; the general shape of the maxillary sinus floor was evaluated horizontally and vertically from cross-sectional tomography. The accuracy of each radiography was tested using maxilla from 5 fresh cadavers from the Anatomy Lab at Yonsei University Dental College, and panoramic view and cross-sectional tomography were taken in the same condition as with the patients. The results were as follows: 1. Panoramic view and cross-sectional view were taken in the maxilla specimen, and the actual distance between the maxillary sinus floor and the tooth apices were measured in the specimen; the median values of the distance from the tooth apices to the maxillary sinus floor in the panoramic view, cross-sectional view and in the accrual maxilla specimen were 2.83 mm, 4.51 mm, and 4.15 mm, respectively. In the cross-sectional view, the measured distance was close to the actual distance but in the panoramic view, the measured distance was far from the actual distance. 2. When the results of the panoramic view and cross-sectional view were compared, 40.5% of the results agreed with each other in the two radiographic methods and buccal roots of the 2nd molar were the closest to the maxillary sinus floor in the cross-sectional tomography.3. In cross-sectional view, when the vertical relationship of the maxillary sinus floor and maxillary roots was assessed, in 1st molars, type II (the sinus floor that extends down to the buccolingual furcation area) was predominant, while in 2nd molars, type I (the sinus floor located above the level connecting the buccal and lingual apices) was predominant. In the horizontal relationship, in 1st olars, type II (ths lowest floor of the maxillary sinus located in between the buccal and lingual roots) was predominant; in 2nd molars, type I (the lowest floor of the maxillary sinus located on the buccal side of the buccal roots) and type II appeared in similar frequency. In conclusion, the SCANORA cross-sectional tomography was more effective than the frequently used panoramic view, in that the relationship of the maxillary molars and maxillary sinus floor can be evaluated more accurately and the buccolingual cross-sectional view can also be observed. And maxillary sinus floor that was close to maxillary 2nd molar had tendency to be located on buccal side than that close to 1st molar. Therefore, cross-sectional tomography is an effective and accurate method to evaluate the position of the teeth in relation to the sinus floor preoperative and can be easily used to diagnose localized periapical lesions. Also the image quality obtained was quite satisfactory.

Yoon, Hae Rym; Park, Chang Seo [Dept. of Dental Radiology, College of Dentistry, Yonsei University, Seoul (Korea, Republic of)

1998-02-15

99

A Radiologic Study of the Relationship of the Maxillary Sinus Floor and Apex of the Maxillary Molar  

International Nuclear Information System (INIS)

In this study, radiographic evaluation was made using panoramic radiography and cross-sectional tomography of SCANORA in male and female adults in their 20 s on the relationship between the maxillary sinus floor and the apex of the maxillary molar, to test the accuracy and effectiveness of the cross-sectional tomography, and to use this information in the assessment of preop, and postop, root canal treatment, apical surgery, extraction and implantology. Forty-one adults with an average age of 24.4 years were studied panoramic radiography and cross-sectional tomography. In panoramic view and cross-sectional view, the position of the apices of maxillary molars were classified as separated, contacted, or protruded type; the general shape of the maxillary sinus floor was evaluated horizontally and vertically from cross-sectional tomography. The accuracy of each radiography was tested using maxilla from 5 fresh cadavers from the Anatomy Lab at Yonsei University Dental College, and panoramic view and cross-sectional tomography were taken in the same condition as with the patients. The results were as follows ; 1. Panoramic view and cross-sectional view were taken in the maxilla specimen, and the actual distance between the maxillary sinus floor and the tooth apices were measured in the specimen; the median values of the distance from the tooth apices to the maxillary sinus floor in the panoramic view, cross-sectional view and in the accrual maxilla specimen were 2.83 mm, 4.51 mm, and 4.15 mm, respectively. In the cross-sectional view, the measured distance was close to the actual distance but in the panoramic view, the measured distance was far from the actual distance. 2. When the results of the panoramic view and cross-sectional view were compared, 40.5% of the results agreed with each other in the two radiographic methods and buccal roots of the 2nd molar were the closest to the maxillary sinus floor in the cross-sectional tomography.3. In cross-sectional view, when the vertical relationship of the maxillary sinus floor and maxillary roots was assessed, in 1st molars, type II (the sinus floor that extends down to the buccolingual furcation area) was predominant, while in 2nd molars, type I (the sinus floor located above the level connecting the buccal and lingual apices) was predominant. In the horizontal relationship, in 1st olars, type II (ths lowest floor of the maxillary sinus located in between the buccal and lingual roots) was predominant; in 2nd molars, type I (the lowest floor of the maxillary sinus located on the buccal side of the buccal roots) and type II appeared in similar frequency. In conclusion, the SCANORA cross-sectional tomography was more effective than the frequently used panoramic view, in that the relationship of the maxillary molars and maxillary sinus floor can be evaluated more accurately and the buccolingual cross-sectional view can also be observed. And maxillary sinus floor that was close to maxillary 2nd molar had tendency to be located on buccal side than that close to 1st molar. Therefore, cross-sectional tomography is an effective and accurate method to evaluate the position of the teeth in relation to the sinus floor preoperative and can be easily used to diagnose localized periapical lesions. Also the image quality obtained was quite satisfactory.

1998-02-01

100

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

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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.

Choi, Eui Hwan; Park, Won Kyl [Dept. of Oral and Maxillofacial Radiology, College of Dentistry, Chosun University, Kwangju (Korea, Republic of)

1996-08-15

 
 
 
 
101

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.

1996-08-01

102

Radiodense concrements in sinus maxillaris-CT diagnosis of sinus aspergillosis  

International Nuclear Information System (INIS)

11 patients with radiodense concrements in the sinus maxillaris underwent a preoperative computertomographic examination of the sinus maxillaris and the sinus concrements. 8 patients (72.7%) with the occurrence of radiodense concrements presented postoperative a histological and microbiological infection with aspergillus fumigatus. The CT-numbers of radiodense concrements in patients with aspergillus were 2802±302.4 HU (Hounsfield Unit). Concrements of patients without aspergillus infection (n=3) had lower density (368.6±149.1 HU; p<0.001). The root filling materials showed narly the same CT-numbers in patients with aspergillus infection (2537±398.5 HU) and in patients without aspergillus infections (2544.3±460.6 HU). Density of root filling material was at the same level as density of radiopaque concrements in patients with aspergillus infections. According to CT-examinations a direct connection between root filling materials and aspergillus infection was noted. Therefore in patients with radiodense concrements computertomographic examination helps to determine the kind of sinus infection. (orig.)

1993-03-01

103

A Case Report of Maxillary Sinus Mucocele and Its Endoscopic Therapy  

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Full Text Available Maxillary sinus mucocele is very rare in the Para nasal sinuses and sinus surgery e.g. Caldwell-luk surgery is the most common its etiology and other causes are congenital ,mucosal retention , inflammatory , infectious and post traumatic. This study reports one case maxillary sinus mucocele with expansion to nasal cavity in 55 years old man that was undergone endoscopic sinus surgery and then fallowed up for 9months that middle meatal antrostomy was patent and patient reported resolution of symptoms and hadn’t recurrence.

M. Shayani Nasab

2004-04-01

104

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

Science.gov (United States)

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 maxillary 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 < 1 mm (68.9%). The prevalence of sinus septa was 55.2%, and that of sinus pathology was 57.4%. The mean age was 43.07 ± 17.55 years. There was a statistically significant difference between the location of the artery and gender (p < 0.05). The prevalence of sinus membrane thickening was 57.4%. Detailed knowledge about the location of the PSAA and sinus morphology may be obtained with CBCT before maxillary sinus surgery. PMID:24036981

Ilgüy, Dilhan; Ilgüy, Mehmet; Dolekoglu, Semanur; Fisekcioglu, Erdogan

2013-01-01

105

A study on morphology of maxillary sinus by using the orthopantomograms  

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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.

Kim, Hyung Shick; Kim, Jhai Dhuck [Department of Dentistry, Graduate School, Chosun University, Kwangju (Korea, Republic of)

1983-11-15

106

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.

1983-11-01

107

Clear cell calcifying epithelial odontogenic (Pindborg) tumor involving the maxillary sinus: A case report and review of literature  

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Calcifying epithelial odontogenic tumor (CEOT) is a rare benign odontogenic neoplasm of the jaws, accounting for less than 3% of all odontogenic tumors. It rarely extends into the maxillary sinus. Till date, six cases involving maxillary sinus have been reported. In this paper, we report the seventh case of a 52-year-old male with CEOT in maxilla extending from distal surface of the right maxillary canine to retromolar area and involving maxillary sinus with no association with impacted teeth...

Sahni, Priya; Nayak, Meghanand T.; Singhvi, Abhishek; Sharma, Jayanti

2012-01-01

108

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

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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)

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

109

Radiotherapy of maxillary sinuses carcinoma: state of art  

International Nuclear Information System (INIS)

Maxillary sinus carcinomas are rare malignancies of the face, characterized by high local relapsing rate. Modalities of treatment are without consensus and respective roles of radiation therapy and surgery remain controversial. As those malignancies are often diagnosed at locally advanced stage, radiation therapy may frequently be used for patients having unresectable advanced disease. Nevertheless, surgery remains treatment of choice for more localized malignancies, in association with systematic postoperative radiotherapy. For those patients whose prognosis remains pejorative, it is necessary to precise the role of radiotherapy in first intention for inoperable tumors, to define necessity for nodal treatment performing and evaluate the place of neo-adjuvant or concomitant chemotherapy in a multimodal strategy. (authors)

2009-06-01

110

Carcinoma of the maxillary sinus; The role of radiotherapy  

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From 1975 to 1986, 75 M0 patients with squamous cell carcinoma of the maxillary sinus were treated at the Department of Radiology, Tokyo University Hospital. The overall 5-year survival rate calculated with the Kaplan-Meier method was 24%. During the period of the study, the method of treatment used in our hospital changed. From 1975 to 1979 (the first period), the treatment of choice was low-dose irradiation and frequent necrotomy. From 1980 to 1982 (the second period), more extensive surgery was performed and 50 to 60 Gy of irradiation was given. The 5-year survival in the first period was 20%, that in the second 14%. From 1983 to 1986 (the third period), trimodal therapy (surgery+radiation+intra-arterial infusion) was introduced and 5-year survival was improved to 50%. Intra-arterial cisplatinum infusion and treatment planning using CT scans were especially useful in improving survival. (author).

Sakata, Kohichi; Akanuma, Atsuo; Aoki, Yukimasa; Karasawa, Katsuyuki; Nakagawa, Keiichi; Iio, Masahiro (Tokyo Univ. (Japan). Faculty of Medicine)

111

Carcinoma of the maxillary sinus: the role of radiotherapy.  

Science.gov (United States)

From 1975 to 1986, 75 M0 patients with squamous cell carcinoma of the maxillary sinus were treated at the Department of Radiology, Tokyo University Hospital. The overall 5-year survival rate calculated with the Kaplan-Meier method was 24%. During the period of the study, the method of treatment used in our hospital changed. From 1975 to 1979 (the first period), the treatment of choice was low-dose irradiation and frequent necrotomy. From 1980 to 1982 (the second period), more extensive surgery was performed and 50 to 60 Gy of irradiation was given. The 5-year survival in the first period was 20%, that in the second 14%. From 1983 to 1986 (the third period), trimodal therapy (surgery + radiation + intra-arterial infusion) was introduced and 5-year survival was improved to 50%. Intra-arterial cisplatinum infusion and treatment planning using CT scans were especially useful in improving survival. PMID:2633217

Sakata, K; Akanuma, A; Aoki, Y; Karasawa, K; Nakagawa, K; Iio, M

1989-01-01

112

Osteogenic potential of adult stem cells from human maxillary sinus membrane by Simvastatin in vitro: preliminary report  

Science.gov (United States)

Objectives The objective of this study is to determine the adequate concentration and to evaluate the osteogenic potential of simvastatin in human maxillary sinus membrane-derived stem cells (hSMSC). Materials and Methods Mesenchymal stem cells derived from the human maxillary sinus membrane were treated with various concentrations of simvastatin. The adequate concentration of simvastatin for osteogenic induction was determined using bone morphogenetic protein (BMP-2). The efficacy of osteogenic differentiation of simavastatin was verified using osteocalcin mRNA, and the mineralization efficacy of hSMSCs and simvastatin treatment was compared with alkaline phosphatase and von Kossa staining. Results Expression of BMP-2 mRNA and protein was observed after three days and was dependent on the concentration of simvastatin. Expression of osteocalcin mRNA was observed after three days in the 1.0 µM simvastatin-treated group. Mineralization was observed after three days in the simvastatin-treated group. Conclusion These results suggest that simvastatin induces the osteogenic potential of mesenchymal stem cells derived from the human maxillary sinus membrane mucosa.

Yun, Kyoung-In; Kim, Dong-Joon

2013-01-01

113

PENETRATING KNIFE IN THE MAXILLARY SINUS: REPORT OF A RARE CASE.  

Directory of Open Access Journals (Sweden)

Full Text Available Presence of foreign bodies in the paranasal sinuses are not common findings.Many cases have been reported so far with foreign bodies like dental amalgam, chopsticks, gutta percha pellets, tooth, glue and even bullets. However, presence of foreign bodies in the maxillary sinus as a result of penetrating trauma is uncommon. Mostof them have been the results of trauma after vehicle accidents, gunshot injuries and assaults. There are two treatment options – endoscopic and open surgical approach for theremoval of sinus foreign bodies. We present a rare case of the transfacial penetrating injuries of maxillary sinus caused by a knife.

Mary Nirmala Suganthakumar

2012-11-01

114

Role of Modified Endoscopic Medial Maxillectomy in Persistent Chronic Maxillary Sinusitis  

Scientific Electronic Library Online (English)

Full Text Available SciELO Brazil | Language: English Abstract in english Introduction Functional endoscopic sinus surgery has a long-term high rate of success for symptomatic improvement in patients with medically refractory chronic rhinosinusitis. As the popularity of the technique continues to grow, however, so does the population of patients with postsurgical persis [...] tent sinus disease, especially in those with a large window for ventilation and drainage. In addition, chronic infections of the sinuses especially fungal sinusitis have a higher incidence of recurrence even though a wide maxillary ostium had been performed earlier. This subset of patients often represents a challenge to the otorhinolaryngologist. Objectives To identify the patients with chronic recalcitrant maxillary sinusitis and devise treatment protocols for this subset of patients. Methods A retrospective review was done of all patients with persistent maxillary sinus disease who had undergone modified endoscopic medial maxillectomy between 2009 and 2012. We studied patient demographics, previous surgical history, and follow-up details and categorized the types of endoscopic medial maxillectomies performed in different disease situations. Results We performed modified endoscopic medial maxillectomies in 37 maxillary sinuses of 24 patients. The average age was 43.83 years. Average follow-up was 14.58 months. All patients had good disease control in postoperative visits with no clinical evidence of recurrences. Conclusion Modified endoscopic medial maxillectomy appears to be an effective surgery for treatment of chronic, recalcitrant maxillary sinusitis.

Ponnaiah, Thulasidas; Venkatraman, Vaidyanathan.

115

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

1997-02-01

116

A study of geometrical theory for maxillary sinus projection in children  

Energy Technology Data Exchange (ETDEWEB)

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.

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

1997-02-01

117

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

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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.

Lee, Sam Sun; You, Dong Soo [Dept. of Oral Radiology, College of Dentistry, Seoul National University, Seoul (Korea, Republic of)

1992-08-15

118

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.

1992-08-01

119

ENT assessment in the integrated management of candidate for (maxillary) sinus lift  

Digital Repository Infrastructure Vision for European Research (DRIVER)

As stated at the 1996 Consensus Conference at Babson College, a (maxillary) sinus lift is a “safe and predictable” procedure for increasing alveolar bone height in the postero-superior alveolar regions in order to allow oral rehabilitation and restore masticatory function by means of the insertion of a dental implant even in the case of an atrophic maxilla. However, the procedure has a well-known impact on the delicate homeostasis of the maxillary sinus: the concomitant presence of system...

Pignataro, L.; Mantovani, M.; Torretta, S.; Felisati, G.; Sambataro, G.

2008-01-01

120

Occurrence of maxillary sinus abnormalities detected by cone beam CT in asymptomatic patients  

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Abstract Background Although cone beam computed tomography (CBCT) images of the maxillofacial region allow the inspection of the entire volume of the maxillary sinus (MS), identifying anatomic variations and abnormalities in the image volume, this is frequently neglected by oral radiologists when interpreting images of areas at a distance from the dentoalveolar region, such as the full anatomical aspect of the MS. The aim of this study was to investigate maxillary sinus abnor...

Rege Inara Carneiro; Sousa Thiago; Leles Cláudio; Mendonça Elismauro

2012-01-01

 
 
 
 
121

Magnetic resonance imaging and computed tomography features of nasopharyngeal carcinomas with maxillary sinus involvement  

International Nuclear Information System (INIS)

Anterior spread of nasopharyngeal carcinoma (NPC) may infiltrate the maxillary sinus. In a prospective study of 114 patients comparing magnetic resonance imaging (MRI) and computed tomography (CT) in the staging of NPC, 10 (9%) patients were noted to have tumour infiltration of the maxillary sinuses. All of the patients except one had associated infiltration of the sphenoidal sinuses indicating advanced local spread. Computed tomography was excellent in outlining the extent of bony erosion and associated soft tissue mass within the antra. T1-weighted images could not demonstrate bony erosions directly although soft tissue extension into the sinuses could be clearly visualized. Both CT and MRI showed good demarcation between tumour and mucosal thickening within the maxillary sinus. Although MRI demonstrated soft tissue involvement more elegantly than CT, it did not appear to offer significantly more information that may affect clinical management. 13 refs., 1 tab., 4 figs

1995-02-01

122

Does hyrax expansion therapy affect maxillary sinus volume? A cone-beam computed tomography report  

International Nuclear Information System (INIS)

The aim of this study was to investigate the initial effects of maxillary expansion therapy with Hyrax appliance and to evaluate the related changes in maxillary sinus volume. Thirty patients (20 females, 10 males; 13.8 years) requiring maxillary expansion therapy, as part of their comprehensive orthodontic treatment, were examined. Each patient had cone-beam computed tomography (CBCT) images taken before (T1) and after (T2) maxillary expansion therapy with a banded Hyrax appliance. Multiplanar slices were used to measure linear dimensions and palatal vault angle. Volumetric analysis was used to measure maxillary sinus volumes. Student t tests were used to compare the pre- and post-treatment measurements. Additionally, differences between two age groups were compared with Mann-Whitney U test. The level of significance was set at p=0.05. Comparison of pre-treatment to post-treatment variables revealed significant changes in the transverse dimension related to both maxillary skeletal and dental structures and palatal vault angle, resulting in a widened palatal vault (p<0.05). Hard palate showed no significant movement in the vertical and anteroposterior planes. Nasal cavity width increased on a mean value of 0.93 mm(SD=0.23, p<0.05). Maxillary sinus volume remained virtually stable. No significant age differences were observed in the sample. Hyrax expansion therapy did not have a significant impact on maxillary sinus volume.

2012-06-01

123

Radiotherapy for cancer of the maxillary sinus, with boost therapy by low dose rate intracavitary irradiation  

Energy Technology Data Exchange (ETDEWEB)

Prognosis of cancer of the maxillary sinus markedly depends on its local control. In order to increase the local control rate for cancer of the maxillary sinus, low dose rate intracavitary irradiation of the maxillary sinus was performed as boost therapy of external irradiation. During the period from January 1975 through September 1982, 87 patients with cancer of the maxillary sinus were treated by radiotherapy at the Department of Radiology, The Jikei University School of Medicine, and 43 out of these 87 cases were treated with intracavitary irradiation as boost therapy of external irradiation. The 3-year and 5-year cumulative survival rates of the 43 cases treated with intracavitary irradiation were 44% and 39%, respectively. The same two rates of the 44 cases without intracavitary irradiation were both 47%. Considering that tumor foci still persisted in the maxillary sinus in almost all of the 43 intracavitary irradiation cases and that 34 of them were of the postero-superior type (according to Oehngren's classification), which generally results in poor prognosis, intracavitary irradiation as boost therapy can be assumed to be one of the effective therapeutic techniques for cancer of the maxillary sinus.

Takayama, Makoto (Jikei Univ., Tokyo (Japan). School of Medicine)

1984-01-01

124

A radiographic study of the experimental lesions in the maxillary sinus  

International Nuclear Information System (INIS)

The purpose of this study was to examine the differences in representation of a globular radiopaque mass on the pantomograms and Waters' views and to compare the efficacy of periapical radiograms, pantomograms and Waters' views in detection of defects on the internal walls of the maxillary sinus. This study was performed with dried human skull. For the study of difference of radiopaque mass shadow in the two views, rubber ball with a diameter of 10mm was used as the experimental lesion. It was placed successively on the internal wall of the anterior, posterior, medial, lateral walls and floor of the maxillary sinus. To examine the detectability of defects for radiographic techniques, defects were formed in the anterior, posterior, medial, lateral walls, and floor of the maxillary sinus. They were formed with 0.5 mm, 0.75 mm, 1.0 mm, 2.0 mm and 3.0 mm sized steel round burs with a slow speed dental handpiece. By subsequently plugging the holes with zinc oxide eugenol paste, radiopaque defects were produced. After that the periapical radiograms, the pantomograms and the Waters' views were taken each and every defect. The obtained results were as follows: 1. Rubber balls placed on each internal wall of maxillary sinus were correctly depicted on the posterior wall and the floor in case of the pantomogram, and on the anterior wall and the medial wall in case of the Waters' view. 2. On the detectability of defects for each radiographic technique, radiolucent defects were detected in different places of each technique. Periapical radiogram could detect 1.0 mm defect on the floor of the maxillary sinus, pantomogram could detect 2.0 mm defect on every internal wall of the maxillary sinus, and Waters' view could detect 3.0 mm defect on the anterior wall of the maxillary sinus. 3. On the detectability of defects for each radiographic technique, radiopaque defects were detected in different places for each technique. Periapical radiogram could clearly detect 0.5 mm defect on the floor of the maxillary sinus, pantomogram could detect 0.5 mm defect on every internal wall of the maxillary sinus, and finally Waters' view could detect 0.5 mm defect on the anterior wall of the maxillary sinus but 0.75 mm defect on the anterior wall, lateral wall, lateral wall and floor of the maxillary sinus. As the result, the periapical radiogram is the most simple and satisfactory method for investigating in the maxillary sinus. The pantomogram is suitable method for screening of changes in the maxillary sinus. And the Waters' view is available for detect of lesion in the anterior wall of the maxillary sinus. For the purpose of accurate diagnosis and evaluation of lesion in the maxillary sinus, these techniques supplement each other.

1994-02-01

125

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.

2008-12-01

126

Dislocation of an upper third molar into the maxillary sinus after a severe trauma: a case report.  

Science.gov (United States)

Dental injuries are common following facial trauma. This article presents a rare injury: the dislocation of a third molar into the maxillary sinus after complex mandibular and maxillary tuberosity fractures. The possible mechanism and clinical treatment are discussed. PMID:17511841

Cai, Heng-Xing; Long, Xing; Cheng, Yong; Li, Xiao-Dan; Jin, Hui-Xi

2007-06-01

127

Morphological study of the maxillary sinus using three-dimensional reconstruction of the tomographic images  

International Nuclear Information System (INIS)

A morphological study of the maxillary sinus using the computerized three-dimensional reconstruction of the tomographic images was made. Materials of this study were 86 adult dry skulls of the Second Department of Oral Anatomy of Fukuoka Dental College. The results were as follows: 1. A tomographic apparatus which could select varius X-ray tube shifts was used. The hypocycloidal shift was the best for the tomography of the maxillary sinus. 2. In the tomographs of the maxillary sinus, the images of some sections in the maximum cross-section area presented real shapes. However, the images of other sections were indistinct and influenced by the shape of the maximum cross-section. 3. Reconstruction of the tomographic images of the maxillary sinus by computer made it easy and precise to recognize the three-dimensional image. 4. The dimensions in the maximum cross-section of the maxillary sinus of the 86 adult dry skulls obtained from the reconstructed three-dimensional images were 4.59 ± 1.26 cm"2 in frontal, 5.21 ± 1.36 cm"2 in transversal and 8.09 ± 1.82 cm"2 in sagittal tomographs. The majority of the skulls were symmetry, and a few were asymmetry in correlation between the right and left side sinuses. 5. According to the reconstructed three-dimensional images the shapes of the maxillary sinus of the 86 adult dry skulls were classified into 10 types in frontal, 4 types in transversal and 8 types in sagittal tomographs. The most familiar shape was triangular in frontal, trapezoidal in sagittal and triangular in transversal tomographs. 6. The dimension and shape of the maxillary sinus had no correlation with the frontal width of the nasal cavity. (author)

1986-01-01

128

A case report of an inverted papilloma infiltrating into maxillary sinus  

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The present study reports a case of inverted papilloma of the nasal cavity and infiltrating into the maxillary sinus. Inverted papilloma is an uncommon and locally aggressive benign tumor of the sinonasal region. The patient, 51-year-old male, presented with unilateral nasal obstruction and periodic swelling on the palate without pain. Enhanced CT scan revealed a heterogeneously enhancing solid mass in the nasal cavity and infiltrating into the right maxillary sinus, as well as an incidental, secondarily infected residual cyst in the periapical area of the right maxillary canine. The sinonasal mass was revealed as an inverted papilloma on histopathologic examination.

Ji, Yong Hwa; Choi, Bo Ram; Huh, Kyung Hoe; Lee, Sam Sun [School of Dentistry, Seoul National University, Seoul (Korea, Republic of); An, Chang Hyeon [Department of Oral and Maxillofacial Radiology, School of Dentistry, Kyungpook National University, Daegu (Korea, Republic of)

2009-06-15

129

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

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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.

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

2010-06-15

130

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.

2010-06-01

131

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)

2006-10-01

132

[A case of malignant melanoma on the left side of the maxillary sinus].  

Science.gov (United States)

The clinical manifestations of the disease lacked specificity,and the clinical symptoms were nasal obstruction, any blood in snivel and slightly swelling pain on face. The neoplasm with unsmooth surface looked taupe and maroon, and was brittle and easy blooding. Paranasal sinus CT:crumbly mass lesion within the shadow filled in the left side of the maxillary sinus,and the sinus stopped up,sinus wall bone was absorptted and thinned, front and rear wall and inner wall bone were boundednessly broken off, knuckled partly to the nasal cavity. Direct reinforcement MRI:in addition to the result of paranasal sinus CT,enhance examination found obviously asymmetrical intensify of the focus. The pathological diagnosis of poatoperation was malignant melanoma on the left side of the maxillary sinus. PMID:24800553

Nian, Wanqing; Wang, Heng; Gao, Qixue

2014-02-01

133

Prospect of cytologic diagnosis for malignant melanoma in the maxillary sinus  

Directory of Open Access Journals (Sweden)

Full Text Available Two cases of malignant melanoma arising in the maxillary sinus are reported. Cytological examination of the solution obtained by local washing through the sinus puncture identified numerous melanoma cells together with melanophages. The cases were then scheduled for well-planned, preoperative treatment. The cytological criteria for diagnosing malignant melanoma are outlined, and the cytological approach is stressed as a valuable diagnostic procedure for early detection of malignant tumors and surveillance of postoperative recurrence, especially in paranasal sinuses.

Nishioka,Keiko

1982-12-01

134

Evaluation of linear tomography accuracy in localization of nasal fossa and maxillary sinus  

Directory of Open Access Journals (Sweden)

Full Text Available Background and Aim: Accurate measurement of bone height and width is essential prior to dental implant placement. The method of surgery as well as, the type and size of implants are determined according to dimensions of the residual bone. The purpose of this study was to evaluate the accuracy of linear tomography in localization of the floor of nasal fossa and maxillary sinus, and to determine the width of maxillary bone at the designated site for implant placement.Materials and Methods: In this test evaluation study, the vertical distances between the alveolar crest and the floor of nasal fossa and the floor of maxillary sinus was measured by the tomographic slices in 12 sites of three dry human skulls. In addition, the width of maxillary bone was measured at the same slices. The skulls were then sectioned through the marked places. Then the radiographic values were compared with the real values of bone sections.Results: After correction of tomographic values by the magnification factor of the unit, the mean absolute measurement error for vertical values at nasal fossa and maxillary sinus area in tomographic slices were 0.28 mm (SD= 0.24 and 1.1 mm (SD= 0.68 respectively. The mean absolute measurement error for maxillary width at the nasal fossa and maxillary sinus area were 0.65 mm (SD= 0.50 and 0.55 mm (SD= 0.45 respectively. 100 % of vertical values at nasal fossa area and 50 % of vertical values at maxillary sinus area were within ± 1 mm error limit. In addition, 50 % of width measurements at nasal fossa area and 83.3 % at maxillary sinus area were within ± 1 mm error limit.Conclusion: The linear tomography is more accurate in height estimation at nasal fossa area and in width estimation at maxillary sinus area. The accuracy of linear tomography in height and width estimation is within acceptable limits at both nasal fossa and maxillary sinus area.

Talaeipour AR.

2007-07-01

135

Importance of tumor origin determination in selecting suitable surgery for treating inverted maxillary sinus papillomas  

International Nuclear Information System (INIS)

We report the clinical outcomes for 28 subjects treated for inverted maxillary sinus papilloma between 2003 and 2007 involving preoperative imaging determination of tumor origin. Tumor origin often determines whether endoscopic endonasal or transmaxillary surgery is to be done. Endoscopic endonasal surgery was conducted for tumors originating in the posterior maxillary sinus in 17 patients and endoscopic transmaxillary surgery for tumors originating in the anterior maxillary sinus in 11 patients. Recurrence was seen in only 1 whose tumor originated in the superior sinus wall and had spread wide by to the lateral and posterior walls. Endoscopic endonasal resection was initially conducted and the recurrent tumor extracted by endoscopic transmaxillary surgery. The tool essential for successful tumor removal is complete surgical resection so as our study demonstrates, the preoperative determination of tumor origin is important in selecting of the most appropriate surgical procedure. (author)

2009-12-01

136

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

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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.

Jun, Yun Hoa; Cho, Bong Hae [Department of Oral and Maxillofacial Radiology, College of Dentistry, Pusan National University, Pusan (Korea, Republic of)

2009-06-15

137

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.

2009-06-01

138

Myxoid Type of Malignant Fibrous Histiocytoma of the Maxillary Sinus: A Case Report  

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Full Text Available Introduction: Myxofibrosarcoma was originally described as the myxoid variant of Malignant Fibrous Histiocytoma (MFH, a high-grade and aggressive sarcoma, which is very uncommon in the head and neck region, with about 100 cases reported up to now. MFH occurring in the maxillary sinus is so rare that only 23 cases have been reported. We hereby report a case of myxofibrosarcoma in the maxillary sinus. Case Report: The case was a 54-year-old male with symptoms of toothache in the right posterior maxillary teeth, a swelling adjacent to maxillary molar region and symptoms of chronic maxillary sinusitis. In clinical examination, the teeth were sensitive to percussion and palpation, but no caries and restoration was detected on his molar teeth. He was suffering from local pain and tenderness over his midface and mild fever, fatigue and some nonspecific vague pain. CT scan showed a mass lesion involving right nasal cavity, maxillary and ethmoidal sinuses. A low-grade malignancy arising from the right maxillary sinus was highly suspected. A surgery was done to remove the mass. The histological and immunohistochemical studies proved the diagnosis of myxoid variant of Malignant Fibrous Histiocytoma. Therefore radiotherapy and chemotherapy was started for the patient but six months later the symptoms returned and CT scan showed a right maxillary and ethmoidal mass that extended to base of the skull. Maxillectomy and ethmoidectomy were performed for the patient, but 2 months later he died because of the extension of the tumor, which confirmed the necessity of early diagnosis. Conclusion: Amplified radical surgery is the first choice of treatment. The second surgery has special value to the recurrent patients. Radiotherapy alone or chemotherapy alone is not effective to MFH of head and neck region

Amir Hossein Jafarian

2011-04-01

139

Evaluation of the maxillary sinus and adjacent structures on the orthopantomograph to the head positions  

International Nuclear Information System (INIS)

The purpose of this study was to evaluate the utilization of the orthopantomogrph as a diagnostic aid to observe maxillary sinus and adjacent structures. For achieving this goal, the lead plates were attached to the five walls of the maxillary sinus of a human dry skull. The dry skull was placed in fourteen different positions ; standard, 20 mm forward, 20 mm backward, 10 degree upward, 10 degree downward, 20 mm lateral, forward and upward, forward and lateral, backward and upward, backward and downward, backward and lateral, upward and lateral, downward and lateral position. The obtained results were as follows: 1. The image of the medial wall was observed very differently according to the head positions. 2. The image of the anterior wall was observed at medial third to half of the maxillary sinus in each head position. 3. The image of the posterior wall was always observed at lateral third of the maxillary sinus in all head positions and more obviously in the downward-lateral position. 4. The image of the superior wall was observed at the inferior third to half of the orbit in each head position. 5. The image of the inferior wall was always observed at the inferior third of maxillary sinus in all head positions and observed more obviously in the standard and downward-lateral positions. 6. The image of the zygomatic process, zygomatic arch and zygomaticotemporal suture were observed very well in the downward-lateral position.

1992-08-01

140

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

Scientific Electronic Library Online (English)

Full Text Available SciELO Brazil | Language: English Abstract in english 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.

Martins, Renato Jahjah Cunha; Lederman, Henrique Manoel.

 
 
 
 
141

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.

2012-12-01

142

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.

1984-11-01

143

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

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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 puede 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.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 complication 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.

Karen Vanessa Alvayero Mejía

2012-12-01

144

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

Scientific Electronic Library Online (English)

Full Text Available SciELO Cuba | Language: Spanish Abstract in spanish 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.

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

145

The effect of a middle meatal antrostomy on nitric oxide ventilation in the maxillary sinus.  

Science.gov (United States)

The effects of middle meatal antrostomy (MMA) on air and nitric oxide exchange in the human maxillary sinus were quantified using the computational fluid dynamics technique. One full period of respiration was considered in the anatomically correct numerical domain. The simulation results showed that MMA did not cause any noticeable change in the velocity or pressure fields at a global level but induced local velocity as high as 0.21m/s inside the maxillary. Therefore, enlargement of the ostium area by MMA allows inspiratory and expiratory nasal airflow to induce significant convective flows in the sinus, which in turn enhances gas exchange dramatically. At the end of the inspiration phase, NO concentration in the maxillary sinus decreased to about 54% of the initial value. NO concentration decreased only by about 30% during the expiration phase. This difference in reduction rate is thought to result from the difference in airflow velocity in the extended ostium during inspiration vs. expiration. PMID:24333403

Chung, Seung-Kyu; Jo, Gyehwan; Kim, Sung Kyun; Na, Yang

2014-02-01

146

Hydrodynamic ultrasonic maxillary sinus lift: Review of a new technique and presentation of a clinical case  

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Objectives: Placing implants in the posterior maxillary area has the drawback of working with scarce, poor quality bone in a significant percentage of cases. Numerous advanced surgical techniques have been developed to overcome the difficulties associated with these limitations. Subsequent to reports on the elevation of the maxillary sinus through the lateral approach, there were reports on the use of the crestal approach, which is less aggressive but requires a minimal amount of bone. Furthe...

2012-01-01

147

Dentigerous cyst with an impacted third molar obliterating complete maxillary sinus.  

Science.gov (United States)

Dentigerous cyst is the most commonly occurring odontogenic cyst after radicular cyst and accounts for 15% of all true cysts in the jaws. The cyst is more common in mandible than in maxilla. The dentigerous cyst is commonly associated with impacted mandibular third molars. In maxilla, the incidence is rare. Dentigerous cyst in maxillary sinus in association with an impacted third molar is an uncommon entity. We present a case of dentigerous cyst associated with an impacted third molar, completely obliterating the maxillary sinus in a 28-year-old female. PMID:23649075

Asnani, Sanjay; Mahindra, Uma; Rudagi, B M; Kini, Yogesh; Kharkar, Viraj R

2012-01-01

148

The ability of panoramic radiography in assessing maxillary sinus inflammatory diseases  

Energy Technology Data Exchange (ETDEWEB)

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.

Nah, Kyung Soo [Department of Dental Radiology, College of Dentistry, Pusan National University, Pusan (Korea, Republic of)

2008-12-15

149

Prospect of cytologic diagnosis for malignant melanoma in the maxillary sinus  

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Two cases of malignant melanoma arising in the maxillary sinus are reported. Cytological examination of the solution obtained by local washing through the sinus puncture identified numerous melanoma cells together with melanophages. The cases were then scheduled for well-planned, preoperative treatment. The cytological criteria for diagnosing malignant melanoma are outlined, and the cytological approach is stressed as a valuable diagnostic procedure for early detection of malignant tumors ...

Nishioka, Keiko; Matsumoto, Noriaki; Masuda, Yu; Ohmori, Yukiko; Tanaka, Toshio

1982-01-01

150

Treatment results of maxillary sinus carcinoma; A retrospective study  

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From 1967 through 1983, a total of 617 patients with maxillary sinus carcinoma were treated with radiation therapy. An overall actuarial 5-year survival rate was 36.2%. According to chronological groups, it was 24.1% in 217 patients treated during the period 1967-1971, 40.0% in 155 patients during the period 1972-1975, and 44.6% in 245 patients during the period 1976-1983. According to T staging, an actuarial 5-year local control rate was 60.0% for T1 (9 patients), 43.1% for T2 (181), 31.7% for T3 (246), and 19.2% for T4 (181). According to initial treatment, the patients were divided into four groups -- Group A treated with radiation therapy (RT) alone, Group B with RT combined with intra-arterial infusion of 5-fluorouracil (RT+5-FU), Group C with RT combined with surgical removal through curettage (RT+OP), and Group D with multidisciplinary treatment consisting of RT, 5-FU regional infusion, and curettage (RT+5-FU+OP). For T2, the 5-year actuarial local control rate was 25.5% in Group A (51 patients), 45.0% in Group B (55), 58.2% in Group C (23), and 51.5% in Group D (52). The corresponding figures for T3 were 13.2% in Group A (85 patietns), 33.6% in Group B (78), 52.3% in Group C (31), and 45.9% in Group D (52); and those for T4 were 7.6% in Group A (77 patients), 27.2% in Group B (52), 17.8% in Group C (20), and 31.5% in Group D (32). Concomitant RT and 5-FU regional infusion and/or curettage remarkably improved the local control rate. No significant additive effect of 5-FU infusion on T2 and T3 was observed, nor was any usefulness of curettage for T4 in Group B observed. A dose of TDF 90-99 was beneficial for local control rate. The use of 5-FU might reduce irradiation doses optimal to radiation therapy. (N.K.).

Kubo, Kazuko; Furukawa, Souhei; Fuchihata, Hajime (Osaka Univ. (Japan). School of Dentistry); Ikeda, Hiroshi; Masaki, Norie; Sakai, Shun-ichi

1990-07-01

151

Preoperative roentgendiagnostic of the naso-maxillary sinuses and operative findings  

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The preoperative roentgenmorphology of the nasomaxillary sinuses was compared with the intraoperative findings. The dates of 285 patientes were evaluated. For the maxillary sinus there was correspondency in 85.7%. There were no differences in the cases explored with tomography. For the ethmoidal sinus there was correspondency in 89.5% and for the frontal sinus in 82.7%. The importance of the preoperative roentgenexamination with the standard-exposure in occipitomental projection was less the demonstration of the inflammation than of other findings. The sphenoidal sinus was best explored by tomography. The standardprojection did not always allow the differentiation of cystes, polypes and mucoceles in dieseased sinuses. The tomography was superior to the standardprojection. In tumorpatients the accompanying inflammation could not be separated from tumorinfiltration with certainty.

Vogel, H.; Probandt, G.; Herberhold, C.; Leitner, H.; Hoermann, K.

1982-03-01

152

Preoperative roentgendiagnostic of the naso-maxillary sinuses and operative findings  

International Nuclear Information System (INIS)

The preoperative roentgenmorphology of the nasomaxillary sinuses was compared with the intraoperative findings. The dates of 285 patientes were evaluated. For the maxillary sinus there was correspondency in 85.7%. There were no differences in the cases explored with tomography. For the ethmoidal sinus there was correspondency in 89.5% and for the frontal sinus in 82.7%. The importance of the preoperative roentgenexamination with the standard-exposure in occipitomental projection was less the demonstration of the inflammation than of other findings. The sphenoidal sinus was best explored by tomography. The standardprojection did not always allow the differentiation of cystes, polypes and mucoceles in dieseased sinuses. The tomography was superior to the standardprojection. In tumorpatients the accompanying inflammation could not be separated from tumorinfiltration with certainty. (orig.)

1982-01-01

153

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

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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.

Reinhilde Jacobs

2010-01-01

154

Endoscopic surgery of the maxillary sinuses in oral and maxillofacial surgery practice: a literature review  

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Full Text Available Recently, a number of studies reported results of endoscopic surgery for treatment of odontogenic diseases of the maxillary sinuses and for sinus augmentation procedures. Therefore, the aim of this article was to review the literature data and to evaluate the level of current scientific evidence on this issue. Four retrospective and one prospective studies regarding functional endoscopic sinus surgery (FESS for odontogenic sinusitis were identified. Also, several case series of endoscope – assisted removal of odontogenic cysts and tumors involving the maxillary sinus were published. Finally, five studies regarding endoscope –controlled sinus augmentation procedures were analyzed. From available literature it seems that FESS for treatment of odontogenic sinusitis is a safe and predictable treatment option. Although scientific evidence is low, this is a clinically well documented procedure with low incidence of complications. In contrast to this, endoscopic surgery for odontogenic cysts and tumors is documented only in limited case series reports. Regarding treatment of implant – related complications, endoscopic surgery has a potential to provide effective treatment of those cases. On the other hand, endoscopic sinus augmentation needs scientific evidence of superiority to conventional techniques before it can be introduced into clinical practice.

Miroslav Andric

2010-08-01

155

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

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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.

Saeedeh KhajehAhmadi

2013-01-01

156

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

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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.

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

2010-01-01

157

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

DEFF Research Database (Denmark)

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.

de Freitas, Rubens Moreno; Spin-Neto, Rubens

2013-01-01

158

Late temporal lobe necrosis after conventional radiotherapy for carcinoma of maxillary sinus.  

Science.gov (United States)

Cerebral radiation necrosis is a serious late complication after conventional radiotherapy that can present with focal neurologic deficits or with more generalized signs and symptoms of increased intracranial pressure, depending on the location. The incidence and severity of radionecrosis are dose-volume dependent. We report a case of cerebral radiation necrosis 5 years after radiotherapy for a maxillary sinus carcinoma. PMID:22246565

Kanakamedala, Madhava R; Mahta, Ali; Liu, Jianlin; Kesari, Santosh

2012-12-01

159

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)

2009-09-01

160

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.

1999-02-01

 
 
 
 
161

Measurement of maxillary sinus volume and available alveolar bone height using computed tomography  

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To aid in determining the volume of graft bone required before a maxillary sinus lift procedure and compare the alveolar bone height measurements taken by panoramic radiographs to those by CT images. Data obtained by both panoramic radiographs and CT examination of 25 patients were used in this study. Maxillary sinus volumes from the antral floor to heights of 5 mm, 10 mm, 15 mm, and 20 mm , were calculated. Alveolar bone height was measured on the panoramic images at each maxillary tooth site and corrected by magnification rate (PBH). Available bone height (ABH) and full bone height (FBH) was measured on reconstructed CT images. PBH was compared with ABH and FBH at the maxillary incisors, canines, premolars, and molars. Volumes of the inferior portion of the sinuses were 0.55 {+-} 0.41 cm{sup 3} for 5 mm lifts, 2.11 {+-} 0.68 cm{sup 3} for 10 mm, 4.26 {+-} 1.32 cm{sup 3} for 15 mm, 6.95 {+-} 2.01 cm{sup 3} for 20 mm. For the alveolar bone measurement, measurements by panoramic images were longer than available bone heights determined by CT images at the incisor and canine areas, and shorter than full bone heights on CT images at incisor, premolar, and molar areas (p<0.001). In bone grafting of the maxillary sinus floor, 0,96 cm{sup 3} or more is required for a 5 mm - lift, 2.79 cm{sup 3} or more for a 10 mm - lift, 5.58 cm{sup 3} or more for a 15 mm - lift, and 8.96 cm{sup 3} or more for a 20 mm - lift. Maxillary implant length determined using panoramic radiograph alone could result in underestimation or overestimation, according to the site involved.

Lee, Jae Hak; Han, Won Jeong; Choi, Young Hi; Kim, Eun Kyung [Dankook University College of Medicine, Seoul (Korea, Republic of)

2003-03-15

162

Features of inflammatory pseudotumor in the maxillary sinus on CT and MRI  

International Nuclear Information System (INIS)

Objective: To explore the features of inflammatory pseudotumor in the maxillary sinus on CT and MRI. Methods: The CT and MRI data of 8 patients with histology-proven inflammatory pseudotumor in the maxillary sinus were retrospectively analyzed. All 8 patients underwent CT scans and 7 of them also underwent MRI examinations. In addition, the time-intensity curve (TIC) of dynamic contrast-enhanced (DCE)MR imaging were analyzed in 3 patients. Results: Two cases had lesions in the left maxillary sinus, while the others showed lesions in the right maxillary sinus. All the lesions showed irregular shape with well-defined margins in 5 cases and hazy margins in 3 cases. The mean maximum diameter of the lesions was 51 mm (ranged from 29 mm to 72 mm). On non-enhanced CT, the lesions were isodense to gray matter in 6 and slightly hypodense in 2 patients. Only 2 patients had post-contrast CT with moderate enhancement of their lesions. The lesions caused adjacent bony absorption and destruction with residual bony sclerosis. On MR T1WI, inflammatory pseudotumor showed hypointense in 2 patients and isointense in and isointense in 1 patients. Inflammatory pseudotumor showed heterogeneously slight contrast enhancement in 2 cases and moderate enhancement in 5 cases. The TIC showed a steady enhancement pattern in 4, orbit in 4, and cheek in 3 cases. Six patients underwent follow-up for 2-5 years after surgery and 2 of them were found to have recurrence. In comparison to CT, MRI was proved to show the extent of the lesions more clearly. Conclusions Bony destruction with sclerosis and hypointense signal on MR T2WI are typical manifestations of inflammatory pseudotumor in the maxillary sinus. Combined CT and MRI can provide clinicians with more comprehensive information for the diagnosis, therapy, and follow-up of these lesions. (authors)

2010-03-01

163

Mucocele del seno maxilar post-traumático Post-traumatic mucocele of the maxillary sinus  

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Full Text Available Los mucoceles de los senos paranasales son lesiones benignas pero con un considerable potencial destructivo por la reabsorción ósea que pueden generar. La localización en el seno maxilar es muy poco frecuente así como el origen postraumático. Presentamos el caso de un mucocele de seno maxilar tras 28 años después de un traumatismo facial. Analizamos la etiopatogenia, el diagnóstico y el tratamiento de este tipo de lesiones.Mucoceles of the paranasal sinuses are benign lesions but they can be destructive because they cause bone resorption. The location in a maxillary sinus and a traumatic origin are uncommon. We report a case of mucocele of the maxillary sinus 28 years after facial trauma. We analyzed the etiopathogenesis, diagnosis, and treatment of this type of lesions.

E. Charro-Huerga

2009-02-01

164

Mucocele del seno maxilar post-traumático / Post-traumatic mucocele of the maxillary sinus  

Scientific Electronic Library Online (English)

Full Text Available SciELO Spain | Language: Spanish Abstract in spanish Los mucoceles de los senos paranasales son lesiones benignas pero con un considerable potencial destructivo por la reabsorción ósea que pueden generar. La localización en el seno maxilar es muy poco frecuente así como el origen postraumático. Presentamos el caso de un mucocele de seno maxilar tras 2 [...] 8 años después de un traumatismo facial. Analizamos la etiopatogenia, el diagnóstico y el tratamiento de este tipo de lesiones. Abstract in english Mucoceles of the paranasal sinuses are benign lesions but they can be destructive because they cause bone resorption. The location in a maxillary sinus and a traumatic origin are uncommon. We report a case of mucocele of the maxillary sinus 28 years after facial trauma. We analyzed the etiopathogene [...] sis, diagnosis, and treatment of this type of lesions.

E., Charro-Huerga; J., Ferreras Granado; I., Vázquez Mahía; J.L., López-Cedrún.

165

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)

2010-12-01

166

LYMPHANGIOMA OF THE MAXILLARY SINUS - A RARE CASE REPORT  

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Full Text Available Lymphangiomas are benign hamartomas of the lymphatic vessels. They arecongenital malformations that are usually present at birth or diagnosed as early as twoyears of age. Though 75% of lymphangiomas occur in head and neck region, itsoccurrence in the maxillary antrum is a very rare entity. Very few cases have beenreported in the literature so far. We report a case of lymphangioma of the maxillarysinus in a 29 year old male patient which was discovered as an accidental finding duringopen reduction of a maxillary complex fracture. Complete surgical excision was donewith no reports of recurrence.

H. Thamizchelvan

2013-07-01

167

Benign osteoblastoma of maxillary sinus: A rare presentation  

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Benign osteoblastoma of paranasal sinuses is a rare tumor of the 2nd decade of life with only few cases reported till date. It arises most commonly from the ethmoid sinus and present as an intra-nasal mass leading to broadening of the nasal bridge. Here we present a case of benign osteoblastoma in a 8 year old girl presenting with a large intranasal mass seen through nostril and leading to facial deformity.

Jaswal, Abhishek; Jana, Avik Kumar; Sikder, Biswajit; Jana, Utpal; Nandi, Tapan Kumar

2007-01-01

168

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.

2003-09-01

169

Occurrence of maxillary sinus abnormalities detected by cone beam CT in asymptomatic patients  

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Full Text Available Abstract Background Although cone beam computed tomography (CBCT images of the maxillofacial region allow the inspection of the entire volume of the maxillary sinus (MS, identifying anatomic variations and abnormalities in the image volume, this is frequently neglected by oral radiologists when interpreting images of areas at a distance from the dentoalveolar region, such as the full anatomical aspect of the MS. The aim of this study was to investigate maxillary sinus abnormalities in asymptomatic patients by using CBCT. Methods 1113 CBCT were evaluated by two examiners and identification of abnormalities, the presence of periapical lesions and proximity to the lower sinus wall were recorded. Data were analyzed using descriptive statistics, chi-square tests and Kappa statistics. Results Abnormalities were diagnosed in 68.2% of cases (kappa = 0.83. There was a significant difference between genders (p Conclusions Abnormalities in maxillary sinus emphasizes how important it is for the dentomaxillofacial radiologist to undertake an interpretation of the whole volume of CBCT images.

Rege Inara Carneiro

2012-08-01

170

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

Science.gov (United States)

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 retros...

K. D. Smith N. S. Norton P. C. Edwards T. S. Saini

2010-01-01

171

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

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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 muco...

Smith, Kyle D.; Edwards, Paul C.; Saini, Tarnjit S.; Norton, Neil S.

2010-01-01

172

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

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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 thickeni...

Smith, Kyle D.; Edwards, Paul C.; Saini, Tarnjit S.; Norton, Neil S.

2010-01-01

173

Aberrant Anatomical Variation of Maxillary Sinus Mimicking Periapical Cyst: A Report of Two Cases and Role of CBCT in Diagnosis  

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Most periapical lesions are associated with microorganisms from infected root canal systems. Maxillary sinus can pose a diagnostic dilemma radiographically because of its anatomical variation which can mimic a periapical pathosis. The aim of this study was to describe two cases of aberrant anatomical variation of the maxillary sinus that presented radiographic similarities to a periapical cyst in order to call the attention of clinicians to the fact that several different diseases are able to...

Sekerci, Ahmet Ercan; Sisman, Yildiray; Etoz, Meryem; Bulut, Duygu Goller

2013-01-01

174

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

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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.

1995-08-01

175

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.

2002-03-01

176

Hydrodynamic ultrasonic maxillary sinus lift: Review of a new technique and presentation of a clinical case  

Science.gov (United States)

Objectives: Placing implants in the posterior maxillary area has the drawback of working with scarce, poor quality bone in a significant percentage of cases. Numerous advanced surgical techniques have been developed to overcome the difficulties associated with these limitations. Subsequent to reports on the elevation of the maxillary sinus through the lateral approach, there were reports on the use of the crestal approach, which is less aggressive but requires a minimal amount of bone. Furthermore, it is more sensitive to operator technique, as the integrity of the sinus membrane is checked indirectly. The aim of this paper is to review the technical literature on minimally invasive sinus lift and compare the advantages of different techniques with Intralift™, a new technique. Study Design: The present study is a review of techniques used to perform minimally invasive sinus lift published in Cochrane, Embase and Medline over the past ten years and the description of the crestal sinus lift technique based on minimally invasive piezosurgery, with the example of a case report. Results: Only eight articles were found on minimally invasive techniques for sinus lift. The main advantage of this new technique, Intralift, is that it does not require a minimum amount of crestal bone (indeed, the smaller the width of the crestal bone, the better this technique is performed). The possibility of damage to the sinus membrane is minimised by using ultrasound based hydrodynamic pressure to lift it, while applying a very non-aggressive crestal approach. Conclusions: We believe that this technique is an advance in the search for less traumatic and aggressive techniques, which is the hallmark of current surgery. Key words: Sinus lift, surgical technique, minimally invasive surgery, ultrasound surgery.

Romero-Ruiz, Manuel M.; Torres-Lagares, Daniel; Perez-Dorao, Beatriz; Wainwright, Marcel; Abalos-Labruzzi, Camilo; Gutierrez-Perez, Jose L.

2012-01-01

177

Squamous cell cancer of the maxillary sinus in Hokkaido, Japan: a case-control study.  

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A case-control study of squamous cell cancer of the maxillary sinus was performed in Hokkaido with 106 cases and 212 controls matched for sex, age (within five years), and residence (same health centre region). Univariate analyses showed that a history of chronic sinusitis (relative risk, RR = 3.2), nasal polyps (RR = 5.0), an occupational history of being a carpenter, joiner, furniture worker, or other woodworker (RR = 2.9), and current or past smoking habits (RR = 3.0) were statistically si...

Fukuda, K.; Shibata, A.; Harada, K.

1987-01-01

178

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

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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.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 it 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.

M. Bragado Novel

2010-12-01

179

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)

Full Text Available SciELO Spain | Language: Spanish Abstract in spanish 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.

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

180

Measurement of maxillary sinus volume and available alveolar bone height using computed tomography  

International Nuclear Information System (INIS)

To aid in determining the volume of graft bone required before a maxillary sinus lift procedure and compare the alveolar bone height measurements taken by panoramic radiographs to those by CT images. Data obtained by both panoramic radiographs and CT examination of 25 patients were used in this study. Maxillary sinus volumes from the antral floor to heights of 5 mm, 10 mm, 15 mm, and 20 mm , were calculated. Alveolar bone height was measured on the panoramic images at each maxillary tooth site and corrected by magnification rate (PBH). Available bone height (ABH) and full bone height (FBH) was measured on reconstructed CT images. PBH was compared with ABH and FBH at the maxillary incisors, canines, premolars, and molars. Volumes of the inferior portion of the sinuses were 0.55 ± 0.41 cm3 for 5 mm lifts, 2.11 ± 0.68 cm3 for 10 mm, 4.26 ± 1.32 cm3 for 15 mm, 6.95 ± 2.01 cm3 for 20 mm. For the alveolar bone measurement, measurements by panoramic images were longer than available bone heights determined by CT images at the incisor and canine areas, and shorter than full bone heights on CT images at incisor, premolar, and molar areas (p3 or more is required for a 5 mm - lift, 2.79 cm3 or more for a 10 mm - lift, 5.58 cm3 or more for a 15 mm - lift, and 8.96 cm3 or more for a 20 mm - lift. Maxillary implant length determined using panoramic radiograph alone could result in underestimation or overestimation, according to the site involved.

2003-03-01

 
 
 
 
181

Specific features of the maxillary sinuses imaging on orthopantomograms of various types: an experimental study  

International Nuclear Information System (INIS)

Presents the results of experimental study of image distortions emerging in various methods of obtaining panoramic sonograms of the maxillary sinuses. Direct panoramic sonograms obtained with the OP-6 Sonarc orthopantomographer were found to give the most objective sizes of the intracavitary formations and their sites. The bottom of the orbit is detectable only on such sonograms. Inaccurate positioning of the head involve image distortions

1993-01-01

182

What are the advantages of the endoscopic canine fossa approach in treating maxillary sinus aspergillomas?  

Science.gov (United States)

Aspergilloma of the maxillary sinus is a non-invasive mycotic infection of the immunocompetent host. Nowadays its treatment remains surgical removal, and endoscopic endonasal middle meatus antrostomy is retained as the most popular approach. In our experience, a complementary endoscopic canine fossa approach is often needed to achieve a complete resection of the fungus ball. This fact led us to ask ourselves if an isolated endoscopic canine fossa approach had any advantages over the endonasal middle meatus antrostomy. In this paper we retrospectively analyse the results of the surgical treatment of 31 patients presenting maxillary sinus aspergillomas. These patients were all operated between January 1997 and January 2003 in our Otolaryngology Department. They were divided in three groups. Group A included 10 patients operated through an endonasal middle meatotomy only, group B included 9 patients who were operated through a combined approach (endonasal middle meatus antrostomy and endoscopic canine fossa approach), and group C included 12 patients who were operated through an endoscopic canine fossa approach alone. No recurrences were noted in any group, but in group B three patients presented mild complications like persistent purulent discharge through the meatotomy and nasal crusting. The endoscopic canine fossa approach offers several advantages over other techniques. These include an optimal visualization of all maxillary sinus walls and recesses, the possibility of performing the procedure under local anaesthesia and on an outpatient basis, the preservation of the anatomy and physiology of the natural maxillary ostium and an easy removal of the eventual foreign bodies of dental origin in the sinusal cavity that could favourite the development of an aspergilloma. PMID:15626257

Chobillon, Marcos Alejandro Jiménez; Jankowski, Roger

2004-12-01

183

A case of radiation retinopathy following radiation for maxillary sinus carcinoma  

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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)

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

1996-07-01

184

Carcinoma of the maxillary sinus with eosinophilia. Report of a case.  

Science.gov (United States)

A patient with carcinoma of the maxillary sinus presented with a blood eosinophilia and infiltration of eosinophilic leukocytes into the tumor tissue. Immediately after cancer therapy with intraarterial infusion of 5-fluorouracil into the superficial temporal artery, necrotomy and resection of the maxilla including radical neck dissection, the number of eosinophilic leukocytes was suddenly decreased and thereafter a transient increase in blood eosinophilic leukocyte count was observed. In this communication, a tentative mechanism for these events is suggested. PMID:6792096

Sato, M; Yoshida, H; Yanagawa, T; Yura, Y; Sugi, M; Hamada, S; Miyazaki, T

1981-02-01

185

Mucoceles in post-operative maxillary sinuses: CT and MR findings  

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This study describes the CT and MR findings of mucoceles occurred in the post-operative maxillary sinuses. CT and/or MR of 19 maxillary mucoceles in 16 patients who had been operated by Caldwell-Luc procedure were reviewed. CT scans were performed after contrast enhancement in axial and coronal planes with 5mm thickness. Three cases were studied with a 2.0 T or 0.5 T MRI, which demonstrated multi-compartment lesions. The lesions were bilateral in 3 cases. Compartmentalization of the antral cavity was seen in 7 out of 19 involved sinuses. Surgical bone defect of the anterior wall was the most frequent route of extension (11 cases) and extension into the infratemporal fossa with erosion of posterolateral wall was seen in 7 lesions. In 6 cases, the lesion involved orbit. The expansile and erosive bone changes were localized in every case. In one case with multi-compartment lesion, both T1-and T2-weighted MR images showed different signal intensities in each compartment which represented different protein concentration. Post-operative maxillary mucocele showed CT findings of localized erosion and bulging most frequently at the anterior wall in which the bone windows were made during he previous surgery. Post-operative compartmentalization of maxillary antrum may cause eccentric expansion of mucocele and each compartment may show different signal intensities on MR.

Han, Moon Hee; Chang, Kee Hyun; Min, Yang Gi; Yeon, Kyung Mo; Han, Man Chung [Seoul National University College of Medicine, Seoul (Korea, Republic of)

1994-03-15

186

Mucoceles in post-operative maxillary sinuses: CT and MR findings  

International Nuclear Information System (INIS)

This study describes the CT and MR findings of mucoceles occurred in the post-operative maxillary sinuses. CT and/or MR of 19 maxillary mucoceles in 16 patients who had been operated by Caldwell-Luc procedure were reviewed. CT scans were performed after contrast enhancement in axial and coronal planes with 5mm thickness. Three cases were studied with a 2.0 T or 0.5 T MRI, which demonstrated multi-compartment lesions. The lesions were bilateral in 3 cases. Compartmentalization of the antral cavity was seen in 7 out of 19 involved sinuses. Surgical bone defect of the anterior wall was the most frequent route of extension (11 cases) and extension into the infratemporal fossa with erosion of posterolateral wall was seen in 7 lesions. In 6 cases, the lesion involved orbit. The expansile and erosive bone changes were localized in every case. In one case with multi-compartment lesion, both T1-and T2-weighted MR images showed different signal intensities in each compartment which represented different protein concentration. Post-operative maxillary mucocele showed CT findings of localized erosion and bulging most frequently at the anterior wall in which the bone windows were made during he previous surgery. Post-operative compartmentalization of maxillary antrum may cause eccentric expansion of mucocele and each compartment may show different signal intensities on MR

1994-03-01

187

Maxillary sinus swelling in a child: clinical dilemma  

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A 7-year-old girl had presented with right cheek swelling noted 3 months earlier. It was slowly progressive. Swelling was well defined, non-tender, smooth, firm in consistency and measured 4×4 cm. Intraoral examination revealed no missing teeth. Permanent teeth – central incisors (upper and lower), primary lateral incisor, canine and first and second molar were present. X-ray paranasal sinuses showed well-defined unilocular radiolucency with a thin sclerotic border enclosing permanent firs...

Goyal, Rashmi; Kumar, Alok; Saxena, Dipti; Biswas, Rakesh

2010-01-01

188

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

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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.

Zhen-yu SUN

2011-09-01

189

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)

Full Text Available SciELO Chile | Language: Spanish Abstract in spanish 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

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

190

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  

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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 exhalado 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 sanosIntroduction. 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 substantially 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

Carla Napolitano V

2007-08-01

191

The Study of the Malignant Tumors of the Maxillary Sinus by Computed Tomography  

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CT findings of proven 25 malignant tumors of the maxillary sinus were retrospectively analyzed to be of help in the diagnosis and treatment. The results were as follow: 1. Average age was 54 years old, and eighteen were males and seven were females with a ratio of 2.6:1. 2. The most common histopathologic feature was squamous cell carcinoma (19 cases) and others were two cases of adenoid cystic carcinoma, one case of malignant fibrous histiocytoma, mucoepidermoid tumor, histiocytic lymphoma, unidentified malignant tumor. 3. CT findings were sinus opacification (4%), soft tissue mass (92%), low densities within soft tissue mass (44%), air densities within soft tissue mass (24%), osteosclerosis (4%), bone destruction (92%), bone displacement (32%), fat plane obliteration(76%). 4. CT in the malignant maxillary sinus tumors approved the value in evaluation of tumor extension to nasal cavity, ethmoid sinus, orbit, infratemporal fossa, pterygopalatine fossa, pterygoid fossa, pterygoid muscle, cheek skin and intracranial cavity. 5. Twenty four cases (96%) were stage III, stage IV according to AJCC TNM classification. 6. Bone findings were destruction, displacement, sclerosis and most frequent site of bone destruction was the medial wall of the antrum (92%). 7. Tumor growth pattern showed destructive pattern in 18 cases (72%), and squamous cell carcinoma showed destructive pattern. (p<0.05).

Dan, Jung Bae; Park, Tae Won [Dept. of Oral Radiology, College of Dentistry, Seoul National University, Seoul (Korea, Republic of)

1989-11-15

192

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

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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 ridge<4mm were included in the study. Seventy-seven implants (49 Staumann®, 24 Replace® and 4 Ankylos®) 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

Sakka, Salah; Krenkel, Christian

2011-04-01

193

The Study of the Malignant Tumors of the Maxillary Sinus by Computed Tomography  

International Nuclear Information System (INIS)

CT findings of proven 25 malignant tumors of the maxillary sinus were retrospectively analyzed to be of help in the diagnosis and treatment. The results were as follow: 1. Average age was 54 years old, and eighteen were males and seven were females with a ratio of 2.6:1. 2. The most common histopathologic feature was squamous cell carcinoma (19 cases) and others were two cases of adenoid cystic carcinoma, one case of malignant fibrous histiocytoma, mucoepidermoid tumor, histiocytic lymphoma, unidentified malignant tumor. 3. CT findings were sinus opacification (4%), soft tissue mass (92%), low densities within soft tissue mass (44%), air densities within soft tissue mass (24%), osteosclerosis (4%), bone destruction (92%), bone displacement (32%), fat plane obliteration(76%). 4. CT in the malignant maxillary sinus tumors approved the value in evaluation of tumor extension to nasal cavity, ethmoid sinus, orbit, infratemporal fossa, pterygopalatine fossa, pterygoid fossa, pterygoid muscle, cheek skin and intracranial cavity. 5. Twenty four cases (96%) were stage III, stage IV according to AJCC TNM classification. 6. Bone findings were destruction, displacement, sclerosis and most frequent site of bone destruction was the medial wall of the antrum (92%). 7. Tumor growth pattern showed destructive pattern in 18 cases (72%), and squamous cell carcinoma showed destructive pattern. (p<0.05).

1989-11-01

194

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

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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.

Kyle D. Smith

2010-01-01

195

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

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Full Text Available 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 our analysis suggestthat multimodal therapy may become the mainstay treatment for adult rhabdomyosarcoma ofthe maxillary sinus. We believe that adequate surgical procedures, planned radiotherapy,aggressive chemotherapeutic agents and the best supportive care for complications mayimprove the prognosis of patients with this disease.

Tsung-Han Wu

2010-08-01

196

Maxillary sinus swelling in a child: clinical dilemma  

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A 7-year-old girl had presented with right cheek swelling noted 3 months earlier. It was slowly progressive. Swelling was well defined, non-tender, smooth, firm in consistency and measured 4×4 cm. Intraoral examination revealed no missing teeth. Permanent teeth – central incisors (upper and lower), primary lateral incisor, canine and first and second molar were present. X-ray paranasal sinuses showed well-defined unilocular radiolucency with a thin sclerotic border enclosing permanent first molar, premolar and canine on the right side and first molar on the left side. The cyst was removed by enucleation procedure. Mucoperiosteal flap was elevated, and paper thin bone overlying the cyst was removed. The cyst was enclosing the permanent canine, premolar and molar teeth. Histopathological report was consistent with the dentigerous cyst. After 1-year follow-up, the patient has no obvious swelling over the cheek.

Goyal, Rashmi; Kumar, Alok; Saxena, Dipti; Biswas, Rakesh

2010-01-01

197

Chlamydophila pneumoniae and Mycoplasma pneumoniae were not identified in sinus mucosa of patients with chronic rhinosinusitis.  

Science.gov (United States)

Chronic rhinosinusitis is a symptomatic inflammation of the mucosa of the nose and paranasal sinuses lasting for at least 12 weeks. Atypical bacteria Chlamydophila pneumoniae and Mycoplasma pneumoniae are important causes of human respiratory tract infection. Also, they were identified in bronchial respiratory epithelium of patients with chronic obstructive pulmonary disease or asthma. Having in mind the unified airway concept, it is also possible that these bacteria can cause persistent infection of sinus mucosa in patients with chronic rhinosinusitis. Sixty consecutive patients with chronic rhinosinusitis who underwent the functional endoscopic sinus surgery due to medical therapy failure were included in the study. During the operation, sinuses were irrigated with sterile 0.9 % NaCl solution and this lavage was immediately aspirated. Aspirates were used for the detection of C. pneumoniae and M. pneumoniae DNA using real-time PCR. C. pneumoniae and M. pneumoniae DNA were not detected in samples analysed. Atypical bacteria C. pneumoniae and M. pneumoniae did not cause persistent infection of sinus mucosa in patients with chronic rhinosinusitis. PMID:24096817

Pandak, Nenad; Paji?-Penavi?, Ivana; Zidovec-Lepej, Snježana; Planini?, Ana; Trošelj-Vuki?, Biserka; Peri?, Ljiljana

2014-06-01

198

A radiographic study on the mucosal cyst of the maxillary sinus  

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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.

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

1993-08-15

199

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.

1993-08-01

200

Late self-extraction of a traumatically displaced molar tooth from the maxillary sinus.  

Science.gov (United States)

An unusual case of late self-extraction of an impacted left maxillary third molar that was displaced into the left maxillary sinus after a traffic accident is described. The patient had been operated on for a maxillofacial trauma after a traffic accident in a plastic and reconstructive surgery department 18 years ago. He was admitted to our clinic 1½ years ago for obstruction and periodically purulent drainage from the left side of the nose. A displaced tooth in the middle meatus was diagnosed, and the patient refused a surgical procedure to remove the tooth. The tooth was self-extracted from the nasal cavity 1 year later. One week after the extraction, the patient was mostly healed and had no complaints. PMID:22801180

Ertu?rul, Eylem Ertu?; Erkul, Evren; Velio?lu, Murat

2012-07-01

 
 
 
 
201

Osteoradionecrosis of sphenoid and temporal bones in a patient with maxillary sinus carcinoma: A case report  

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A case of radionecrosis of sphenoid and temporal bones is reported. The patient received a combination of surgery, radiotherapy, and chemotherapy for his left maxillary sinus carcinoma. After the combined therapy, necrosis accompanying inflammation developed in the maxillary and temporal regions. Excision of the necrotic tissues was done, and the left ascending ramus of the mandible was resected because of persistent tumor mass at the left infratemporal fossa. Although the excision wound of the maxilla healed by epithelialization, an area of nonvital bone remained exposed in the temporal region, where progressive osteonecrosis with infection led to breakdown of the skin. The necrotic bones of the zygomatic arch and the sphenotemporal sutural region became visible through the skin defect, and computerized tomography scan revealed bone necrosis involving the inferolateral area and the base of the skull. Excision of the necrotic bone and reconstruction with sternocleidomastoid myocutaneous flap were performed.

Inokuchi, T.; Sano, K.; Kaminogo, M. (Nagasaki Univ. School of Dentistry (Japan))

1990-09-01

202

Histopatologia da lâmina própria do seio maxilar na rinossinusite crônica / Histopathology of maxillary sinus lamina propria in chronic rhinosinusitis  

Scientific Electronic Library Online (English)

Full Text Available SciELO Brazil | Language: Portuguese Abstract in portuguese A rinossinusite crônica é definida de modo simplificado como uma inflamação crônica da mucosa nasossinusal. OBJETIVO: Na tentativa de entender o porquê das falhas terapêuticas. FORMA DE ESTUDO: Caso-controle. MATERIAL E MÉTODO: Decidimos estudar as alterações inflamatórias ultraestruturais encontrad [...] as na lâmina própria do seio maxilar de 13 pacientes portadores de rinossinusite crônica (RSC) e polipose nasossinusal (PNS), submetidos a tratamento cirúrgico. Biópsias da parede súpero-lateral do seio maxilar desses pacientes foram colhidas durante o ato operatório e, após preparação, observadas através de microscopia eletrônica de transmissão. RESULTADO: Na análise dos dados obtidos, observou-se cinco padrões de resposta inflamatória nas lâminas próprias estudadas inflamatório crônico. Processo inflamatório agudo - 1 caso; processo inflamatório não agudo e não crônico - 5 casos; processo inflamatório crônico - 2 casos; processo inflamatório desorganizado - 4 casos; processo inflamatório indeterminado - 1 caso. Concluindo, a análise dos resultados mostrou que a lâmina própria do seio maxilar desses pacientes esteve infiltrada por células inflamatórias, sem predomínio específico de qualquer elemento celular. Elementos glandulares não foram observados nos casos estudados e a fibrose foi notada em quase metade deles, com intensidade variada e localização preferencial logo abaixo do epitélio. CONCLUSÃO: Na situação vista, o processo inflamatório não seguiu as etapas normais de evolução, mostrou marcante desorganização do processo inflamatório, dificuldade em caminhar até a resolução do quadro, acompanhando a mesma dificuldade de resolução clínica nos pacientes. Abstract in english Chronic rhinosinusitis is defined in a simplified manner as chronic inflammation of the rhinosinusal mucosa. AIM: In an attempt to understand the reason for treatment failure. STUDY DESIGN: Case-control. MATERIAL AND METHOD: We decided to study the ultrastructural inflammatory changes detected in th [...] e lamina propria of the maxillary sinus of 13 patients with chronic rhinosinusitis and nasosinusal polyposis submitted to surgical treatment. Biopsies of the superolateral wall of the maxillary sinus were obtained from these patients during the surgical act and, after preparation, were observed by transmission electron microscopy. RESULTS: Analysis of the data obtained showed five patterns of inflammatory response in the lamina propria studied. Acute inflammatory process - 1 case; non-acute and non-chronic inflammatory process - 5 cases; chronic inflammatory process - 2 cases; disorganized inflammatory process - 4 cases; indeterminate inflammatory process - 1 case. Analysis of the results showed that the lamina propria of the maxillary sinus of these patients was infiltrated with inflammatory cells without the predominance of any particular cell element. Glandular elements were not observed in the cases studied and fibrosis was noted in almost half of them, of varying intensity and preferentially localized immediately below the epithelium. CONCLUSION: In the situation observed the inflammatory process did not follow the normal stages of evolution and showed marked disorganization, with difficulty in progressing to resolution of the picture, thus explaining the difficulties of patients refractory to clinical and surgical treatment.

Sabrina Maria de Castro, Sarreta; João Vicente, Dorgam; Bruno Beltrão de, Souza; Maria Dolores Seabra, Ferreira; Valder Rodrigues de, Melo; Wilma T., Anselmo-Lima.

203

Reconstruction of defects of maxillary sinus wall after removal of a huge odontogenic lesion using prebended 3D titanium-mesh and CAD/CAM technique  

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Abstract A 63 year-old male with a huge odontogenic lesion of sinus maxillaris was treated with computer-assisted surgery. After resection of the odontogenic lesion, the sinus wall was reconstructed with a prebended 3D titanium-mesh using CAD/CAM technique. This work provides a new treatment device for maxillary reconstruction via rapid prototyping procedures.

Stoetzer Marcus; Rana Majeed; von See Constantin; Eckardt André M; Gellrich Nils-Claudius

2011-01-01

204

Reconstruction of defects of maxillary sinus wall after removal of a huge odontogenic lesion using prebended 3D titanium-mesh and CAD/CAM technique  

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Full Text Available Abstract A 63 year-old male with a huge odontogenic lesion of sinus maxillaris was treated with computer-assisted surgery. After resection of the odontogenic lesion, the sinus wall was reconstructed with a prebended 3D titanium-mesh using CAD/CAM technique. This work provides a new treatment device for maxillary reconstruction via rapid prototyping procedures.

Stoetzer Marcus

2011-11-01

205

Reconstruction of defects of maxillary sinus wall after removal of a huge odontogenic lesion using prebended 3D titanium-mesh and CAD/CAM technique  

Digital Repository Infrastructure Vision for European Research (DRIVER)

A 63 year-old male with a huge odontogenic lesion of sinus maxillaris was treated with computer-assisted surgery. After resection of the odontogenic lesion, the sinus wall was reconstructed with a prebended 3D titanium-mesh using CAD/CAM technique. This work provides a new treatment device for maxillary reconstruction via rapid prototyping procedures.

Stoetzer, Marcus; Rana, Majeed; Von See, Constantin; Eckardt, Andre? M.; Gellrich, Nils-claudius

2011-01-01

206

Comparison of CT findings in non-Hodgkin lymphoma and squamous cell carcinoma of the maxillary sinus  

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The findings at CT in 11 patients with primary non-Hodgkin lymphoma (NHL) of the maxillary sinus were compared with the CT findings in 21 patients with squamous cell carcinoma (SCC) of the maxillary sinus. In NHL, the segmental bone destruction was in alignment with the bony wall with a massive tumor infiltration into the neighboring structures. In contrast, all patients with SCC were characterized by a soft tissue mass with aggressive bone destruction. About half of the patients with NHL had cervical lymphadenopathy. Post-treatment recalcification of previous bone destruction was seen in 4 out of 5 NHL patients on follow-up CT. In the patients with SCC, only a few had metastatic lymphadenopathy, and no recalcification occurred after treatment. CT is therefore of importance in differentiating NHL from SCC of the maxillary sinus. (orig.).

Matsumoto, S.; Shibuya, H.; Tatera, S.; Yamazaki, E.; Suzuki, S. (Dept. of Radiology, Tokyo Medical and Dental Univ. (Japan))

1992-11-01

207

Comparison of CT findings in non-Hodgkin lymphoma and squamous cell carcinoma of the maxillary sinus  

International Nuclear Information System (INIS)

The findings at CT in 11 patients with primary non-Hodgkin lymphoma (NHL) of the maxillary sinus were compared with the CT findings in 21 patients with squamous cell carcinoma (SCC) of the maxillary sinus. In NHL, the segmental bone destruction was in alignment with the bony wall with a massive tumor infiltration into the neighboring structures. In contrast, all patients with SCC were characterized by a soft tissue mass with aggressive bone destruction. About half of the patients with NHL had cervical lymphadenopathy. Post-treatment recalcification of previous bone destruction was seen in 4 out of 5 NHL patients on follow-up CT. In the patients with SCC, only a few had metastatic lymphadenopathy, and no recalcification occurred after treatment. CT is therefore of importance in differentiating NHL from SCC of the maxillary sinus. (orig.)

1992-11-01

208

Extensões dos seios maxilares detectadas em radiografias periapicais =Maxillary sinus extension detected by periapical radiographies  

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Full Text Available O seio maxilar é a maior das cavidades paranasais. Pode variar em relação à forma e tamanho, em indivíduos diferentes, assim como, entre os lados direito e esquerdo, em um mesmo indivíduo. Como variações em relação à forma, encontramos as extensões maxilares para o rebordo alveolar, região anterior, tuberosidade da maxila, palato, osso zigomático e região orbitária. As três primeiras são visualizadas nas radiografias periapicais. Esse estudo teve por objetivo verificar a freqüência das extensões dos seios maxilares (alveolar, para anterior e para a tuberosidade visualizadas em radiografias periapicais, bem como verificar o lado (direito ou esquerdo em que essas aparecem com maior freqüência e sua relação com as exodontias. A amostra foi composta por 100 exames contendo radiografias periapicais da região de prémolares e molares superiores, dos lados direito e esquerdo, totalizando 400 radiografias. Estas foram observadas em ambiente com iluminação de baixa intensidade, montadas em cartelas de papel preto opaco e analisadas em um único negatoscópio com auxílio de lupa de três aumentos. Os dados obtidos mostraram que as extensões alveolares são mais freqüentes que àquelas para anterior ou para a tuberosidade. Com relação ao lado, somente nas extensões para a tuberosidade, verificou-se uma tendência de maior freqüência no lado direito. Observou- se também uma associação entre presença de extensão alveolar e exodontia nas regiões de pré-molares e molares superiores (Qui-quadrado, p = 0,01. Maxillary sinus is the largest paranasal cavity. Its shape and size vary in different individuals as well as between the right and left sides in the same person. Regarding its shape variation, maxillary sinus extensions can be found at alveolar ridge, anterior region, maxillary tuberosity, palate, zygomatic bone and orbital region. The first three extensions are visualized in periapical radiographies. The aim of this study was to verify the frequency of the maxillary sinus extensions (alveolar, anterior and tuberosity visualized in periapical radiographies comparing the right and the left side, as well as its relation to extractions. The sample was composed by 100 upper premolar and molar radiographic examinations, from the right and the left sides, totalizing 400 periapical radiographies. The radiographies, mounted in a black frame, were observed in a low intensity illumination environment, using the same viewing box and with the aid of a 3× magnifying lens. The data showed that the alveolar extensions were more frequent than those from the anterior or the tuberosity. Regarding the side, only the tuberosity sinus extensions tended to be more frequent at the right side. An association between the presence of alveolar extension and tooth extraction in the upper premolar and molar regions was also observed (Chi-square, p = 0,01.

Arieta, Luciana Correa et al.

2005-01-01

209

Endoscopic removal of a huge keratocystic odontogenic tumor in maxillary sinus.  

Science.gov (United States)

Keratocystic odontogenic tumor is derived from the proliferation of residues of the dental lamina. Keratocystic odontogenic tumors have high recurrence rate from 0% to 62%, depending on the locations and types of treatment. The controversy still exists about treatment methods ranging from simple curettage to highly invasive en bloc resection. Furthermore, there is no consensus on the most effective surgical technique. We report the first case of removal via endonasal endoscopic approach for a huge, expansile keratocystic odontogenic tumor in the maxillary sinus extending to contralateral central incisor. PMID:24621704

Mun, Mi-Jin; Jung, Da-Woon; Lee, Chang-Hoon; Cho, Kyu-Sup

2014-03-01

210

Aberrant Anatomical Variation of Maxillary Sinus Mimicking Periapical Cyst: A Report of Two Cases and Role of CBCT in Diagnosis  

Science.gov (United States)

Most periapical lesions are associated with microorganisms from infected root canal systems. Maxillary sinus can pose a diagnostic dilemma radiographically because of its anatomical variation which can mimic a periapical pathosis. The aim of this study was to describe two cases of aberrant anatomical variation of the maxillary sinus that presented radiographic similarities to a periapical cyst in order to call the attention of clinicians to the fact that several different diseases are able to mimic endodontic periapical lesions. An accurate assessment of this morphology was made with the help of cone-beam computed tomography (CBCT).

Sekerci, Ahmet Ercan; Sisman, Yildiray; Etoz, Meryem; Bulut, Duygu Goller

2013-01-01

211

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.

1995-02-01

212

A radiologic study on the experimental lesions of the maxillary sinus  

Energy Technology Data Exchange (ETDEWEB)

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.

Kim, Young Il; Kim, Jae Duck [Dept. of Oral and Maxillofacial Radiology, College of Dentistry, Chosun University, Kwangju (Korea, Republic of)

1995-02-15

213

Assessment of the relationship between palatum durum and maxillary bone in patients with nasal polyp, chronic sinusitis or septum deviation.  

Science.gov (United States)

Nasal obstruction most commonly occurs due to mucosal abnormalities and those in cartilage-bone structure such as nasal polyp, septum deviation, concha hypertrophy and chronic sinusitis in adults. Adenoid vegetation is the most prominent cause in childhood. In the present study, we aimed to investigate whether maxillary and palatal bone developments continue in patients with abnormalities causing nasal obstruction. As computerized tomography is the optimal imaging modality in nasal cavity abnormalities, CT scan findings of patients with Control nasal polyp, chronic sinusitis and septum deviation were retrospectively evaluated; and palatal curve changes were compared. In our study, it was found that maxillary bone curve was widened in adult patients with nasal polyp; this angle was further narrowed in those with chronic sinusitis; and maxillary bone curve narrowing and increase in the distance to palatal bone was smaller in patients with septum deviation than those in chronic sinusitis. In the light of these findings, we concluded that, in adults, maxillary and palatal bone developments continue in certain circumstances including nasal polyp, chronic sinusitis or septum deviation. PMID:24427690

Cengiz, Cevik; Hanifi, Bayarogullari; Ercan, Akbay; Yasar, Cokkeser

2013-08-01

214

A Comparative Study Between Endoscopic Middle Meatal Antrostomy and Caldwell-Luc Surgery in the Treatment of Chronic Maxillary Sinusitis  

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Functional endoscopic sinus surgery (FESS) has almost completely replaced the radical Caldwell-Luc approach. About 20 years after its origin of FESS a comparative study with Caldwell-Luc Surgery (C-L) definitely should be on cards to validate the previous results. To compare the effectiveness of endoscopic middle meatal antrostomy and Caldwell-Luc’s surgery in the management of Chronic Maxillary Sinusitis. This is a prospective randomized comparative study based on the analysis of eighty p...

Joe Jacob, K.; George, Shibu; Preethi, S.; Arunraj, V. S.

2011-01-01

215

A Rare Case of Fungal Maxillary Sinusitis due to Paecilomyces lilacinus in an Immunocompetent Host, Presenting as a Subcutaneous Swelling  

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Paecilomyces is a colonizing fungal species which usually causes keratitis, endocarditis, sinusitis, nephritis, fungemia, cutaneous, and subcutaneous infections in immunocompromised host. Very rarely, it causes similar infection in immunocompetent host without any risk factors. We report a case of maxillary sinusitis due to Paecilomyces lilacinus in a 65–year-old immunocompetent male, who presented with a subcutaneous swelling below the left eye. The lesion was excised by surgery and treate...

Permi, Harish S.; Sunil, Kumar Y.; Karnaker, Vimal K.; Kishan, Prasad H. L.; Teerthanath, S.; Bhandary, Satheesh Kumar

2011-01-01

216

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  

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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.

Sergio Olate

2011-12-01

217

Induction Chemotherapy in Technically Unresectable Locally Advanced Carcinoma of Maxillary Sinus  

Science.gov (United States)

Background. Locally advanced carcinoma of maxillary sinus has been historically reported to have poor prognosis. We evaluated the role of NACT in improving the outcome in these patients. Methods. 41 patients with locally advanced technically unresectable (stage IVa) or unresectable maxillary carcinoma (stage IVb) were treated with induction chemotherapy between 2008 and 2011. The demographic profile, response and toxicity of chemotherapy, definitive treatment received, progression free survival (PFS), and overall survival (OS) were analyzed. Univariate and multivariate analysis were performed to determine factors associated with PFS and OS. Results. The chemotherapy included two drugs (platinum and taxane) in 34 patients (82.9%) and three drugs (platinum, taxane, and 5 FU) in 7 (17.1%). There was no complete response seen in any of the patients, stable disease in 18 (43.9%), partial response in 16 (39%), and progression in 7 (17.1%) patients. After induction, the treatment planned included surgery in 12 (29.3%), CT-RT in 24 (58.5%), radical RT in 1 (2.4%), palliative RT in 1 (2.4%), and palliative chemotherapy in 3 (7.3%) patients. Overall, the median PFS was 10.0 months. The OS at 24 months and 36 months was 41% and 35%, respectively. Conclusion. In unresectable maxillary carcinoma, induction chemotherapy has clinically significant benefit with acceptable toxicity.

Noronha, Vanita; Patil, Vijay Maruti; Joshi, Amit; Krishna, Muddu Vamshi; Dhumal, Sachin; Juvekar, Shashikant; Pai, P.; Chatturvedi, Pankaj; Chaukar, Devendra Arvind; Agarwal, Jai Prakash; Ghosh, Sarbani; Murthy, Vedang; D'cruz, Anil; Prabhash, Kumar

2014-01-01

218

Mixoma odontogênico maxilar: relato de caso clínico comprometendo seio maxilar Maxillary odontogenic myxoma involving the maxillary sinus: case report  

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Full Text Available O objetivo deste artigo é relatar um caso de mixoma odontogênico no lado direito da maxila com envolvimento do seio maxilar e fazer uma revisão de literatura envolvendo aspectos clínicos, radiográficos, histológicos e de tratamento desta patologia. O mixoma odontogênico dos maxilares é uma lesão benigna, sem preferência por sexo, raça ou localização, com características clínicas e radiográficas extremamente variadas, o que amplia demasiadamente o número de patologias tumorais do sistema estomatognático com as quais pode ser feito o diagnóstico diferencial.The aim of this paper is to report a case of odontogenic myxoma that affected the right maxilla and maxillary sinus. We have also reviewed the literature in regards of the clinical, radiographic, histological and treatment aspects of this pathology. Odontogenic myxomas of the maxillofacial region are benign lesions, without preference for gender, race or location, with extremely varied clinical and radiographic characteristics, thus increasing the number oral and maxillofacial region tumors with which we can make the differential diagnosis.

Allan Ulisses Carvalho de Melo

2008-06-01

219

Mixoma odontogênico maxilar: relato de caso clínico comprometendo seio maxilar / Maxillary odontogenic myxoma involving the maxillary sinus: case report  

Scientific Electronic Library Online (English)

Full Text Available SciELO Brazil | Language: Portuguese Abstract in portuguese O objetivo deste artigo é relatar um caso de mixoma odontogênico no lado direito da maxila com envolvimento do seio maxilar e fazer uma revisão de literatura envolvendo aspectos clínicos, radiográficos, histológicos e de tratamento desta patologia. O mixoma odontogênico dos maxilares é uma lesão ben [...] igna, sem preferência por sexo, raça ou localização, com características clínicas e radiográficas extremamente variadas, o que amplia demasiadamente o número de patologias tumorais do sistema estomatognático com as quais pode ser feito o diagnóstico diferencial. Abstract in english The aim of this paper is to report a case of odontogenic myxoma that affected the right maxilla and maxillary sinus. We have also reviewed the literature in regards of the clinical, radiographic, histological and treatment aspects of this pathology. Odontogenic myxomas of the maxillofacial region ar [...] e benign lesions, without preference for gender, race or location, with extremely varied clinical and radiographic characteristics, thus increasing the number oral and maxillofacial region tumors with which we can make the differential diagnosis.

Allan Ulisses Carvalho de, Melo; Sérgio Bartolomeu de Farias, Martorelli; Paulo Henrique de Holanda, Cavalcanti; Luiz Alcino, Gueiros; Fernando de Oliveira, Martorelli.

220

Histologic and clinical observations of resorbable and nonresorbable barrier membranes used in maxillary sinus graft containment.  

Science.gov (United States)

In this study, clinical and histologic responses to a bioresorbable membrane used to obturate an osteotomy site in the lateral wall of the maxillary sinus and to facilitate graft containment were examined. Expanded polytetrafluoroethylene (e-PTFE) membranes were used as a control to compare biocompatibility and resorption characteristics. Twelve sinus augmentation procedures were performed to facilitate placement of implants in nine patients with insufficient bone in the edentulous posterior maxillae. In five procedures, the lateral wall was obturated to ensure graft containment with an e-PTFE membrane; the other seven were covered with a bioresorbable barrier (poly[lactic acid]). The presence or absence of inflammation, dehiscence, suppuration, and encleftation were recorded. All patients healed without complication or adverse biologic reaction to either barrier material. Biopsy specimens of the graft site were taken from the lateral wall with overlying soft tissue prior to reflection of the full-thickness flap at stage 2 surgery. Findings suggest that a poly(lactic acid) membrane can provide results similar to those with e-PTFE membranes for use in lateral obturation during sinus augmentation. PMID:9048460

Avera, S P; Stampley, W A; McAllister, B S

1997-01-01

 
 
 
 
221

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)

Full Text Available SciELO Chile | Language: Spanish Abstract in spanish 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

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

222

The association between paranasal computerized tomography scans and symptoms and signs in a general practice population with acute maxillary sinusitis  

DEFF Research Database (Denmark)

The objective of this study was to evaluate the association between changes revealed by computerized tomography scan (CT) and symptoms, signs, and bacteriological diagnoses in a general practice population who had been diagnosed with acute maxillary sinusitis (AMS). This study was designed as a prospective cohort study in Danish general practice in cooperation with the otorhinolaryngology and neuroradiology departments at Aalborg County Hospital. One hundred and seventy-four patients, aged 18-65 years, suspected of having AMS were included. The strongest associations were with purulent nasal discharge, preceding upper respiratory tract infection, maxillary toothache and oedema over the maxillary sinuses. Self-reported previous sinusitis was negatively associated with sinus infection. There was a strong association between increasing values of C-reactive protein (CRP) and erythrocyte sedimentation rate and changes on the CT scan. CT scans contributed only little to the final diagnosis, whereas increased CRP values and elevated erythrocyte sedimentation rates were more reliable indicators of inflammation in the sinuses.

Hansen, Jens Georg; Lund, Elisabeth

2011-01-01

223

Odontogenic myxoma of maxillary sinus: CT and MR-pathologic correlation  

Energy Technology Data Exchange (ETDEWEB)

We showed the characteristic features of odontogenic myxoma in the maxillary sinus with computed tomography (CT), magnetic resonance imaging (MRI), and histopathological findings. CT images showed a multilocular soft tissue mass with bone destruction and thinning, and the characteristic finding of this lesion as strands of fine lacelike density. MRI revealed intermediate signal intensity on T1-weighted image and high signal intensity on T2-weighted image. MRI showed the erosive extent of the lesion into the adjacent structures. In contrast T1-weighted image, the peripheral portion of the lesion with a relatively large quantity of collagen bundles was enhanced, while the central portion with only mucoid component was not. The CT and MRI appearances correlated well with the histologic features and therefore were considered to be a useful tool for diagnosis of myxoma.

Asaumi, Jun-ichi E-mail: asaumi@dent.okayama-u.ac.jp; Konouchi, Hironobu; Hisatomi, Miki; Kishi, Kanji

2001-01-01

224

Odontogenic myxoma of maxillary sinus: CT and MR-pathologic correlation  

International Nuclear Information System (INIS)

We showed the characteristic features of odontogenic myxoma in the maxillary sinus with computed tomography (CT), magnetic resonance imaging (MRI), and histopathological findings. CT images showed a multilocular soft tissue mass with bone destruction and thinning, and the characteristic finding of this lesion as strands of fine lacelike density. MRI revealed intermediate signal intensity on T1-weighted image and high signal intensity on T2-weighted image. MRI showed the erosive extent of the lesion into the adjacent structures. In contrast T1-weighted image, the peripheral portion of the lesion with a relatively large quantity of collagen bundles was enhanced, while the central portion with only mucoid component was not. The CT and MRI appearances correlated well with the histologic features and therefore were considered to be a useful tool for diagnosis of myxoma

2001-01-01

225

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

Energy Technology Data Exchange (ETDEWEB)

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.

Yoon, Suk Ja; Jung, Hyun Dae; Kang, Byung Chul [Faculty of Dental Science, Graduate School, Chonnam National University, Kwangju (Korea, Republic of)

1995-08-15

226

Structural features of facial skull and maxillary sinuses as predictors of complications in endodontic treatment of teeth of upper jaw  

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Endodontic treatment is considered to be one of the most common procedures in modern dentistry, which also leads to increase of the complications. Objective: to establish the anthropometric characteristics of the structure of the facial skull and maxillary sinus, determining the development of complications of the endodontic treatment of upper jaw. Materials and methods. Measurements have been performed on 105 three-dimensional CT scan of the head, 75 have been in the control group, 30 cases ...

Lepilin A.M.; Mareev O.V.; Kovalenko I.P.; Mareev G.O.

2012-01-01

227

Easy and Unbiased Determination of the Maxillary Sinus Volume / Fácil Determinación y sin Sesgo del Volumen del Seno Maxilar  

Scientific Electronic Library Online (English)

Full Text Available SciELO Chile | Language: English Abstract in spanish La determinación del volumen del seno maxilar es necesaria en distintos procedimientos. En este estudio presentamos un método sencillo para la estimación del volumen del seno maxilar a partir de grupos de 3, 5 y 9 cortes coronales obtenidos mediante TC aplicando el método de Cavalieri combinado con [...] un muestreo sistemático y aleatorio de las imágenes evaluadas. Utilizamos 10 cráneos secos los cuales fueron sometidos a TC con cortes de 1mm de espesor a partir de cuyas imágenes se seleccionaron grupos de 3, 5 y 9 cortes coronales que involucraban al seno maxilar. El volumen real se determinó utilizando silicona adaptada a la cavidad del seno maxilar. El volumen estimado presentó una alta correlación con el volumen real, no encontrándose diferencias entre los grupos. Se concluye que es posible la estimación sin sesgo y con una elevada exactitud del volumen del seno maxilar a partir de un mínimo de 3 imágenes de TC obtenidas mediante muestreo sistemático y aleatorio con el método propuesto. Abstract in english Determining the volume of the maxillary sinus is necessary in certain procedures. We present a simple method for estimating the volume of the maxillary sinus from groups 3, 5 and 9 coronal CT scan using the Cavalieri method combined with systematic sampling and evaluated randomized images. We used 1 [...] 0 dry skulls submitted to the TC. The actual volume was determined using silicone adapted to the maxillary sinus cavity. The estimated volume showed a high correlation with real volume, with no differences between groups. We concluded that it is possible to estimate without bias and with high accuracy the volume of the maxillary sinus from a minimum of 3 CT images obtained through randomized systematic sampling and the proposed method.

Cesar, Coronado; Oscar, Arriagada; Iván, Suazo Galdames.

228

Structural features of facial skull and maxillary sinuses as predictors of complications in endodontic treatment of teeth of upper jaw  

Directory of Open Access Journals (Sweden)

Full Text Available Endodontic treatment is considered to be one of the most common procedures in modern dentistry, which also leads to increase of the complications. Objective: to establish the anthropometric characteristics of the structure of the facial skull and maxillary sinus, determining the development of complications of the endodontic treatment of upper jaw. Materials and methods. Measurements have been performed on 105 three-dimensional CT scan of the head, 75 have been in the control group, 30 cases have got foreign bodies of the maxillary sinuses on the CT. Results. We have established the correlation between obtained anthropometrical parameters such as height and width of the face with the type of maxillary sinus pneumatization, also we have studied the critical thickness of the bone plate over the tooth root, which is the main predisposing factor in the development of complications. Conclusion. It is possible to form risk groups according to the type of the structure of the front-skeleton, for additional studies of further endodontic interventions that may reduce their frequency.

Lepilin A.M.

2012-09-01

229

Long-term results of the maxillary sinus carcinoma with irradiation and intraarterial infusion of 5-FU  

Energy Technology Data Exchange (ETDEWEB)

Therapeutic results of 33 primary cases of maxillary sinus carcinoma treated with irradiation and intraarterial infusion of 5-FU between 1972 and 1984 were analyzed. The 5-year crude survival rate for the group with stage T2 carcinoma (n=10) was 50.0%, and for those with T3 (n=15) and T4 (n=8) it was 46.7% and 25.0%, respectively. The overall 5-year crude survival rate was 42.4%. Eight patients who did not undergo maxillectomy survived for 5 years after irradiation and intraarterial infusion. Recurrence of the tumor after the irradiation and intraarterial infusion occurred in 63.6%, and was frequently observed at the ethmoidal region and the orbita. In the areas in which the tumor extended to regions such as the ethmoid sinus and orbita, which are nourished by arteries other than the maxillary artery, conventional intraarterial infusion was ineffective for complete tumor eradication. Therefore, in most of the patients with advanced maxillary sinus carcinoma, partial or total maxillectomy following combined therapy of intraarterial infusion and irradiation is necessary to improve a prognosis. (author).

Sakaguchi, Masanori; Netsu, Kiminori (Shinshu Univ., Matsumoto, Nagano (Japan). Faculty of Medicine); Kawarada, Kazuo; Yachiyama, Hitoshi

1990-08-01

230

Sinus Surgery  

Medline Plus

Full Text Available ... also require enlarging the hole that the sinuses drain through. Polyp Sometimes the walls between the sinuses ... to make it easier for the mucus to drain. These openings are made between the maxillary sinus ...

231

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

Scientific Electronic Library Online (English)

Full Text Available SciELO Cuba | Language: Spanish Abstract in spanish 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.

Zamora Linares, Carlos E..

232

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

Science.gov (United States)

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.

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; Tete, Stefano; Piattelli, Adriano; Mattioli, Mauro

2013-01-01

233

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)

Full Text Available SciELO Chile | Language: English Abstract in spanish 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

Ghaus, Farah; Ahmad Faruqi, Nafis.

234

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

Scientific Electronic Library Online (English)

Full Text Available SciELO Brazil | Language: Portuguese Abstract in portuguese 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.

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

235

Carcinoma of the maxillary sinus. A retrospective investigation of 124 patients  

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A retrospective review of 124 patients of carcinoma of the maxillary sinus treated at Kurume University Hospital from 1971 to 1980 was completed. Of these 124 patients, 111 patients had not been previously treated and underwent curative treatment, 8 patients underwent palliative treatment, and 5 patients were those who had been previously treated at other clinics. The results of this retrospective studies are summarized as follows: 1) In the 58 patients who were followed up for 5 years or more after the onset of initial curative treatment, the 3- and 5-year crude survival rates calculated by direct method were 58.6% and 51.7%, respectively. 2) In the 111 patients who underwent curative treatments, the 3- and 5-year cumulative survival rates calculated by the actuarial method were 61.8% and 52.3%, respectively. 3) Among various factors which can be determined before the treatment, T category and L.V. histological classification were considered to be useful in order to estimate the prognosis. 4) With respect to T categorization, the JJC proposal proved to be better than the AJC proposal. 5) The majority of causes of deaths was uncontrolled primary lesion. Involvement of the cervical lymph nodes were controlled in most cases and distant metastasis were not frequent. 6) As for the treatments, the best modalities appeared to be the following two combinations: (1) infusion, radiation and necrotomy followed by an eradicating surgery and (2) infusion, radiation and necrotomy associated with a mass reduction surgery. 7) Three year crude survival rate calculated by direct method was equally 80.0% in the above two combination therapies. Final conclusions on the comparison between these two Combination treatments await further follow-up studies of more patients.

Mihashi, S.; Mihashi, K.; Kurita, S.; Nagata, K.; Koga, A.; Hirano, M. (Kurume Univ., Fukuoka (Japan). School of Medicine)

1982-09-01

236

Removal of orbital-maxillary sinus-pterygopalatine fossa foreign body with external and endoscopic combined approach.  

Science.gov (United States)

Craniofacial trauma involving the pterygopalatine fossa region is reported to be rare. We present a case of a foreign body involving the orbit, maxillary sinus, and pterygopalatine fossa in a 4-year-old boy. The object was a reed shaft. Three-dimensional computed tomographic scans and magnetic resonance imaging were done to make a correct diagnosis and to apply the best surgical treatment. The Caldwell-Luc approach combined with endoscopic approach was applied to remove all the fragments of the foreign body, which had been decayed in the human body. One month later, the patient showed satisfactory aesthetic and functional results. PMID:24914753

Wu, Xiaoshan; Li, Aifang; Tan, Jia; Ou, Xinrong

2014-07-01

237

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

Scientific Electronic Library Online (English)

Full Text Available SciELO Brazil | Language: Portuguese Abstract in portuguese 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.

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

238

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

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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 ortodôntico. 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.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 reasonably 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.

Paulo Renato Carvalho Ribeiro

2007-10-01

239

Anterior sinus grafts for angled implant placement for severe maxillary atrophy as an alternative to zygomatic implants for full arch fixed restoration: technique and report of 5 cases.  

Science.gov (United States)

We report on 5 cases, 4 to demonstrate the anterior sinus graft technique for angled implant placement and 1 comparison zygomatic case, all for immediate function implant restoration despite severe maxillary atrophy. The sinus graft was low volume, with less than 5 mL of bone morphogenetic protein-2/absorbable collagen sponge allograft in a 50% mixture placed against the lateral nasal wall, often in conjunction with implant placement. The importance of the technique is to simplify treatment of severe maxillary atrophy for immediate function to avoid the need for zygomatic implant placement in the vast majority of severely atrophic maxillas. PMID:24947964

Jensen, Ole T; Adams, Mark W

2014-07-01

240

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)

Full Text Available SciELO Brazil | Language: Portuguese Abstract in portuguese 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.

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

 
 
 
 
241

Sinus Surgery  

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Full Text Available ... you have sinus surgery. The decision whether or not to have sinus surgery is also yours. This ... is called the ‘middle meatus.’ Healthy sinuses are not plugged and the mucosa is not inflamed. The ...

242

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)

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.

EAJM Schulten

2013-03-01

243

The silent sinus syndrome.  

Science.gov (United States)

The silent sinus syndrome (SSS) involves painless facial asymmetry and enophthalmos, which is the result of chronic maxillary sinus atelectasis. In most cases, it is diagnosed clinically, however, using the characteristic imaging features including maxillary sinus outlet obstruction, sinus opacification, and sinus volume loss caused by inward retraction of the sinus walls. Obstruction of the maxillary ostium appears to play a critical role in the development of SSS. Treatment involves functional endoscopic surgery. PMID:23946747

Sheikhi, Mahnaz; Jalalian, Faranak

2013-03-01

244

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)

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

Ghaus Farah

2006-09-01

245

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

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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 prévio 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.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.

Karina Mantovani

2010-10-01

246

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)

Full Text Available SciELO Brazil | Language: Portuguese Abstract in portuguese 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.

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

247

Multidisciplinary therapy consisting of minimally invasive resection, irradiation, and intra-arterial infusion of 5-fluorouracil for resectable T3/T4 maxillary sinus carcinomas  

International Nuclear Information System (INIS)

Current goals for the treatment of maxillary sinus carcinoma include preservation of vision, eating, communication, and appearance as well as cure. 121 Japanese patients who presented with maxillary sinus carcinoma between 1979 and 2005 were analyzed retrospectively. There were 77 males and 44 females, with a median age of 63 years. All patients underwent multimodality therapy including surgery through a sublabial incision, radiotherapy, and intra-arterial chemotherapy. The regional lymph nodes were treated only in patients with neck involvement. Mean follow-up period was 79 months. The 5-year overall survival rates and local control rates were 73% and 72%, respectively. The 5-year local control rates for patients with T2 lesions were 71%; for patients with T3 lesions, 88%; and for patients with T4a lesions, 60%; and for patients with T4b lesions, 56%. In patients with squamous cell carcinoma, the 5-year local control rates were 76%. In patients with non-squamous cell carcinoma, the 5-year local control rates were 54%. There was significant difference in local control rates among these groups. Control of the primary site is important in the curative treatment of maxillary sinus carcinoma. Combined therapy with conservative surgery, radiotherapy, and regional chemotherapy is an effective method for maxillary sinus carcinoma. (author)

2012-11-01

248

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

DEFF Research Database (Denmark)

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 β-tricalcium phosphate (rhGDF-5/β-TCP) or with a β-TCP and autogenous bone (β-TCP/AB) composite.

Stavropoulos, Andreas; Becker, Jürgen

2011-01-01

249

Salvage operations for patients with persistent or recurrent cancer of the maxillary sinus after superselective intra-arterial infusion of cisplatin with concurrent radiotherapy.  

Science.gov (United States)

Our aim was to evaluate the feasibility of salvage operations for patients with persistent or recurrent cancer of the maxillary sinus after superselective intra-arterial infusion of cisplatin with concurrent radiotherapy. We retrospectively analysed the records of 61 patients with cancer of the maxillary sinus who were treated in this way. Chemotherapy comprised 100-120 mg/m(2) superselective intra-arterial infusions of cisplatin given a median of 4 times weekly (range 2-5). Concurrent radiotherapy was given in a median dose of 65 Gy (range 24-70 Gy). Persistent or recurrent cancer of the maxillary sinus was found in 17 patients, of whom 11 had salvage surgery. The disease was controlled in 8 of the 11, and 7 of the 11 survived with no evidence of disease. Their 5-year overall survival was 61%. Two of the 11 developed serious operative complications. Salvage surgery for patients with persistent or recurrent cancer of the maxillary sinus treated by superselective chemoradiotherapy is both safe and successful. Salvage surgery is a good option when this sort of persistent or recurrent cancer is followed up after the regimen of chemoradiotherapy described. PMID:24582012

Sakashita, Tomohiro; Homma, Akihiro; Hatakeyama, Hiromitsu; Kano, Satoshi; Mizumachi, Takatsugu; Furusawa, Jun; Yoshida, Daisuke; Fujima, Noriyuki; Onimaru, Rikiya; Tsuchiya, Kazuhiko; Yasuda, Koichi; Shirato, Hiroki; Suzuki, Fumiyuki; Fukuda, Satoshi

2014-04-01

250

Variabilidad anatómica de los senos maxilares y de estructuras involucradas en su vía de drenaje / Variability of the maxillary sinuses and structures involved in their drainage path  

Scientific Electronic Library Online (English)

Full Text Available SciELO Spain | Language: Spanish Abstract in spanish Introducción: la enfermedad de los senos paranasales, particularmente la de los senos maxilares, es común y puede causar sintomatología que simula patología dental. Objetivo: determinar las variaciones anatómicas del seno maxilar y de las estructuras involucradas en su drenaje, utilizando tomografía [...] computarizada de haz de cono (TCHC). Materiales y Métodos: el estudio incluyó los exámenes descriptivos de TCHC en 48 pacientes. En todos los casos analizados se realizó un estudio sistemático de los senos maxilares y de las estructuras anatómicas involucradas en su vía de drenaje, en los planos coronal, sagital y axial. Resultados y Conclusiones: Se identificaron variaciones morfológicas en el septo interno del seno maxilar, la celdilla de Haller, el proceso unciforme y la bulla etmoidal. Se observó presencia de septo interno del seno maxilar y de celdillas de Haller en el 76,74% y 16,28% de los individuos, respectivamente. El proceso unciforme horizontal se observó en el 79,07% de los sujetos y el vertical en el 20,93%. Además, se identificaron bullas etmoidales bilaterales en el 62,79% de los casos. Los senos paranasales presentan variaciones anatómicas marcadas fundamentalmente por su desarrollo prenatal y postnatal, ligados a la neumatización general del neumocráneo y a estructuras que inhiben o permiten su desarrollo. La tomografía computarizada de haz de cono proporciona imágenes que permiten una visualización y evaluación adecuada del seno maxilar y del complejo osteomeatal. Abstract in english Introduction: the disease of the sinuses, particularly the maxillary sinuses is common and can cause symptoms that simulate dental disease. Objective: to determine the anatomical variations of maxillary sinus and its drainage structures involved in using computerized tomography cone beam (CTCN). Mat [...] erials and methods: The study included descriptive reviews of CTCN in 48 patients. In all cases analyzed a systematic study of the maxillary sinuses and anatomical structures involved in their drainage path, in the coronal, sagittal and axial planes. Results and conclusions: Morphological changes were identified in the internal maxillary sinus septum, the Haller's cell, uncinate process and ethmoid bulla. It was noted the presence of internal septum and maxillary sinus Haller cells in 76.74% and 16.28% of individuals, respectively. The horizontal uncinate process was observed in 79.07% of the subjects and the vertical at 20.93%. In addition, bilateral ethmoid bullae were identified in 62.79% of the cases. The sinus anatomical variations occur mainly marked by prenatal and postnatal development, linked to the overall pneumatization neumocraneo and structures that inhibit or enable their development. Beam computed tomography cone provides images that allow visualization and proper evaluation of the maxillary sinus and osteomeatal complex.

J., Pinares Toledo; T., Carrillo Porras; I.C., Guzmán Zuluaga; C.M., Ardila Medina; C.L., Guzmán Zuluaga.

251

Variabilidad anatómica de los senos maxilares y de estructuras involucradas en su vía de drenaje Variability of the maxillary sinuses and structures involved in their drainage path  

Directory of Open Access Journals (Sweden)

Full Text Available Introducción: la enfermedad de los senos paranasales, particularmente la de los senos maxilares, es común y puede causar sintomatología que simula patología dental. Objetivo: determinar las variaciones anatómicas del seno maxilar y de las estructuras involucradas en su drenaje, utilizando tomografía computarizada de haz de cono (TCHC. Materiales y Métodos: el estudio incluyó los exámenes descriptivos de TCHC en 48 pacientes. En todos los casos analizados se realizó un estudio sistemático de los senos maxilares y de las estructuras anatómicas involucradas en su vía de drenaje, en los planos coronal, sagital y axial. Resultados y Conclusiones: Se identificaron variaciones morfológicas en el septo interno del seno maxilar, la celdilla de Haller, el proceso unciforme y la bulla etmoidal. Se observó presencia de septo interno del seno maxilar y de celdillas de Haller en el 76,74% y 16,28% de los individuos, respectivamente. El proceso unciforme horizontal se observó en el 79,07% de los sujetos y el vertical en el 20,93%. Además, se identificaron bullas etmoidales bilaterales en el 62,79% de los casos. Los senos paranasales presentan variaciones anatómicas marcadas fundamentalmente por su desarrollo prenatal y postnatal, ligados a la neumatización general del neumocráneo y a estructuras que inhiben o permiten su desarrollo. La tomografía computarizada de haz de cono proporciona imágenes que permiten una visualización y evaluación adecuada del seno maxilar y del complejo osteomeatal.Introduction: the disease of the sinuses, particularly the maxillary sinuses is common and can cause symptoms that simulate dental disease. Objective: to determine the anatomical variations of maxillary sinus and its drainage structures involved in using computerized tomography cone beam (CTCN. Materials and methods: The study included descriptive reviews of CTCN in 48 patients. In all cases analyzed a systematic study of the maxillary sinuses and anatomical structures involved in their drainage path, in the coronal, sagittal and axial planes. Results and conclusions: Morphological changes were identified in the internal maxillary sinus septum, the Haller's cell, uncinate process and ethmoid bulla. It was noted the presence of internal septum and maxillary sinus Haller cells in 76.74% and 16.28% of individuals, respectively. The horizontal uncinate process was observed in 79.07% of the subjects and the vertical at 20.93%. In addition, bilateral ethmoid bullae were identified in 62.79% of the cases. The sinus anatomical variations occur mainly marked by prenatal and postnatal development, linked to the overall pneumatization neumocraneo and structures that inhibit or enable their development. Beam computed tomography cone provides images that allow visualization and proper evaluation of the maxillary sinus and osteomeatal complex.

J. Pinares Toledo

2012-04-01

252

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

Scientific Electronic Library Online (English)

Full Text Available SciELO Brazil | Language: English Abstract in portuguese 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.

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

253

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

Directory of Open Access Journals (Sweden)

Full Text Available 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 calibrated 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.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."

Andréia Perella

2003-09-01

254

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)

2010-06-01

255

Water-filled balloon in the postoperative resection cavity improves dose distribution to target volumes in radiotherapy of maxillary sinus carcinoma  

Science.gov (United States)

Postoperative radiotherapy is a major treatment for patients with maxillary sinus carcinoma. However, the irregular resection cavity poses a technical difficulty for this treatment, causing uneven dose distribution to target volumes. In this study, we evaluated the dose distribution to target volumes and normal tissues in postoperative intensity-modulated radiotherapy (IMRT) after placing a water-filled balloon into the resection cavity. Three postoperative patients with advanced maxillary sinus carcinoma were selected in this trial. Water-filled balloons and supporting dental stents were fabricated according to the size of the maxillary resection cavity. Simulation CT scans were performed with or without water-filled balloons, IMRT treatment plans were established, and dose distribution to target volumes and organs at risk were evaluated. Compared to those in the treatment plan without balloons, the dose (D98) delivered to 98% of the gross tumor volume (GTV) increased by 2.1 Gy (P = 0.009), homogeneity index (HI) improved by 2.3% (P = 0.001), and target volume conformity index (TCI) of 68 Gy increased by 18.5% (P = 0.011) in the plan with balloons. Dosimetry endpoints of normal tissues around target regions in both plans were not significantly different (P > 0.05) except for the optic chiasm. In the plan without balloons, 68 Gy high-dose regions did not entirely cover target volumes in the ethmoid sinus, posteromedial wall of the maxillary sinus, or surgical margin of the hard palate. In contrast, 68 Gy high-dose regions entirely covered the GTV in the plan with balloons. These results suggest that placing a water-filled balloon in the resection cavity for postoperative IMRT of maxillary sinus carcinoma can reduce low-dose regions and markedly and simultaneously increase dose homogeneity and conformity of target volumes.

Zhang, Qun; Lin, Shi-Rong; He, Fang; Kang, De-Hua; Chen, Guo-Zhang; Luo, Wei

2011-01-01

256

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

2001-03-01

257

Reliability of Periapical Radiographs and Orthopantomograms in Detection of Tooth Root Protrusion in the Maxillary Sinus: Correlation Results with Cone Beam Computed Tomography  

Directory of Open Access Journals (Sweden)

Full Text Available Objectives: The purpose of the present study was to investigate the reliability of both periapical radiographs and orthopantomograms for exact detection of tooth root protrusion in the maxillary sinus by correlating the results with cone beam computed tomography.Material and methods: A database of 1400 patients scanned with cone beam computed tomography (CBCT was searched for matching periapical (PA radiographs and orthopantogram (OPG images of maxillary premolars and molars. Matching OPG images datasets of 101 patients with 628 teeth and PA radiographs datasets of 93 patients with 359 teeth were identified. Four observers assessed the relationship between the apex of tooth root and the maxillary sinus per tooth on PA radiographs, OPG and CBCT images using the following classification: root tip is in the sinus (class 1, root tip is against the sinus wall (class 2 and root tip is not in the sinus (class 3.Results: Overall correlation between OPG and CBCT images scores was 50%, 26% and 56.1% for class 1, class 2 and class 3, respectively (Cohen’s kappa [weighted] = 0.1. Overall correlation between PA radiographs and CBCT images was 75.8%, 15.8% and 56.9% for class 1, class 2 and class 3, respectively (Cohen’s kappa [weighted] = 0.24. In both the OPG images and the PA radiographs datasets, class 1 correlation was most frequently observed with the first and second molars.Conclusions: The results demonstrated that both periapical radiographs and orthopantomograms are not reliable in determination of exact relationship between the apex of tooth root and the maxillary sinus floor. Periapical radiography is slightly more reliable than orthopantomography in determining this relationship.

Bassam A. Hassan

2010-01-01

258

IMRT vs. 3D Noncoplanar Treatment Plans for Maxillary Sinus Tumors: A New Tool for Quantitative Evaluation  

International Nuclear Information System (INIS)

We compared 9-field, equispaced intensity modulated radiation therapy (IMRT), 4- to 5-field, directionally optimized IMRT, and 3-dimensional (3D) noncoplanar planning approaches for tumors of the maxillary sinus. Ten patients were planned retrospectively to compare the different treatment techniques. Prescription doses were 60 to 70 Gy. Critical structures contoured included optic nerves and chiasm, lacrimal glands, lenses, and retinas. As an aid for plan assessment, we introduced a new tool: Critical Organ Scoring Index (COSI), which allows quantitative evaluation of the tradeoffs between target coverage and critical organ sparing. This index was compared with other, commonly used conformity indices. For a reliable assessment of both tumor coverage and dose to critical organs in the different planning techniques, we introduced a 2D, graphical representation of COSI vs. conformity index (CI). Dose-volume histograms and mean, maximum, and minimum organ doses were also compared. IMRT plans delivered lower doses to ipsilateral structures, but were unable to spare them. 3D plans delivered less dose to contralateral structures, and were more homogeneous, as well. Both IMRT approaches gave similar results. In cases where choice of optimal plan was difficult, the novel 2D COSI-CI representation gave an accurate picture of the tradeoffs between target coverage and organ sparing, even in cases where other conformity indices failed. Due to their unique anatomy, maxillary sinus tumors may benefit more from a noncoplanar approach than from IMRT. The new graphical representation proposed is a quick, visual, reliable tool, which may facilitate the physician's choice of best treatment plan for a given patient

2008-01-01

259

Combined therapy with surgery, radiation and chemotherapy for T3-T4 squamous cell carcinoma of maxillary sinus. National Cancer Center Hospital East experience  

International Nuclear Information System (INIS)

Since 1960's, many institutes treated carcinoma of maxillary sinus with combined therapy: surgery, radiation, and intra-arterial infusion chemotherapy in Japan. On the other hands, surgery followed by radiation or chemoradiation is the standard option of treatment for sinonasal carcinoma in western countries. This study reports the NCCHE's 14-year experience with maxillary squamous cell cancer, treated with surgical resection followed by radiation, or trimodal combination therapy. Eighty-seven previously untreated, T3-T4 status patients with squamous cell carcinoma of maxillary sinus underwent treatment at our division. During the average follow-up period of 85.9 months, the 5-year overall survival and local control rate were 47.3% and 60%, respectively. The 5-year overall survival among the patients had T3 and T4a tumor were 59.0% and 51.6%. However, all patients with T4b tumor died, their median survival time was 9.1 months. Almost all patients had T3 and T4b were treated with trimodal therapy, a third patient of T4a status underwent treatment with surgery followed by radiation. There was no difference in overall survival according to treatment in T4a patients. We should consider the other approach for treatment, like superselective high-dose cisplatin infusion with concomitant radiotherapy in patients with advanced cancer of maxillary sinus in future. (author)

2012-11-01

260

Estudio Morfométrico del Seno Maxilar Mediante Tomografías Computadorizadas: Evaluación de la Reconstrucción Total de Piso Sinusal Morphometric Study of Maxillary Sinus by Computed Tomography: Assessment of Sinus Floor Bone Reconstruction  

Directory of Open Access Journals (Sweden)

Full Text Available La rehabilitación con implantes dentales en maxila posterior es compleja debido a la presencia del seno maxilar con sus diferentes variaciones anatómicas; el objetivo de este trabajo fue determinar el volumen óseo intrasinusal necesario para realizar la instalación de uno o mas implantes dentarios sin invadir la membrana sinusal. En 22 cráneos fueron evaluados 40 senos maxilares mediante tomografías computadorizadas (TC realizando mediciones en los cortes axiales, coronales y sagitales. Se clasificaron los senos maxilares según el remanente de hueso alveolar y se instalo un implante de forma virtual en el lugar del primer molar superior, mediante el software implant view. Con estas medidas volumétricas finales se estableció las indicaciones reconstructivas intra sinusales a partir de los sitios donantes intrabucales mas frecuentemente evaluados en la literatura mundial. El grupo I (1mm a 4mm de reborde alveolar remanente presentaba déficit óseo de hasta 1,98cm3, el grupo II (4mm a 7mm presentaba déficit de 1,06cm3; el grupo III (7mm a 10mm presentaba un déficit de 0,67 cm3; a partir de estos resultados podemos concluir que los sitios intrabucales pueden ser utilizados en la mayoría de los grupo estudiados, incluyendo las reconstrucciones bilaterales.Rehabilitation with dental implants in posterior maxilla is difficult because of the presence of maxillary sinus with anatomical variations. The aim of this research was to evaluate the sinus volume to install one or more implants without invading the sinus membrane. Forty (40 maxillary sinuses were evaluated in 22 skulls by computed tomography measuring in the axial, coronal and sagittal slice. The sinus were classified according to the remaining alveolar bone and a dental implant in the place of the upper first molar was virtually installed by implant view software. With this final volumetric measurement the surgical indications were established for inlay reconstruction from intra oral donor sites frequently evaluated in world literature. Group I (1mm to 4mm of alveolar ridge showed a bone deficit of 1.98 cm3, group II (4mm to 7mm showed a deficit of 1.06 cm3; group III (7mm to 10mm showed a 0.67 cm3 deficit. In view of these results we concluded that intra oral donor site can be used for the three study groups and in some cases in bilateral reconstruction.

Paulo Hemerson de Moraes

2012-06-01

 
 
 
 
261

Estudio Morfométrico del Seno Maxilar Mediante Tomografías Computadorizadas: Evaluación de la Reconstrucción Total de Piso Sinusal / Morphometric Study of Maxillary Sinus by Computed Tomography: Assessment of Sinus Floor Bone Reconstruction  

Scientific Electronic Library Online (English)

Full Text Available SciELO Chile | Language: Spanish Abstract in spanish La rehabilitación con implantes dentales en maxila posterior es compleja debido a la presencia del seno maxilar con sus diferentes variaciones anatómicas; el objetivo de este trabajo fue determinar el volumen óseo intrasinusal necesario para realizar la instalación de uno o mas implantes dentarios s [...] in invadir la membrana sinusal. En 22 cráneos fueron evaluados 40 senos maxilares mediante tomografías computadorizadas (TC) realizando mediciones en los cortes axiales, coronales y sagitales. Se clasificaron los senos maxilares según el remanente de hueso alveolar y se instalo un implante de forma virtual en el lugar del primer molar superior, mediante el software implant view. Con estas medidas volumétricas finales se estableció las indicaciones reconstructivas intra sinusales a partir de los sitios donantes intrabucales mas frecuentemente evaluados en la literatura mundial. El grupo I (1mm a 4mm de reborde alveolar remanente) presentaba déficit óseo de hasta 1,98cm3, el grupo II (4mm a 7mm) presentaba déficit de 1,06cm3; el grupo III (7mm a 10mm) presentaba un déficit de 0,67 cm3; a partir de estos resultados podemos concluir que los sitios intrabucales pueden ser utilizados en la mayoría de los grupo estudiados, incluyendo las reconstrucciones bilaterales. Abstract in english Rehabilitation with dental implants in posterior maxilla is difficult because of the presence of maxillary sinus with anatomical variations. The aim of this research was to evaluate the sinus volume to install one or more implants without invading the sinus membrane. Forty (40) maxillary sinuses wer [...] e evaluated in 22 skulls by computed tomography measuring in the axial, coronal and sagittal slice. The sinus were classified according to the remaining alveolar bone and a dental implant in the place of the upper first molar was virtually installed by implant view software. With this final volumetric measurement the surgical indications were established for inlay reconstruction from intra oral donor sites frequently evaluated in world literature. Group I (1mm to 4mm of alveolar ridge) showed a bone deficit of 1.98 cm3, group II (4mm to 7mm) showed a deficit of 1.06 cm3; group III (7mm to 10mm) showed a 0.67 cm3 deficit. In view of these results we concluded that intra oral donor site can be used for the three study groups and in some cases in bilateral reconstruction.

de Moraes, Paulo Hemerson; Costa, Marcelo Victor Omena Caldas; Olate, Sergio; Caria, Paulo Henrique Ferreira; Barbosa, José Ricardo de Albergaria.

262

Primary small cell carcinoma of the maxillary sinus: a case report with immunohistochemical and molecular genetic study involving KIT and PDGFRA  

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Primary small cell carcinoma of the nose and paranasal sinuses is very rare; only a few reports are present in the English literature. The author herein reports a very rare case of primary small cell carcinoma of the maxillary sinus with an emphasis on immunohistochemistry and on KIT and PDGFRA. A 64-year-old man was admitted to our hospital because of left nasal obstruction. Endoscopy revealed three nasal polyps, and imaging modalities revealed an infiltrative tumor (45 x 45 mm) in the left ...

Terada, Tadashi

2012-01-01

263

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

Digital Repository Infrastructure Vision for European Research (DRIVER)

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...

2011-01-01

264

Benign neurilemmoma in the infratemporal fossa involving maxillary sinus and pterygopalatine fossa  

International Nuclear Information System (INIS)

Neurilemmoma is a benign tumor of the nerve sheath that arises on cranial and spinal nerve roots as well as along the course of peripheral nerves. A case of a neurilemmoma that arose in the left infratemporal fossa of a 29- year-old male was presented. Plain radiographs, enhanced computed tomography scan, and magnetic resonance imaging demonstrated a large, well-circumscribed, heterogeneously enhanced mass with extension into the pterygopalatine fossa. Displaced by the large mass, bowing-in of the posterior maxillary antral wall was noted and a provisional diagnosis of a benign soft tissue tumor was made. The mass was completely excised and a diagnosis of neurilemmoma was confirmed.

2004-12-01

265

Benign neurilemmoma in the infratemporal fossa involving maxillary sinus and pterygopalatine fossa  

Energy Technology Data Exchange (ETDEWEB)

Neurilemmoma is a benign tumor of the nerve sheath that arises on cranial and spinal nerve roots as well as along the course of peripheral nerves. A case of a neurilemmoma that arose in the left infratemporal fossa of a 29- year-old male was presented. Plain radiographs, enhanced computed tomography scan, and magnetic resonance imaging demonstrated a large, well-circumscribed, heterogeneously enhanced mass with extension into the pterygopalatine fossa. Displaced by the large mass, bowing-in of the posterior maxillary antral wall was noted and a provisional diagnosis of a benign soft tissue tumor was made. The mass was completely excised and a diagnosis of neurilemmoma was confirmed.

Choi, Jin Woo; Heo, Min Suk; Lee, Jin Koo; Yi, Won Jin; Lee, Sam Sun; Choi, Soon Chul [Seoul National University College of Medicine, Seoul (Korea, Republic of); An, Chang Hyeon [Kyungpook National University College of Medicine, Daegu (Korea, Republic of)

2004-12-15

266

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.

2011-03-01

267

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)

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.

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

268

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)

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

Jensen, Thomas; Schou, Søren

2012-01-01

269

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)

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

Jensen, Thomas; Schou, Søren

2012-01-01

270

Sinus Surgery  

Medline Plus

Full Text Available ... a swollen or overgrown mucosa, known as a ‘polyp.’ Polyps can result from repeated infections and inflammation of ... sinus obstruction. This may require the removal of polyps that are blocking the openings of the sinuses. ...

271

Sinus Surgery  

Medline Plus

Full Text Available ... can cause inflammation of the mucosa and can block the drainage system of the sinus cavities. This ... injury. If the septum is deviated it can block the sinus opening. Turbinates are bones that hang ...

272

Evaluation of radiotherapy after incomplete surgery in patients with carcinoma of the maxillary sinus  

International Nuclear Information System (INIS)

The retrospective analysis of 57 patients with cancer of the maxillary antrum irradiated after incomplete surgery was performed is described. The majority of patients had very advanced disease (54% T4 tumors). In 18 patients partial resection of maxillary antrum was performed: 39 patients underwent total maxillectomy. In 35 patients macroscopic residual tumor (MRT) was present after surgery. All patients were irradiated postoperatively with "6"0Co teletherapy and received a dose of 60 Gy in 20-30 fractions over 4-6 weeks. Five year symptom-free survival in the whole group was 35%. An analysis of pattern of relapses indicates that histology should be regarded as an important factor of management. In keratinizing squamous cell cancer, local control remains the main problem. In patients with nonkeratinizing squamous cell cancer, both local and regional control is important and elective irradiation of neck nodes may be of value. In patients with undifferentiated cancer, distant metastases appear to have the greatest impact on survival

1985-01-01

273

Use of Homologous Bone Grafts in Maxillary Sinus Lifting / Uso de Injertos de Hueso Homólogo en la Elevación del Seno Maxilar  

Scientific Electronic Library Online (English)

Full Text Available SciELO Chile | Language: English Abstract in spanish De hueso homólogo se ha considerado una alternativa viable en la reconstrucción ósea en la zona posterior del maxilar para cirugías de la elevación del seno maxilar. El objetivo de este estudio fue el desempeño de una revisión de la literatura sobre las ventajas y riesgos inherentes en el uso de inj [...] erto de hueso homólogo proveniente del banco de tejidos para la cirugía de elevación del seno maxilar. Una revisión de la literatura se hizo en MEDLINE (PubMed), Scielo, Scopus y Lilacs, y en base a manuscritos y libros publicados desde 1980 hasta 2010. Después de leer los títulos y resúmenes de los manuscritos, 69 estudios fueron seleccionados debido a su correlación con el objetivo de este estudio. El uso de injertos homólogos de los bancos de hueso mostró un mayor potencial osteogénico y una remodelación lento por lo menos en comparación con otros injertos para aumentar el volumen del hueso posterior del maxilar superior en la cirugía de elevación del seno maxilar. Abstract in english Homologous bone has been considered a viable alternative in bone reconstruction in the posterior maxillary area to perform surgeries for the maxillary sinus lifting. The aim of this study was to perform a literature review about the advantages and risks inherent in the use of homologous bone graft c [...] oming from the tissue bank to perform the surgery for maxillary sinus lifting. A literature review was conducted on MEDLINE (PubMed), Scielo, Scopus and Lilacs, and based on manuscripts and books published from 1980 to 2010. After reading the titles and abstracts of the manuscripts, 69 studies were selected because of their correlations with the aim of the current study. The use of homologous grafts from bone banks showed greater osteogenic potential and a slow remodeling least compared to other grafts to increase the volume of the posterior bone of the maxilla in surgery for maxillary sinus lifting.

Ana Cláudia, Rossi; Alexandre Rodrigues, Freire; Mário Roberto, Perussi; Paulo Henrique Ferreira, Caria; Felippe Bevilacqua, Prado.

274

Wegener's granulomatosis of the maxillary sinus: CT evaluation - report of two cases-  

International Nuclear Information System (INIS)

Wegener's granulomatosis is a specific vasculitis described by Klinger in 1931 and Wegener in 1939 as being different from periarteritis nodosa. Wegener's gramulomatosis involving the paranasal sinuses is relatively rare and few cases are reported in the Korean literature. However, CT evaluation has been lacking in the Korean literature. Although radiological evaluations were performed in the previous reports, they were not studied by CT. Only one report of the CT evaluation is available in the literature. Since the author observed somewhat different CT manifestations compared with the previous report, the CT findings with a brief review of the literature are presented. Although the difference from the previously reported series by Paling is not clear, it may be affected by differences in he duration of illness and severity of the disease

1991-03-01

275

Wegener's granulomatosis of the maxillary sinus: CT evaluation - report of two cases-  

Energy Technology Data Exchange (ETDEWEB)

Wegener's granulomatosis is a specific vasculitis described by Klinger in 1931 and Wegener in 1939 as being different from periarteritis nodosa. Wegener's gramulomatosis involving the paranasal sinuses is relatively rare and few cases are reported in the Korean literature. However, CT evaluation has been lacking in the Korean literature. Although radiological evaluations were performed in the previous reports, they were not studied by CT. Only one report of the CT evaluation is available in the literature. Since the author observed somewhat different CT manifestations compared with the previous report, the CT findings with a brief review of the literature are presented. Although the difference from the previously reported series by Paling is not clear, it may be affected by differences in he duration of illness and severity of the disease.

Kim, Yong Hyun [Masan Korea General Hospital, Masan (Korea, Republic of)

1991-03-15

276

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)

Full Text Available SciELO Brazil | Language: English Abstract in portuguese 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.

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

277

Maxillary sinus lift with intraoral autologous bone and B - Tricalcium Phosphate: Histological and histomorphometric clinical study  

Scientific Electronic Library Online (English)

Full Text Available SciELO Spain | Language: English Abstract in spanish Intoducción: La rehabilitación con implantes en el maxilar superior supone en muchas ocasiones un reto debido a la escasez y pobre calidad del hueso remanente. Se han descrito diferentes tipos de injertos para tratar de solucionar estos problemas. Objetivo: Valorar el potencial osteoconductivo de un [...] a mezcla de hueso autólogo y B-Fosfato Tricálcico, en el tratamiento mediante implantes de maxilares superiores atróficos. Diseño: Se trataron 22 pacientes mediante la técnica de "elevación de seno". Todos los pacientes presentaron un hueso residual igual o mayor a 5 mm., y se realizó la elevación de seno y la instalación del injerto (hueso autólogo y B-Fosfato Tricálcico) y los implantes en un mismo tiempo quirúrgico. Durante la exposición de los implantes, tras la osteointegración, se tomaron muestras del hueso, mediante una trefina, en 5 pacientes. Se procesaron para su inclusión en parafina y se analizó su estructura y los porcentajes titulares presentes. Con los datos obtenidos se realizo un análisis estadístico descriptivo. Resultados: Se demostró la integración de las 42 fijaciones instaladas. El análisis histológico demostró una buena integración del B-Fosfato Tricálcico en el hueso neoformado así como la ausencia de inflamación. El análisis morfométrico demostró una proporción media de hueso del 30,7% (rango 22,8 - 50,6). Conclusiones: Los resultados sugieren que el material osteoconductivo B-Fosfato Tricálcico asociado con hueso autólogo obtenido mediante filtración, es un injerto adecuado para el tratamiento con implantes de maxilares atróficos, cuando se combina con el procedimiento de elevación de seno. Abstract in english Introduction: Rehabilitation with implants in the upper maxilla often implies a challenge due to the shortage and quality of the remaining bone. Different kinds of grafts have been described in an endeavour to solve these problems. Aim: The purpose of this study was to assess the osteoconduction pot [...] ential of an autogenous bone and B-Tricalcium Phosphate mixture, in the treatment of atrophic upper maxillae. Materials and Methods: 22 patients were treated using the "sinus lift" technique. All patients had residual bone equal to or greater than 5 mm, the sinus was lifted, bone grafted and implants installed during the same surgical procedure (autologous bone and B- Tricalcium Phospahate). During the implant exposure after the osseointegration period, samples of regenerated bone were taken using a trephine from 5 patients. Paraffin-embedded sections were analysed the structure and tissues percentages. Data were estimated statistically. Results: Clinical results showed integration of the 42 fixtures installed. Histological analysis showed good integration of the -Tricalcium Phosphate in the newly formed bone likewise absence of inflammation. Histomorphometric analysis showed a mean bone proportion of 30.7% (range 22.8% - 50.6%). Conclusions: Results suggest the osteoconductive material B-Tricalcium Phosphate associated with autologous bone obtained through filtration is an appropriate graft for implant treatment of atrophic maxillae, in combination with the sinus lift procedure.

Aguirre Zorzano, Luis Antonio; Rodríguez Tojo, María José; Aguirre Urizar, José Manuel.

278

Adenocarcinoma renal metastásico en seno maxilar / Maxillary sinus metastasis of renal cell carcinoma  

Scientific Electronic Library Online (English)

Full Text Available SciELO Spain | Language: Spanish Abstract in spanish Los tumores metastásicos en senos paranasales y fosas son excepcionales. Se han descrito en la literatura unos 50 casos localizados en seno maxilar. El adenocarcinoma renal es la neoplasia primaria que más frecuentemente metastatiza en la región nasosinusal, seguido de tumores mamarios y pulmonares. [...] Presenta una sintomatología inespecífica siendo la epistaxis el síntoma más frecuente debido a la gran vascularización tumoral. Tienen un pronóstico pobre con una tasa de supervivencia en torno al 15-30% a los 5 años. El tratamiento de elección es la cirugía. Abstract in english Paranasal sinuses and nose metastasis are very uncommon tumors, about 50 have been reported. Renal cell carcinoma is the primary neoplasm which most frequently metastasizes in the nasosinusal region, followed by breast and lug. Symptoms are unspecific, but the epistaxis constitutes the most common s [...] ign due to the significant vascularizations of the tumor. Prognosis is poor. The survival rate fluctuates between 15-30% at 5 years. Surgery is the elective treatment.

B., Torres Muros; J.R., Solano Romero; J.G., Rodríguez Baró; R., Bonilla Parrilla.

279

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)

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.

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

2012-06-15

280

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

International Nuclear Information System (INIS)

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.

2012-06-01

 
 
 
 
281

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)

Full Text Available SciELO Brazil | Language: English Abstract in portuguese 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

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

2014-07-04

282

CT and MRI findings in mucoceles of paranasal sinuses and their diagnostic value  

International Nuclear Information System (INIS)

Objective: To study the CT and MRI findings of mucoceles of paranasal sinuses and their value in differential diagnosis between mucoceles and tumors. Methods: Twenty-two cases including 37 mucoceles were studied. CT was performed in all and MRI was performed in 10 cases. CT and MRI findings were analysed and correlated with operative findings. Results: Of 37 mucoceles, 19 were found in ethmoid sinuses, 9 in frontal sinuses, 5 in sphenoid sinuses and 4 in maxillary sinuses. Sinus expansion and thinning of sinus walls were found in all 37 sinuses with mucoceles on CT. Bony defect in sinus wall was found in 24 sinuses resulting in protrusion of the mucoceles into adjacent structures. CT showed low density with respect to muscle in 26 sinuses, identical density in 6 sinuses and high density in 5 sinuses and peripheral sinus mucosa enhancement in 7 cases. On MRI, the mucocele contents exhibited various signal intensities on T1- and T2-weighted images according to the protein concentration. Eight cases who underwent contrast study showed peripheral mucosa enhancement. Conclusions: CT and MRI can accurately display the location and characteristic findings of mucoceles and play an important role in diagnosis and differential diagnosis

1999-04-01

283

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)

Full Text Available SciELO Chile | Language: Spanish Abstract in spanish 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 obs

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

284

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)

Full Text Available SciELO Spain | Language: Spanish Abstract in spanish 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.

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

285

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  

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Full Text Available 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. La presencia de septos en el seno maxilar es muy variable, pudiendo presentarse única o múltiple y en diferentes localizaciones anatómicas en relación a la zona de las raíces de las piezas maxilares antrales en pacientes dentados o desdentados, desde la zona canina hasta el segundo molar. Diversos autores, han descrito diferentes valores de la prevalencia en relación a la presencia de septos intra-sinusales en base a imagenología tridimensional o in vivo en estudios cadavéricos. El objetivo del presente estudio, es realizar una revisión exhaustiva de la literatura desde 1997 hasta noviembre del 2010 en relación a la prevalencia de septos en el seno maxilar y su localización según método de visualización, y el reporte de un caso con una nueva técnica de abordaje quirúrgico que permite una visualización intra y extrasinusal para la localización del septo del seno maxilar in vivo.Surgery of the maxillary sinus in procedures as elevation of the sinus membrane and bone graft, with or without simultaneous implants in the subantral area, is becoming a more standard procedure in oral implants each time. One of the most common complications in this type of procedure is the approach of the sinus lateral wall, with presence of undiagnosed intra-sinus septa with perforation of the membrane during sinus elevation. The presence of septa in the maxillary sinus is variable, presenting as single or multiple in different locations with relation to the rots in maxillary pieces in dentate or edentulous patients. Various authors have described different values in the prevalence of the intra sinus septum presence, based on three dimensional imaging studies, or the in vivo study of cadavers. The aim of this study is an exhaustive review of the literature since 1997 to November of 2010 in reference to the prevalence of maxillary sinus septa and their location according to observation methods, and the report of a case with innovative surgical approach technique, that allows intra and extra sinus visualization for in vivo maxillary sinus septum location.

Víctor Javier Beltrán Varas

2011-06-01

286

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  

Scientific Electronic Library Online (English)

Full Text Available SciELO Chile | Language: Spanish Abstract in spanish 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. La presencia de septos en el seno maxilar es muy variable, pudiendo presentarse única o múltiple y en diferentes localizaciones anatómicas en relación a la zona de las raíces de las piezas maxilares antrales en pacientes dentados o desdentados, desde la zona canina hasta el segundo molar. Diversos autores, han descrito diferentes valores de la prevalencia en relación a la presencia de septos intra-sinusales en base a imagenología tridimensional o in vivo en estudios cadavéricos. El objetivo del presente estudio, es realizar una revisión exhaustiva de la literatura desde 1997 hasta noviembre del 2010 en relación a la prevalencia de septos en el seno maxilar y su localización según método de visualización, y el reporte de un caso con una nueva técnica de abordaje quirúrgico que permite una visualización intra y extrasinusal para la localización del septo del seno maxilar in vivo. Abstract in english Surgery of the maxillary sinus in procedures as elevation of the sinus membrane and bone graft, with or without simultaneous implants in the subantral area, is becoming a more standard procedure in oral implants each time. One of the most common complications in this type of procedure is the approac [...] h of the sinus lateral wall, with presence of undiagnosed intra-sinus septa with perforation of the membrane during sinus elevation. The presence of septa in the maxillary sinus is variable, presenting as single or multiple in different locations with relation to the rots in maxillary pieces in dentate or edentulous patients. Various authors have described different values in the prevalence of the intra sinus septum presence, based on three dimensional imaging studies, or the in vivo study of cadavers. The aim of this study is an exhaustive review of the literature since 1997 to November of 2010 in reference to the prevalence of maxillary sinus septa and their location according to observation methods, and the report of a case with innovative surgical approach technique, that allows intra and extra sinus visualization for in vivo maxillary sinus septum location.

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

287

Computed tomographic appearances of paranasal sinus aspergillosis  

International Nuclear Information System (INIS)

The computed tomographic (CT) appearances of paranasal sinus aspergillosis in two cases were reported. Conventional radiographs of the paranasal sinuses of these cases revealed unilateral opacification of the maxillary sinus with bony destruction of the medial antral wall around the natural ostium and ethomoid-maxillary plate. CT demonstrated a soft tissue mass of the maxillary sinus, a relatively well-defined bony destruction of the medial maxillary wall with bony flagments, and reactive thickening of the remaining maxillary walls. Paranasal sinus aspergillosis should be suggested in all cases of prolonged unilateral sinus opacification with or without bony destruction. (author)

1986-01-01

288

Anomalous Morphology of an Ectopic Tooth in the Maxillary Sinus on Three-Dimensional Computed Tomography Images  

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We describe a case of an incidentally-diagnosed ectopic tooth showing anomalous morphology in the maxillary antrum, using three-dimensional reconstruction of computed tomography images of the tooth obtained by multi-detector computed tomography.

Lai, Yee-tak Alta; Luk, Yiu Shiobhon; Fung, Kai-hung

2013-01-01

289

Maxillary metastasis of osteosarcoma.  

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Osteosarcoma, either primary or metastatic, rarely involves the jaws. Though only a few cases of mandibular metastasis of osteosarcoma have been reported, only one case of et al maxillary involvement (Singh, 1978) has been reported. A case of 21 year old boy with metastasis of osteosarcoma to the right maxilla from primary osteosarcoma of the left femur is presented. The patient complained of pain and swelling in the left maxillary region which was earlier diagnosed as maxillary sinusitis on ...

Dayal P; Patil S; Suvarna P; Srinivasan S

1997-01-01

290

Maxillary sinus floor elevation using a combination of DFDBA and bovine-derived porous hydroxyapatite: a preliminary histologic and histomorphometric report.  

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The objective of the study was to determine the osteoconductive potential of bovine-derived porous hydroxyapatite (HA) in combination with demineralized freeze-dried bone allograft (DFDBA) as an alternative to autogenous grafting in the maxillary sinus. The study involved 5 patients treated with 2-stage sinus elevation procedures using a combination of DFDBA and Osteograf/N 300 and 700. The healing time before implant placement ranged from 6 to 13 months. At the time of reentry, a bone core was harvested from each patient and processed for histologic and histomorphometric analysis. Woven and lamellar bone formation was evident in all specimens. Mean trabecular bone volume was 27.92%. The amount of newly formed bone was positively correlated with healing time. The range of new bone formation was 5.36% (6 mo) to 43.68% (12 mo). Residual HA graft particles were evident in all specimens, and the amount was inversely correlated with time. HA particles were often surrounded by an intense inflammatory infiltrate. DFDBA particles, largely present in the 6-month biopsy, were not recognizable in the 10-, 12-, and 13-month specimens, suggesting complete replacement. The combination of Osteograf/N and DFDBA appears to be osteoconductive and may be considered a valid alternative to autogenous bone grafts in sinus lift procedures. Histomorphometric and histologic evaluation may also be used to monitor the status of the future implant site. PMID:11203594

Landi, L; Pretel, R W; Hakimi, N M; Setayesh, R

2000-12-01

291

Sinus Surgery  

Medline Plus

Full Text Available ... bacteria and dust. The sinuses are lined by special cells called mucosa that secrete ‘mucus’ which helps ... for your specific condition. ©1995-2009, The Patient Education Institute, Inc. www.X-Plain.com ol020104 Last ...

292

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)

Full Text Available SciELO Chile | Language: Spanish Abstract in spanish 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.

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

293

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  

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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 obstrucción 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.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 enlargement 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.

Alfredo Naser G

2009-08-01

294

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

DEFF Research Database (Denmark)

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.

Jensen, Thomas; Schou, Søren

2012-01-01

295

Maxillary sinus floor elevation surgery with BioOss® mixed with a bone marrow concentrate or autogenous bone: test of principle on implant survival and clinical performance.  

Science.gov (United States)

The purpose of this study was to assess implant survival and 1-year clinical performance of implants placed in the posterior maxilla that had been subjected to maxillary sinus floor elevation surgery with bovine bone mineral (BioOss®) mixed with autogenous bone marrow concentrate or autogenous bone. In a randomized, controlled, split-mouth design study, a bilateral sinus floor augmentation procedure was performed in 12 edentulous patients. At random, one side was treated with BioOss® seeded with an iliac crest bone marrow concentrate enriched in mesenchymal stem cells (test side) and the other with BioOss® mixed with autogenous bone (control side). Three to four months after augmentation, 66 implants were placed. Implant survival, plaque, gingival, and bleeding indices, probing depth, and peri-implant radiographic bone levels were assessed at baseline and 12 months after functional loading. During osseointegration, three implants failed on the test side (two patients) and no implants failed on the control side, resulting in 3-month survival rates of 91% and 100%, respectively. No implants were lost after functional loading and no differences in soft tissue parameters or peri-implant bone loss were observed between the control and test sides. After 1 year in function, no clinically relevant differences were observed regarding soft tissue parameters or peri-implant bone loss. PMID:24183511

Rickert, D; Vissink, A; Slot, W J; Sauerbier, S; Meijer, H J A; Raghoebar, G M

2014-02-01

296

Maxillary mucocele with proptosis and visual impairment: a late complication of Le Fort III distraction.  

Science.gov (United States)

Maxillary mucoceles are a relatively rare entity especially following surgical procedures involving osteotomies of the maxilla. The etiology of maxillary mucoceles has been ascribed to facial trauma (fractures), sinus surgery, and chronic inflammatory diseases or infections. Mucoceles can follow injury to the sinus mucosa and/or sinus outflow tract with a resulting expansile cystic mass. The clinical presentation ranges from swelling, pain, a palpable mass, proptosis, enophthalmos, and diplopia. The treatment involves either open or endoscopic incision and drainage of the cyst, mucosal resection, and an antrostomy for drainage.We report the case of a patient with Pfeiffer syndrome who underwent Le Fort III distraction osteogenesis and developed a symptomatic mucocele 15 years postoperatively. PMID:24220390

Patel, Parit A; Warren, Stephen M; McCarthy, Joseph G

2013-11-01

297

Recovery of Interfering Bacteria in the Nasopharynx following Antimicrobial Therapy of Acute Maxillary Sinusitis with Telithromycin or Amoxicillin-Clavulanate  

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The effect on the nasopharyngeal flora of 7 days of amoxicillin-clavulanate or 5 days of 800 mg once a day was studied in 50 adults with acute sinusitis. The numbers of potential pathogens and interfering alpha-hemolytic streptococci were equally reduced after both therapies. However, the number of interfering Prevotella spp. declined more significantly after amoxicillin-clavulanate treatment.

Brook, Itzhak; Hausfeld, Jeffrey N.

2005-01-01

298

Presencia de Quistes de Retención Mucoso del Seno Maxilar Detectados por Radiografías Panorámicas en Pacientes de la Ciudad de Temuco, Chile Presence of Mucus Retention Cysts in Maxillary Sinus Detected by Panoramic Radiographs on Patients of Temuco, Chile  

Directory of Open Access Journals (Sweden)

Full Text Available Los quistes de retención mucoso son una patología muy poco frecuente en el seno maxilar, perode fácil detección en radiografías panorámicas. El propósito de este estudio fue cuantificar los casos de mucoceles en senos maxilares durante un periodo de 5 meses, observando su frecuencia por edad y sexo. Se encontró una prevalencia de 2.06% en 339 radiografías revisadas, observándose mayor frecuencia en el género masculino y a una edad promedio de 30 años. Todos los casos no manifestaron sintomatología alguna.Mucus retention cyst are a pathology with very low frequency in maxillary sinus, but easy to detect in panoramic radiographs. The aim of this study was quantify mucocele cases in maxillary sinus along five months, detecting their frequency by age and sex. It was found a prevalence of 2.06%, noting more frequently in male sex and with an average age of 30. All cases were presented without previous symptomatology.

Ramón Fuentes Fernández

2008-09-01

299

A rare case of recurring calcifying epithelial odontogenic cyst in the maxillary sinus: a case report and literature review.  

Science.gov (United States)

Calcifying epithelial odontogenic cyst (CEOC) is an odontogenic cyst with epithelial lining. CEOC is a rare entity that occurs in a wide age range, does not show any gender predilection, and accounts for only 1% of all jaw cysts. The lesion generally occurs in the region anterior to maxillary and mandibular molars and either intraosseously or extraosseusly. This entity might present as a cystic or solid lesion. Enucleation is the recommended treatment for a simple, unicystic CEOC. A case of recurring CEOC in the right maxilla antrum is presented here. The patient presented to the authors after postsurgical recurrence. The case was evaluated thoroughly, and the cyst was resolved. PMID:24064174

Karun, Vinayak; Mishra, Amit Kumar; Saikhedkar, Rashmi

2013-01-01

300

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)

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 

Jensen, Thomas; Schou, Søren

2013-01-01

 
 
 
 
301

[Maxillary actinomycosis and maxillary candidiasis in the immunocompetent patient].  

Science.gov (United States)

Two distinct cases of maxillary actinomycosis and maxillary candidosis in immunocompetent hosts are reported; These infections are rare and similar to mycotic extramucosal non allergic sinusitis. Microbiology and microscopic examination are mandatory to prompt and successful management. Endoscopic endonasal surgery by middle meatotomy seems to be an adequate treatment for these particular entities. PMID:9770038

Rombaux, P; Degols, J C; Hamoir, M; Garbar, C; Bertrand, B; Eloy

1998-01-01

302

The current status of the treatment for T4 maxillary sinus cancer in Japan. A multi-institutional retrospective observation study  

International Nuclear Information System (INIS)

The purpose of this study was to assess the current status in Japan of the treatment for squamous cell carcinoma of the T4 maxillary sinus (MS-SCC) and its use to plan clinical trials in the future. The data for 128 patients with previously untreated MS-SCC were obtained from 28 institutions from 2006 to 2007. Of the 128 patients, 118 patients with curative intent were included in an analysis of the treatment and its results. Of the 118 patients, 73 patients had T4a disease, and 45 with T4b. Thirty-nine patients (33.1%) were treated with total maxillectomy, 25 (21.2%) with partial maxillectomy, 22 patients (18.6%) with RADPLAT, 19 patients (16.1%) with IV-CRT, and 13 patients (11.0%) with others. The 5-year overall survival rate and local control rate for 118 patients were 49.8% and 48.9%, respectively. The 5-year overall survival rates for patients with T4aN0M0 and T4bN0M0 were 67.5% and 29.8%, respectively. This study was retrospective, but we could understand the tendency of treatment choice and treatment results. It will be useful information to plan clinical trials in the future. (author)

2013-10-01

303

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)

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.

Jensen, Thomas; Schou, S

2012-01-01

304

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)

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.

Jensen, T; Schou, S

2012-01-01

305

The occurrence of molds in patients with chronic sinusitis.  

Science.gov (United States)

Chronic rhinosinusitis (CRS) is a common inflammatory condition of nasal and paranasal sinus mucosa. Although pathogenic bacteria were postulated as main etiological factor responsible for most cases of CRS, the involvement of molds was recently proved in some cases. The aim of the study was to conduct mycological analysis of material obtained from patients operated on due to chronic sinusitis. The study included 107 patients, 45 women and 62 men. During the surgery, a fragment of mucosa from the region of the ethmoid bulla was obtained as microbiological characteristics of this material closely resemble those of sinus mucosa. In addition, maxillary sinus lavage was obtained. The control group comprised patients without chronic sinusitis. The dithiothreitol solution method was used for the lavage examination. The tissue material (mucosal fragment from the region of the ethmoid bulla) was incubated in 2% liquid Sabouraud medium for 24 h. The material was inoculated onto culture media. The presence of molds was detected in 67% of examined samples. Overall, 41 species belonging to 12 genera were isolated. The most frequently detected genera included Penicillium spp. (46%) and Aspergillus spp. (16%). In addition, Cladosporium spp. (11%), Fusarium spp. (7%), Acremonium spp. (4%), Eurotium spp. (4%), Alternaria spp. (2%), Chaetomium spp. (1%), Geotrichum spp. (1%), Verticillium spp. (1%), Rhizopus spp. (1%), and some unidentified colonies (5%) were isolated. Penicillium crustosum, Penicillium citrinum, Aspergillus niger, Cladosporium cladosporioides, and Fusarium verticillioides were the most prevalent species. PMID:24121778

Twaru?ek, Magdalena; Soszczy?ska, Ewelina; Winiarski, Piotr; Zwierz, Aleksander; Grajewski, Jan

2014-05-01

306

The role of functional sinus surgery for treatment of antrochoanal polyp  

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Antrochoanal polyp (ACP) is a benign lesion which arises from the mucosa of maxillary sinus, fills it and expands through natural ostium towards choana protruding in the epipharynx. Objective: to present our experience in endoscopic surgery of ACP. Material and methods: prospective study included 24 patients operated at the Institute of Otorinolaryngology and Maxillofacial surgery, Clinical Center of Serbia, Belgrade, in the period 2002- 2004. Subjective symptoms, endoscopic and CT findings w...

Pen?er I.; Dudvarski Z.; Janoševi? Lj.; Miki? A.; Vuji?i? Z.

2007-01-01

307

Computed tomography of postoperative maxillary cyst  

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We evaluated the computed tomographic (CT) findings of 15 cases of postoperative maxillary cysts in comparison with 7 cases of malignant tumors of maxillary sinus. The characteristic CT appearance of the postoperative maxillary cyst was a well-defined round expansile mass. The margin of the bone defect was smooth with a thinned and expanded outer bony shell. These CT findings should strongly suggest the diagnosis of postoperative maxillary cyst in patients with previous history of surgery for maxillary sinusitis (usually 10-40 years previously).

Kimoto, Tatsuya; Nakata, Hajime; Nagano, Ryuji (Univ. of Occupational and Environmental Health, Kitakyushu, Fukuoka (Japan))

1984-07-01

308

Postoperative Maxillary Cyst: A Case Report  

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Postoperative maxillary cyst is a quite rare delayed complication of surgical intervention associated with maxillary sinuses. It occurs many years after surgery. This paper describes a 54-year-old woman presenting with swelling of left cheek for seven-years duration. The orthopantomograph revealed a unilocular cystic radiolucency with well-defined margins in left maxillary sinus. In the computerized tomography, the cyst had a sclerotic wall with bony condensations. Aspiration cytology reveale...

Asiye ?afak Bulut; Celal ?ehlaver; Alp Korkut Perçin

2010-01-01

309

Bilateral aplasia of paranasal sinuses.  

Science.gov (United States)

Paranasal sinus anatomical anomalies with unknown etiology are common. Maxillary and/or frontal sinus aplasia or hypoplasia are more common than the other types. Although there are some reports about paranasal sinus anomalies in the literature, there is no case similar to ours, with total paranasal sinus aplasia. Here, we present a unique case of total paranasal sinus aplasia with a symptom of fullness on the face. PMID:22159883

Celebi, Saban; Taskin, Umit; Altin, Fazilet; Ozkul, M Haluk

2012-03-01

310

Tercer molar ectópico a nivel de región infraorbitaria-seno maxilar Ectopic third molar of the maxillary sinus-infraorbital region  

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Full Text Available Introducción. Los cordales ectópicos son aquellos incluidos en posiciones inusuales o desplazados a distancia de su normal localización anatómica. La erupción ectópica de un diente dentro de la cavidad oral es común pero en otros lugares es raro. La erupción ectópica puede ir asociada con alteraciones en el desarrollo, procesos patológicos o yatrogenia. Caso Clínico. Mujer de 56 años de edad con tercer molar superior derecho ectópico a nivel de región infraorbitaria-seno maxilar. Presentaba dolor e inflamación hemifacial derecha de larga evolución y resistente a tratamiento médico. Se realizó exéresis quirúrgica de dicho cordal mediante abordaje de Caldwell-Luc. Discusión. En muchos casos la etiología de un cordal ectópico no puede ser identificada. La mayor parte de las veces son asintomáticos y diagnosticados mediante estudios radiológicos. Conclusión. La indicación de la exodoncia en el caso de un diente ectópico en general viene determinada por la presencia de sintomatología o en prevención de futuras complicaciones.Introduction. Ectopic third molar teeth are those that are impacted in unusual positions, or that have been displaced and are at a distance from their normal anatomic location. Ectopic eruption of a tooth within the oral cavity is common, but rare in other sites. Ectopic eruption can be associated with developmental disturbances, pathologic processes or iatrogenic activity. Case Report. Female, fifty-six years old, with an upper right ectopic third molar located in the maxillary sinus-infraorbital region. She presented with pain and inflammation of the right side of her face that she had been experiencing for along time and which had been resistant to treatment. Surgical excision was carried out of the third molar tooth using the Caldwell-Luc approach. Discussion. In many cases the etiology of ectopic third molars cannot be identified. Generally they are asymptomatic and diagnosed by radiology studies. Conclusion. The indication for extraction in ectopic teeth cases is in general determined by the presence of symptomatology, or by the need for preventing future complications.

C. Moreno García

2007-06-01

311

Assessment of the relationship between the maxillary molars and adjacent structures using cone beam computed tomography  

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This study investigated the relationship between the roots of the maxillary molars and the maxillary sinus using cone beam computed tomography (CBCT), and measured the distances between the roots of the maxillary molars and the sinus floor as well as the thickness of the bone between the root and the alveolar cortical plate. The study sample consisted of 83 patients with normally erupted bilateral maxillary first and second molars. A total of 332 maxillary molars were examined using CBCT images. The vertical relationship of each root with the maxillary sinus was classified into four types on CBCT cross-sectional images. The distance between the sinus floor and root and the bone thickness between the root and alveolar cortical plate were measured. In the buccal roots of the maxillary molars, a root protruding into the sinus occurred most frequently. A root projecting laterally along the sinus cavity was most common in the palatal roots of the maxillary first molars. The mesiobuccal roots of the maxillary second molar were closest to the sinus. The mesiobuccal roots of the first molars were closest to the cortical plate. The relationship between the roots of the maxillary molars and the sinus differed between the buccal and palatal roots. A root protruding into the sinus occurred more frequent in the buccal roots of the maxillary molars. The mesiobuccal root of the maxillary second molar was closest to the maxillary sinus floor and farthest from the alveolar cortical plate.

Jung, Yun Hoa; Cho, Bong Hae [Dept. of Oral and Maxillofacial Radiology, College of Dentistry, Pusan National University, Yangsan (Korea, Republic of)

2012-09-15

312

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

International Nuclear Information System (INIS)

A 54-year-old man presented with an incidentally identified intensely hypermetabolic lesion (SUVmax: 22.2 g/mL) in the left maxillary sinus on 18F-fluorodeoxyglucose positron emission tomography/computed tomography (18F-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 18F-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.

2011-11-01

313

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  

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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.

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

314

Ethmomaxillary sinus: a particular anatomic variation of the paranasal sinuses  

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We assessed the morphological and radiological characteristics of ethmomaxillary sinus (EMS), which is an enlarged posterior ethmoidal air cell occupying the superior portion of the maxillary sinus while draining into superior meatus. This study is based on 1450 patients submitted to CT examination of the paranasal sinuses between 1998 and 2002. Sequential CT scans were obtained in the coronal plane in all the patients with 2.5- to 5-mm section thickness and were evaluated for EMS. The diagnosis of EMS was made when there was a posterior ethmoidal cell occupying the superior part of the maxillary sinus while draining to the superior meatus. When EMS was diagnosed, the morphology of the septum between the and maxillary sinus, and width of the superior meatus, were noted. The EMS was found in 10 of 1450 (0.7%) patients. The coexisting anatomic variations were concha bullosa (50%), upper concha pneumatization (20%), maxillary sinus hypoplasia (20%), uncinate bulla (10%), hypertrophied inferior concha (10%), paradoxic middle concha (10%), and septate maxillary sinus (10%). There was no relation between EMS and sinus disease. The EMS is a rare anatomic variation and does not appear to be associated with sinusitis. The EMS is not a well-studied anatomic variation, and the literature is lacking adequate information about this anatomic variation. This study performed in a large series of patients will possibly contribute to better understanding of this particular anomaly. (orig.)

Sirikci, Akif; Bayram, Metin [Department of Radiology, Faculty of Medicine, Gaziantep University, Kolejtepe, 27310, Gaziantep (Turkey); Bayazit, Y.A.; Kanlikama, Muzaffer [Department of Otorhinolaryngology and Head and Neck Surgery, Faculty of Medicine, Gaziantep University, Kolejtepe, 27310, Gaziantep (Turkey)

2004-02-01

315

Presencia de Quistes de Retención Mucoso del Seno Maxilar Detectados por Radiografías Panorámicas en Pacientes de la Ciudad de Temuco, Chile / Presence of Mucus Retention Cysts in Maxillary Sinus Detected by Panoramic Radiographs on Patients of Temuco, Chile  

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Full Text Available SciELO Chile | Language: Spanish Abstract in spanish Los quistes de retención mucoso son una patología muy poco frecuente en el seno maxilar, perode fácil detección en radiografías panorámicas. El propósito de este estudio fue cuantificar los casos de mucoceles en senos maxilares durante un periodo de 5 meses, observando su frecuencia por edad y sexo. [...] Se encontró una prevalencia de 2.06% en 339 radiografías revisadas, observándose mayor frecuencia en el género masculino y a una edad promedio de 30 años. Todos los casos no manifestaron sintomatología alguna. Abstract in english Mucus retention cyst are a pathology with very low frequency in maxillary sinus, but easy to detect in panoramic radiographs. The aim of this study was quantify mucocele cases in maxillary sinus along five months, detecting their frequency by age and sex. It was found a prevalence of 2.06%, noting m [...] ore frequently in male sex and with an average age of 30. All cases were presented without previous symptomatology.

Ramón, Fuentes Fernández; Ivonne, Garay Carrasco; Eduardo, Borie Echevarría.

316

Tercer molar ectópico a nivel de región infraorbitaria-seno maxilar / Ectopic third molar of the maxillary sinus-infraorbital region  

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Full Text Available SciELO Spain | Language: Spanish Abstract in spanish Introducción. Los cordales ectópicos son aquellos incluidos en posiciones inusuales o desplazados a distancia de su normal localización anatómica. La erupción ectópica de un diente dentro de la cavidad oral es común pero en otros lugares es raro. La erupción ectópica puede ir asociada con alteracion [...] es en el desarrollo, procesos patológicos o yatrogenia. Caso Clínico. Mujer de 56 años de edad con tercer molar superior derecho ectópico a nivel de región infraorbitaria-seno maxilar. Presentaba dolor e inflamación hemifacial derecha de larga evolución y resistente a tratamiento médico. Se realizó exéresis quirúrgica de dicho cordal mediante abordaje de Caldwell-Luc. Discusión. En muchos casos la etiología de un cordal ectópico no puede ser identificada. La mayor parte de las veces son asintomáticos y diagnosticados mediante estudios radiológicos. Conclusión. La indicación de la exodoncia en el caso de un diente ectópico en general viene determinada por la presencia de sintomatología o en prevención de futuras complicaciones. Abstract in english Introduction. Ectopic third molar teeth are those that are impacted in unusual positions, or that have been displaced and are at a distance from their normal anatomic location. Ectopic eruption of a tooth within the oral cavity is common, but rare in other sites. Ectopic eruption can be associated w [...] ith developmental disturbances, pathologic processes or iatrogenic activity. Case Report. Female, fifty-six years old, with an upper right ectopic third molar located in the maxillary sinus-infraorbital region. She presented with pain and inflammation of the right side of her face that she had been experiencing for along time and which had been resistant to treatment. Surgical excision was carried out of the third molar tooth using the Caldwell-Luc approach. Discussion. In many cases the etiology of ectopic third molars cannot be identified. Generally they are asymptomatic and diagnosed by radiology studies. Conclusion. The indication for extraction in ectopic teeth cases is in general determined by the presence of symptomatology, or by the need for preventing future complications.

Moreno García, C.; Collado López, J.; Monje Gil, F.; Serrano Gil, H.; Morillo Sánchez, A.J.; Mateo Arias, J.; Moreno Vázquez, J.C.; Ruiz Laza, L.; Nadal Cristóbal, B.; Quirós Álvarez, P..

317

Schizophyllum Commune a Causative Agent of Fungal Sinusitis: A Case Report  

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We present a case of maxillary sinusitis caused by Schizophyllum commune, in a 50-year-old female. The patient presented with nasal obstruction, purulent nasal discharge from right side of the nose, cough, headache, and sneezing. Computed tomography revealed extensive opacity of the right maxillary sinus as well as erosion of the nasal wall and maxillary bone. Functional endoscopic sinus surgery was done, and fungal debris present on right side of the maxillary sinus was removed and sent to l...

Premamalini, T.; Ambujavalli, B. T.; Anitha, S.; Somu, L.; Kindo, Anupma J.

2011-01-01

318

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  

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Full Text Available SciELO Brazil | Language: Portuguese Abstract in portuguese 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

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

319

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)

2006-05-01

320

Maxillary ameloblastoma: Report of three cases  

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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...

Sapundžiev Petar; Ilieva Neli

2005-01-01

 
 
 
 
321

Maxillary Tuberosity Reconstruction with Transport Distraction Osteogenesis  

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Severe bone loss due to pathology in the maxillary tuberosity region is a challenging problem both surgically and prosthetically. Large bone grafts have a poor survival rate due to the delicate bony architecture in this area and presence of the maxillary sinus. Our case presentation describes a new technique for reconstructing severe bony defect in the maxillary tuberosity with horizontal distraction osteogenesis in a 45-year-old man. A 4 × 6 × 3?cm cyst was discovered in the left maxilla...

Ugurlu, F.; Basel, B.; Sener, B. Cem; Sertgo?z, A.

2012-01-01

322

Preoperative concurrent CBDCA chemotherapy and accelerated hyperfractionated radiotherapy for squamous cell carcinoma of the maxillary region  

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Between 1994 and 2000, 28 patients with T3/T4 squamus cell carcinoma of the maxillary region (maxillary sinus, 22; maxillary gingiva, 4; maxillary bone, 1; buccal mucosa, 1) had accelerated hyperfractionated radiotherapy combined with simultaneous CBDCA chemotherapy preoperatively, at Chiba Cancer Center Hospital. The protocol consisted of combined therapy with accelerated hyperfractionated irradiation of 1.6 Gy, twice a day, to a total dose of 32.0-51.2 Gy and concurrent intra-arterial or intravenous infusion of CBDCA 20-30 mg/body/day for a cumulative total dose of 270-480 mg. After completion of the preoperative combined therapy, the clinical CR rate was 17.9%, and the good PR{center_dot}CR rate was 32.1%. According to the initial findings and response to the combined therapy, all patients had maxillectomy (subtotal, 3; total, 16; extended, 9) 4 weeks after completion of the preoperative combined therapy. Postoperatively, the complete pathologic response (Ohboshi and Shimozato's classification, grade III and IV) rate was 28.6%. And the actuarial local control rate was 85.7%, with a mean follow-up of 46.2 months. Based on these results, we believe this preoperative therapy with CBDCA chemotherapy and accelerated hyperfractionated radiation is a significant choice as treatment for squamous cell cancer of the maxillary region. (author)

Omura, Ken; Harada, Hiroyuki [Tokyo Medical and Dental Univ. (Japan). Graduate School; Suzuki, Haruhiko; Takeuchi, Yosuke; Hatano, Kazuo; Togawa, Takashi

2001-11-01

323

Preoperative concurrent CBDCA chemotherapy and accelerated hyperfractionated radiotherapy for squamous cell carcinoma of the maxillary region  

International Nuclear Information System (INIS)

Between 1994 and 2000, 28 patients with T3/T4 squamus cell carcinoma of the maxillary region (maxillary sinus, 22; maxillary gingiva, 4; maxillary bone, 1; buccal mucosa, 1) had accelerated hyperfractionated radiotherapy combined with simultaneous CBDCA chemotherapy preoperatively, at Chiba Cancer Center Hospital. The protocol consisted of combined therapy with accelerated hyperfractionated irradiation of 1.6 Gy, twice a day, to a total dose of 32.0-51.2 Gy and concurrent intra-arterial or intravenous infusion of CBDCA 20-30 mg/body/day for a cumulative total dose of 270-480 mg. After completion of the preoperative combined therapy, the clinical CR rate was 17.9%, and the good PR·CR rate was 32.1%. According to the initial findings and response to the combined therapy, all patients had maxillectomy (subtotal, 3; total, 16; extended, 9) 4 weeks after completion of the preoperative combined therapy. Postoperatively, the complete pathologic response (Ohboshi and Shimozato's classification, grade III and IV) rate was 28.6%. And the actuarial local control rate was 85.7%, with a mean follow-up of 46.2 months. Based on these results, we believe this preoperative therapy with CBDCA chemotherapy and accelerated hyperfractionated radiation is a significant choice as treatment for squamous cell cancer of the maxillary region. (author)

2001-11-01

324

Paranasal sinus obliteration in Wegener granulomatosis  

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The authors report 14 cases of Wegener granulomatosis in which one or more paranasal sinuses were obliterated by bone. The maxillary antra were involved in all cases, with the other sinuses being affected less frequently. These changes are thought to result from chronic bacterial sinusitis superimposed on the granulomatous vasculitic process. Computed tomography dramatically demonstrated the bone changes, consisting of a combination of sinus wall thickening and trabeculated new bone formation within the sinuses.

Paling, M.R.; Roberts, R.L.; Fauci, A.S.

1982-08-01

325

A Case of Paranasal Sinus Papilloma with Increased FDG Uptake  

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The false-positive FDG uptakes on head and neck areas are common due to benign lesion, iatrogenic and physiologic changes. The Schneiderian papilloma is uncommon benign tumor arising from the mucosa of the paranasal sinuses and nasal cavity. The findings of paranasal papilloma on conventional modality such as CT and MRI are non-specific and they could be confused with inflammatory polyp or retention cyst. Despite of benign tumor, the papilloma usually shows locally aggressive growth with malignant potential, therefore the FDG can be actively accumulated in this lesion. We describe the case of 18F-FDG PET/CT finding in a 77-year-old woman who demonstrates oncocytic papilloma in maxillary sinus.

An, Young Sil; Park, Yong Koo; Kim, Deog Yoon [Kyung Hee University School of Medicine, Seoul (Korea, Republic of)

2008-10-15

326

Silent sinus syndrome.  

Science.gov (United States)

We present a case of silent sinus syndrome (SSS) who underwent unilateral surgical endoscopic maxillary meatotomy. Orbital floor reconstruction is delayed after follow up. Enophthalmos recovered 8 months after the surgery and radiologic findings improved. SSS is a clinical entity that should be kept in mind in the differential diagnosis of enophthalmos and can be treated successfully via endoscopic approach. PMID:19845229

Miman, M C; Akarcay, M; Doganay, S; Erdem, T; Firat, Y

2009-01-01

327

[Subantral graft: clinical application of the biological principles osseoinduction in the treatment of posterior maxillary atrophy].  

Science.gov (United States)

Severe resorption in the posterior maxilla following the loss of natural teeth is frequently associated with severe pneumatization of the maxillary sinus. This condition reduces the possibility of using implants in the subantral maxilla to surgical and prosthetic limits that cannot be resolved by simple techniques. For these cases, maxillary sinus elevation surgery and subantral grafting are required in order to increase this segment of the maxilla. The availability of new biomaterials has increased the possibilities of performing these techniques by reducing the amount of autogenous bone that must be harvested. Osteogenesis, osteoinduction, osteoconduction, osteotrophism, and osteophilia are the biologic mechanisms involved in the formation of new bone. Presence of these mechanisms permit augmentation of the subantral osseous band and bone to dimensions needed for implant placement. Conductive biomaterials permit bone neoformation to begin at the margins of the defect and advance towards the center. In a clinical study of 42 months, 228 implants (Steri-Oss, Yorba Linda, CA were placed; 180 of them are loaded and functional. The threaded design, HA-coating, hex lock head, and a resorbable membrane promote osseointegration and longevity. A subantral graft was placed in the space created after release and elevation of the sinus mucosa. The histologic evidence and the supportive clinical and radiologic findings clearly demonstrate consolidation and integration of the graft and the implant. PMID:9117855

Lamberti, V S

1994-01-01

328

Transantral, subperiosteal resection of the palatal root of maxillary molars.  

Science.gov (United States)

A resection method for the palatal root of the maxillary molar is presented, in which the tip of the root is exposed by widening the resection opening of the buccal roots into the maxillary sinus and by lifting the periosteum from its underlying tissue above the tip of the root. The method suits cases in which the mucous membrane of the sinus is healthy and the floor of the sinus extends between the roots or the tip of the root is close to the sinus. By this method, palatal opening and damage to the mucous membrane of the sinus are avoided. Pain and discomfort are minimal. In addition, the topographic anatomy of the floor of the maxillary sinus and the dental roots and radiographic methods suitable for diagnostics are discussed. PMID:815190

Altonen, M

1975-12-01

329

Fungal Involvement in Patients with Paranasal Sinusitis  

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Fungal involvement of the paranasal sinuses is frequently observed in the immunocompromised host and it can become lifethreatening if it is not diagnosed. Definitive diagnosis is made by tissue biopsy and culture. In this study biopsy materials of maxillary, ethmoidal and frontal sinuses of 60 patients with clinical manifestation of sinusitis and no response to medical therapy were assessed by mycological and pathological methods for the presence of fungi. Invasive fungal sinusitis was diagno...

Kordbacheh, P.; Zaini, F.; Emami, M.; Borghei, H.; Khaghanian, M.; Safara, M.

2004-01-01

330

CT image of unilateral paranasal sinus disease  

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Of 27 patients with unilateral paranasal sinus disease detected by CT scans, 15 had tumors and 12 had inflammatory disease or cysts. Most of those with malignant tumors had CT evidence of bone destruction. Maxillary sinus wall thickening was usually found in patients with inflammatory disease or cysts. However, two patients with malignant tumors showed only bone thickening. Therefore, pathological examination by biopsy or exploratory opening of the sinus should be performed when unilateral paranasal sinus disease is found. (author).

Nishida, Yoshinao; Naito, Yasushi; Honjo, Iwao (Kyoto Univ. (Japan). Faculty of Medicine)

1990-05-01

331

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)

Full Text Available SciELO Brazil | Language: Portuguese Abstract in portuguese 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.

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

332

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)

Full Text Available SciELO Brazil | Language: Portuguese Abstract in portuguese 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.

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

333

Computed tomography of maxillary cancer  

International Nuclear Information System (INIS)

Twenty three patients of maxillary cancer were examined by computed tomography and conventional frontal tomography, and their diagnostic accuracy was investigated. Accuracy of computed tomography for detection of bone destruction is almost equal to that of tomography, through superior to tomography in recognition of tumor extent, at both pterygopalatine fossa and infratemporal fossa. We must be careful in evaluation of invasion to the ethmoid sinus, because of many false positives. The computed tomographic images are useful for management of maxillary cancer, not only in treatment planning but also in follow up examination after combination therapy. (author)

1983-01-01

334

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)

1996-03-01

335

Coronal CT scan of paranasal sinuses  

International Nuclear Information System (INIS)

The clinical features were correlated with the coronal CT scan appearance of the paranasal sinuses of 49 patients who had received the Caldwell-Luc operation 16 to 58 years ago. The clinical diagnosis at the time of the CT scan was postoperative maxillary cyst in 22 patients, chronic sinusitis in 21 patients, trigeminal neuralgia in 3 patients, radicular cyst, postoperative ethmoid cyst and inverted papilloma in one patient each. The CT scans of the 91 operated maxillary sinuses showed obliterated cavity in 21 cases, small cavity in 46 cases, and cystic formation in 24 cases. The authors speculated that some maxillary sinuses which appeared in CT scans as small cavities might cause the clinical symptoms of postoperative maxillary cyst in the future. (author)

1994-03-01

336

Normal development of paranasal sinuses in children: A CT study  

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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(mm{sup 2}) 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.

Kim, Hyung Jin; Park, Eui Dong; Choi, Pil Youb; Kim, Jae Hyoung; Chung, Sung Hoon [Gyeongsang National University College of Medicine, Chinju (Korea, Republic of); Chung, Hae Gyeong [Masan Sungmo Hospital, Masan (Korea, Republic of)

1993-11-15

337

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

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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.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.

Maria Carolina Gonçalves Carnasciali

2012-08-01

338

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)

Full Text Available SciELO Brazil | Language: Portuguese Abstract in portuguese 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.

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

339

The role of functional sinus surgery for treatment of antrochoanal polyp  

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Full Text Available Antrochoanal polyp (ACP is a benign lesion which arises from the mucosa of maxillary sinus, fills it and expands through natural ostium towards choana protruding in the epipharynx. Objective: to present our experience in endoscopic surgery of ACP. Material and methods: prospective study included 24 patients operated at the Institute of Otorinolaryngology and Maxillofacial surgery, Clinical Center of Serbia, Belgrade, in the period 2002- 2004. Subjective symptoms, endoscopic and CT findings were evaluated postoperatively, following up the patients in the period 12-20 months. Subjective difficulties of patients were tested by 100mm-analogue scale, while endoscopic and CT findings were demonstrated by three-stage scale from 0 to 2. Applying the technique of ACP extraction in Trendelenburg’s position and approaching the part which protrudes in the epipharynx, we successfully removed the endonasal part by means of curved forceps for epipharyngeal biopsy. By endoscopic middle meatotomy, the natural ostium of maxillary sinus was expanded and pathological process from the very sinus was successfully removed. Results: only one female patient had the majority of symptoms after the operation, while all others had no complaints. Endoscopic and CT findings were normal in all patients at the latest control, without any signs of ACP recurrence. There were no intraoperative or postoperative complications. Conclusion: minimal damage to sinus mucosa due to forceps is lesser problem than complications developed upon creating even the miniature opening in the canine fossa. Using this technique, a dexterous surgeon may successfully extract pathological process with minimal incidence of recurrence, and, more important, with no complications and maximally fast recovery of patients. .

Vuji?i? Z.

2007-01-01

340

Aneurysmal bone cyst of paranasal sinuses  

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Aneurysmal hone cyst is rare in paranasal sinuses. It may be uni or multilocutar It occurs alone or with other benign bone lesions. The exact pathogenesis of it is still unknown. The aggressiveness of the disease needs early diagnosis and proper management to prevent recurrence. This report describes a case of aneurysmal bone cyst involving the ethmoid and maxillary sinuses which was successfully managed.

2002-01-01

 
 
 
 
341

Sinus Surgery  

Medline Plus

Full Text Available ... the sinuses, antibiotics are given to kill the germs and control the infection. Sinusitis caused by infection ... sinusitis causes mucus to pool in the sinuses. Germs can then grow in this mucus, resulting in ...

342

Sinus Surgery  

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Full Text Available ... growing in the sinuses, antibiotics are given to kill the germs and control the infection. Sinusitis caused ... sinuses bigger, creating less possibility of obstruction. Other times, new openings are created in the sinuses to ...

343

Osteotomy in direct sinus lift. A comparative study of the rotary technique and ultrasound  

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Purpose: The present study investigates sinus membrane rupture in direct maxillary sinus lift with the rotary technique and with ultrasound, examining the survival of implants placed after sinus augmentation, and analyzing the bone gain obtained after the operation and 12 months after placement of the prosthetic restoration. Material and Methods: A retrospective study was made of 45 patients requiring maxillary sinus lift or augmentation for implant-prosthetic rehabilitation. Use was made ...

Pen?arrocha-diago, Mari?a; Pen?arrocha-diago, Miguel; Sanchez-recio, Cristina; Pen?arrocha-oltra, David; Romero-milla?n, Javier

2012-01-01

344

Comparative study of two autogenous graft techniques using piezosurgery for sinus lifting Estudo comparativo de duas técnicas de enxerto autógeno utilizando piezocirurgia para levantamento de seio maxilar  

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PURPOSE: Maxillary sinus lifting is a technique, in which, a possible complication is sinus membrane perforation. The aim of this study was to compare two techniques using ultrasound surgery to perform autogenous graft for maxillary sinus lifting. METHODS: Ten rabbits were used in the study, one of them did not undergo surgery. The other nine rabbits had their maxillary sinuses filled with autogenous bone grafts collected from the external skull diploe in particulate form on the right side, a...

2010-01-01

345

Accidental displacement of impacted maxillary third molar: a case report  

Scientific Electronic Library Online (English)

Full Text Available SciELO Brazil | Language: English Abstract in portuguese Este artigo descreve um caso raro de um terceiro molar superior direito impactado que foi deslocado acidentalmente para o interior do seio maxilar durante exodontia e foi removido cirurgicamente após quase dois anos. O dente foi removido sob anestesia geral, após exposição do seio maxilar pela técni [...] ca de Caldwell-Luc. O pós-operatório transcorreu sem complicações. Seis meses após a cirurgia, houve completa recuperação do seio maxilar e a paciente não apresentou qualquer queixa. Abstract in english An unusual case of an impacted right maxillary third molar that was accidentally displaced into the maxillary sinus during exodontia and was surgically retrieved almost 2 years later is described. The tooth was removed under general anesthesia, after maxillary sinus exposure through Caldwell-Luc app [...] roach. Postoperative recovery was uneventful. Six months after the retrieval surgery, the maxillary sinus was completely healed and the patient did not present any complaint.

Sverzut, Cassio Edvard; Trivellato, Alexandre Elias; Lopes, Luiz Marcel de Figueiredo; Ferraz, Emanuela Prado; Sverzut, Alexander Tadeu.

346

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  

Scientific Electronic Library Online (English)

Full Text Available SciELO Spain | Language: Spanish Abstract in spanish 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 superi [...] or 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. Abstract in english 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.

Antunes Freitas, D.; Vergara Hernández, C.I.; Díaz Caballero, A.; Comino Mol, V..

347

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  

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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.

D. Antunes Freitas

2011-12-01

348

The Importance of Paranasal Sinuses Computed Tomography Scan (CT scan) in Sinusitis  

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"nThe inflammatory changes of paranasal sinus (PNS) mucosa or sinusitis are among the most common inflammatory diseases of the human body. Diagnosis of sinusitis is based on clinical findings. Sinusitis could be clinically presented as acute and chronic entities which these can only be differentiated from each other on the basis of the duration of the patient’s symptoms and signs, and the imaging cannot be useful for this differentiation. "n The major role of imaging for ...

Shervin Sharif Kashany

2009-01-01

349

Radiotherapy of maxillary antrum carcinoma  

International Nuclear Information System (INIS)

Thirty-five patients with maxillary antrum carcinoma were treated at National Medical Center Hospital in Tokyo from January 1974 to April 1984. In this paper, we analyzed the 22 patients of primary cases out of these 35 cases. For all these 22 cases, we had performed radiotherapy of external beam irradiation (pre and post-irradiation) with antrotomy followed by complete necrotomy. The 22 patients received radiotherapy with a dosage ranging from 50 -- 70 Gy. The cumulative five-year survival rate was 52.5 %, while the five-year survival was 75.0 % for the 15 patients with T3N0M0. As for the survival rate, there was no significant difference in the groups with or without chemotherapy. The prognosis of the maxillary sinus carcinoma was much poorer in patients with regional neck metastases than without metastases. (author)

1986-01-01

350

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)

Full Text Available SciELO Mexico | Language: Spanish Abstract in spanish 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.

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

351

Paranasal sinus masses of Rocky Mountain bighorn sheep (Ovis canadensis canadensis).  

Science.gov (United States)

This article describes 10 cases of paranasal sinus masses in Rocky Mountain bighorn sheep (Ovis canadensis canadensis). Among 21 bighorns that were examined from 11 herds in Colorado, 10 individuals (48%) from 4 herds (36%) had masses arising from the paranasal sinuses. Affected animals included 9 of 17 females (53%) and 1 of 4 males (25%), ranging in age from approximately 2 years to greater than 10 years. Defining gross features of these masses included unilateral or bilateral diffuse thickening of the respiratory lining of the maxillary and/or frontal sinuses, with abundant seromucinous exudate in the affected sinus cavities. Defining histologic features of these masses included chronic inflammation and proliferation of mesenchymal and epithelial cells of the mucosa and submucosa. Epithelial changes included hyperplasia of mucosal epithelium, hyperplasia of submucosal glands and ducts, and neoplasia (adenocarcinoma). Mesenchymal changes included submucosal myxedema, submucosal fibroplasia/fibrosis, bone destruction, and neoplasia (myxomatous fibroma). Specific immunohistochemistry and polymerase chain reaction for Jaagsiekte sheep retrovirus and enzootic nasal tumor virus were performed with negative results. PMID:20926735

Fox, K A; Wootton, S K; Quackenbush, S L; Wolfe, L L; Levan, I K; Miller, M W; Spraker, T R

2011-05-01

352

Sinus Surgery  

Medline Plus

Full Text Available ... sinus openings could become blocked. Diagnosis The doctor determines if the patient has sinusitis after a thorough ... nose, and throat. The physician will try to determine if the sinusitis is caused by allergies, infections, ...

353

Sinus Surgery  

Medline Plus

Full Text Available ... cilia. All sinuses are connected to the nasal cavity through small tube-like openings. The opening where the sinuses join together in the nasal cavity is called the ‘middle meatus.’ Healthy sinuses are ...

354

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

Energy Technology Data Exchange (ETDEWEB)

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).

Ikeda, Motohisa [Soka Municipal Hospital, Saitama (Japan); Watanabe, Isamu

1996-03-01

355

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.

2008-12-01

356

Prevalence of incidental paranasal sinus opacification in dental paediatric patients  

Energy Technology Data Exchange (ETDEWEB)

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.

Cho, Bong Hae; Jung, Yun Hoa; Nah, Kyung Soo [Department of Oral and Maxillofacial Radiology, College of Dentistry, Pusan National University, Pusan (Korea, Republic of)

2008-12-15

357

Granulomatous osteomyelitis of the maxillary sinus.  

Science.gov (United States)

A case of granulomatous osteomyelitis of the maxilla, probably due to tuberculosis is reported, and the literature reviewed. Excision of the diseased tissue with antitubercular treatment forms the most effective line of treatment. PMID:458920