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Pathological changes in the maxillary sinus mucosae of patients with recurrent odontogenic maxillary sinusitis  

Science.gov (United States)

Objective: To study the structural and functional changes of maxillary sinus mucosae of patients with odontogenic maxillary sinusitis, and to improve the therapeutic effects. Methods: Ten mucosal biopsy samples collected during the surgeries of patients with recurrent odontogenic maxillary sinusitis were selected as Group A. Another ten mucosal biopsy sample were collected during retention cyst-removing surgeries and referred to as Group B. The mucosae were put in 10% neutral formalin solution for 1 day and prepared into 5-7 µm thick paraffin sections which were subjected to hematoxylin-eosin staining. The reactions included: (1) Reaction with T-lymphocyte (CD-3); (2) reaction with T-helper cell (CD-4); (3) reaction with T-suppressing cell (CD-8); (4) reaction with B-lymphocyte (CD-20). Polymeric horseradish peroxidase visualized detection system was used. The contents of CD3, CD4, CD8 and CD20 in the stained cells of the maxillary sinus mucosal layer were calculated. The responses of receptors to muramidase were classified as mild, moderate and strong. All data were analyzed by Statistica 6.0 package for Windows based on Mann-Whitney non-parametric standards. Results: The epithelial tissues in the maxillary sinus mucosa of Group B were covered with multiple rows of cilia. The epithelial cells of Group A suffered from degeneration, shrinkage and desquamation. Different cells were distributed in the autologous mucosal layer, of which macrophages, fibroblasts, lymphocytes and neutrophils were dominant. The average contents of macrophages and lymphocytes accounted for 42.8%. Lymphocyte subset analysis showed that the number of CD3 cells exceeded that of CD20 ones and there were more CD4+ cells than CD8+ ones. T-helper and T-suppressing cells were distributed remarkably differently. CD8+ cells were mainly located inside and under the epithelium, while CD4+ cells were scattered in the autologous matrix. Conclusion: For patients with recurrent odontogenic maxillary sinusitis, the maxillary sinus mucosa mainly suffered from regeneration of epithelial tissues and inhibition of cell proliferation, which were accompanied by damages to the protective and shielding effects of the mucociliary transport system. Macrophages and lymphocytes dominated in the infiltration of autologous mucosal layer, and the coexisting copious fibroblasts indicated the onset of inflammation. PMID:25225509

Feng, Lin; Li, Hua; E, Ling-Ling; Li, Chuan-Jie; Ding, Yan

2014-01-01

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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  

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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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Mucociliary function during maxillary sinus floor elevation.  

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Maxillary sinus floor elevation carries the potential risk of compromising the sinus physiology. The aim of this study was to prospectively assess mucociliary function during maxillary sinus augmentation in patients without preoperative signs of maxillary sinusitis. Ten patients underwent unilateral sinus floor elevation under local anesthesia and endoscopic control. Methylene blue was dropped on the floor of the maxillary sinus to evaluate mucociliary function until the ostium region during sinus augmentation. The drainage of methylene blue was noticed in the lateral, medial, posterior, and anterior walls and in the roof of the sinus. As for the sinus floor, only the detached part of mucosa in correspondence of the eroded bony window presented not drained methylene blue, showing an absence of mucociliary function. Mucociliary function is preserved even during the surgical procedure except for the detached area of the schneiderian membrane. PMID:20818241

Griffa, Alessandro; Berrone, Mattia; Boffano, Paolo; Viterbo, Stefano; Berrone, Sid

2010-09-01

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Maxillary sinusitis caused by Pleurophomopsis lignicola.  

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An immunocompetent 59-year-old man developed sinusitis over a 6- to 8-month period after cutting down a rotted maple tree (Acer sp.). A polypoid obstruction with a bloody drainage was evident in his right nasal cavity. A computed tomographic scan showed an opacification of the maxillary sinus. Surgery was performed to remove a fungus ball that had extended into the patient's medial sinus cavity. Sections of the sinonasal mucosa revealed marked acute and chronic sinusitis with inflammation, co...

Padhye, A. A.; Gutekunst, R. W.; Smith, D. J.; Punithalingam, E.

1997-01-01

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[Right maxillary sinus epidermoid cyst huge: report of 1 case].  

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Dermoid cysts occur in the maxillary sinus mucosa were rare. Patient's CT showed: maxillary sinuses Sinus cavity expansion, sinus wall thinning. The inside of the sinus wall disappeared, the maxillary sinus filled with soft tissue mass shadow. Bacterial culture: Staphylococcus aureus. Pathological report: a very small a mount of scattered broken squamous epithelium and keratosis, no atypia cells. Lesions consistent with epidermoid cyst. Patients with epidermoid cysts, formated probably in the process of embryonic development, the reasons of rapid growth may be considered for inflammatory stimulation. PMID:25322619

Ren, Dapeng; Pan, Hongfei; Zheng, Xiaochun

2014-08-01

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Large pneumocele of the right maxillary sinus  

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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 paran...

Mena-domi?nguez Ea, Torres-morientes Lm

2013-01-01

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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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Balloon -catheter usage in maxillary sinus surgery: Case report  

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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-cathet...

Brkovi? Božidar; Radulovi? Milan

2006-01-01

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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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Mucocoele of the maxillary sinus  

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Background. Mucocoele is histopathologically benign, cystic change of paranasal sinuses filled with mucoid contents, which with its growth is pressuring and destroying local bone walls. In only 3% of the cases it can be localized in maxillary sinuses. Etiology is unknown. Pyocoele develops by secondary infection. Case report. The male patient was 21 years old. His symptoms were runny nose with thick contents and heavy breathing on the right side of the nose, headaches, as well as the swelling...

Peri? Aleksandar; Baleti? Nenad; Vukomanovi?-?ur?evi? Biserka; Jovi? Milena; Kozomara Ružica

2007-01-01

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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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Maxillary sinusitis with pulmonary tuberculosis.  

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Tubercular infection of the nasal cavity is an infrequently encountered condition. More so, after the discovery of relevant antibiotics, nasal sinus tuberculosis is not commonly seen. Few cases have reported tuberculosis of the paranasal sinuses, nasopharynx and larynx. With the increasing incidence of HIV, these rare forms of infection have started re-emerging. We present a case of a middle aged man presenting with nasal cavity lesion along with pulmonary tuberculosis, which came to light only after the diagnosis of maxillary sinus tuberculosis. PMID:25085948

Upadhyay, Rashmi; Prakash, Ved; Singh, Abhishek Bahadur; Saheer, S

2014-01-01

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Mucocoele of the maxillary sinus  

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Full Text Available Background. Mucocoele is histopathologically benign, cystic change of paranasal sinuses filled with mucoid contents, which with its growth is pressuring and destroying local bone walls. In only 3% of the cases it can be localized in maxillary sinuses. Etiology is unknown. Pyocoele develops by secondary infection. Case report. The male patient was 21 years old. His symptoms were runny nose with thick contents and heavy breathing on the right side of the nose, headaches, as well as the swelling of the right cheek. During clinical examination, the expansive change was found. It was completely closing the right side of the nose cavity. Computerized tomography (CT of paranasal cavities showed excessive expansion of the right maxillary sinus, with very thinned walls, while the cavity was filled with liquid. After antibiotics therapy, the radical operation of the right maxillary sinus was performed, based on Caldwell Luc method. The frontal wall was found to be extremely convex and thinned, while the medial wall was with dehiscention. The cystic change was extirpated. Mucocoele was proved by pathohistologic findings. Its wall was about 2 mm thick and it showed squamous metaplasia in the large part of the mucocoela epithel. In the submucosa fibrosis and inflammatory infiltrate was present. Postoperative follow-up was under control. Clinically and radiographycaly, six months after therapy, the patient does not have troubles. Conclusion. The rare localization of the mucocoeles in maxillary sinus can be explained with the width of the maxillary ostia. Infected mucocoeles, expanded to the local anatomical structures, should be operated on with classic radical surgical operation. .

Peri? Aleksandar

2007-01-01

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[Odontogenic maxillary sinusitis caused by dental restoration].  

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We report herein on 5 patients with odontogenic maxillary sinusitis caused by a dental restoration (caries cutting, cavity preparation, inlay restoration). Odontogenic maxillary sinusitis was noted following dental restoration. Even though the pulp cavity and dental pulp were intact, the odontogenic maxillary sinusitis occurred caused by an apical lesion. Infection by way of the dentinal tubules was suggested to be a cause of the pathophysiology. Endoscopic sinus surgery was indicated in patients with intractable odontogenic maxillary sinusitis caused by the dental restoration. Cone-beam x-ray CT was useful for the accurate diagnosis of odontogenic maxillary sinusitis caused by a dental restoration. Physicians should thus be aware of the possibility that a tooth, which has undergone dental restoration, may cause odontogenic maxillary sinusitis. PMID:25102739

Sato, Kiminori

2014-06-01

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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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Sinusitis of the maxillary antrum.  

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Twenty-four adults with clinical evidence of sinusitis were studied by 65 needle punctures of the maxillary antrum. Fourteen of 15 sinuses with normal transillumination and 19 of 26 that were dull had normal aspirates, whereas 24 of 24 that were opaque had abnormal aspirates (P less than 0.001). Marked mucosal thickening as determined radiologically (Water's view) was associated with abnormal aspirates whereas lesser mucosal thickening was not (P less than 0.001). In acute sinusitis, there was a strong correlation between high aspirate leukocyte counts (greater than 1000 per cubic millimeter) and infection as manifested by bacterial titers of greater than 10(5) per milliliter or the isolation of virus fungus (P greater than 0.001). Anterior-nasal-swab cultures correlated poorly with direct aspirate culters. Organisms frequently recovered from the sinus included Haemophilus influenzae, Strepto coccus pneumoniae, and anaerobic bacteria. Rhinovirus was recovered twice. Antibiotics were usedful in patients with acute sinusitis if the organism was sensitive in vitro (P less than 0.001). PMID:169466

Evans, F O; Sydnor, J B; Moore, W E; Moore, G R; Manwaring, J L; Brill, A H; Jackson, R T; Hanna, S; Skaar, J S; Holdeman, L V; Fitz-Hugh, S; Sande, M A; Gwaltney, J M

1975-10-01

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Fibrous dysplasia of maxillary sinus  

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

Tinoco, Paulo

2009-06-01

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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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The maxillary recess of the sphenoid sinus.  

Science.gov (United States)

The most studied recess of the sphenoid sinus seems to be the lateral one, which is highly variable. Less attention seems to be paid to the maxillary recess, extending anterior, inferior and lateral towards the maxillary sinus. Twenty patients were referred for CT of the paranasal sinuses (axial CT), during a 3-month period. After examining the morphology of the sphenoid sinuses, the authors found bilateral maxillary recesses in one patient. On either side, the maxillary recess of the sphenoid sinus was directed anterior and lateral, being separated from the maxillary sinus by a distinctive bony wall; the longitudinal size of these recesses was 1.36 cm, on the left, and 1.22 cm, on the right. As it becomes part of the antero-medial wall of the pterygopalatine fossa, the maxillary recess of the sphenoid sinus should be evaluated prior to the endoscopic endonasal approach of the fossa; the detail becomes more relevant when one takes into account the fact that in our case, on the right side, the CT-scan suggested that the sphenopalatine artery could traverse directly through the maxillary recess. Therefore, such a maxillary recess of the sphenoid sinus seems to be anatomically located in the situs of the orbital process of the palatine bone and thus, it assumes the respective topography. The differential diagnosis with a Haller cell is relevant--the surgical procedures that approach a Haller cell could lead to a misdiagnosed maxillary recess of the sphenoid sinus into the middle nasal meatus. This aspect determined us to consider the maxillary recess of the sphenoid sinus as a false Haller cell and to claim the imperative of a CT-evaluation performed prior to interventions. PMID:19690779

Ciobanu, Iulia Camelia; Motoc, A; Jianu, Adelina Maria; Cergan, R; Banu, M A; Rusu, M C

2009-01-01

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Radiology in diagnostics of odontogenic maxillary sinusitis  

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

Chekhonatskaya ?.L

2013-09-01

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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%).

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Chronic maxillary sinusitis associated with dental impression material.  

Science.gov (United States)

A 62-year-old man was referred for routine treatment of hyperplasia of the mucosa in the anterior lower jaw. An oroantral fistula was detected in the right superior alveolar ridge. The patient had no complaints. Plain radiographs showed a radiopaque foreign body in the posterior region associated with opacification of the maxillary sinus. Computed tomography showed the same hyperdense foreign body located in the posterior lower part of the sinus and an abnormal soft tissue mass in the entire right maxillary sinus. When asked about sinusitis, the patient mentioned occasional episodes of pus taste and intermittent crises of headache lasting for one week. The patient has been edentulous for 20 years. Sinus debridement was performed and the oroantral fistula was closed. The clinical suspicion of the presence of zinc oxide-eugenol paste was confirmed by microscopical and chemical analysis. After 6 months of follow-up, the fistula continued to be closed and sinusitis did not recur. This clinical case of maxillary chronic sinusitis illustrates a different odontogenic origin. PMID:19333183

Rodrigues, Moacyr-Tadeu V; Munhoz, Etiene-de Andrade; Cardoso, Camila-Lopes; de Freitas, César-Antunes; Damante, José-Humberto

2009-04-01

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Development of maxillary sinuses in childhood  

International Nuclear Information System (INIS)

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

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A case of invasive meningioma involving the maxillary sinus.  

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Meningiomas account for nearly 15% of primary brain tumors, but extracranial meningiomas are very rare. We presented a case of invasive maxillary sinus meningioma. A 50-year-old man presented with facial tenderness and severe pain in the left cheek. He had a prior surgery for a meningioma in the left frontal lobe eight months before. Physical examination and computed tomography showed a mass in the left maxillary sinus. Histopathological result of the biopsy obtained via the Caldwell-Luc approach was invasive meningioma. The mass was removed with the sinus mucosa. The histology of the resected specimen was compatible with invasive angioblastic meningioma. Postoperative radiotherapy was administered because of residual intracranial tumor. No recurrence was detected over an 11-month follow-up period. PMID:19155678

Oztürk, Kayhan; Akbay, Ercan; Cenik, Ziya

2008-01-01

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[Ectopic molar tooth in the maxillary sinus].  

Science.gov (United States)

The development of intranasal ectopic teeth is rare. Although they are more commonly seen in the palate and maxillary sinus, they can also be found in the mandibular condyle, coronoid process, and nasal cavity. A 30-year-old male patient presented with a complaint of headache. Computed tomography of the paranasal sinuses showed a bony mass in the right maxillary sinus wall, 1 cm in size. He did not have any history of maxillofacial trauma or operation. The mass was removed via a Caldwell-Luc procedure. It looked like a tooth. Histopathologic diagnosis was made as ectopic molar tooth. The patient was asymptomatic two weeks after the operation. PMID:18187979

Altun, Hüseyin; Teker, Ay?enur Meriç; Ceran, Murat; Gedikli, Orhan

2007-01-01

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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.

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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

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Volumetric measurement of the maxillary sinus by coronal CT scan  

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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.)

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

1996-08-01

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Volumetric measurement of the maxillary sinus by coronal CT scan  

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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.)

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Infantile maxillary sinus osteomyelitis mimicking orbital cellulitis.  

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Periorbital soft tissue swelling may result due to primary orbital pathology or from adjacent facio-maxillary or sino-nasal inflammatory causes. Osteomyelitis of maxilla in the pediatric age group is a rare entity in this era of antibiotics. We present an 11-month-old female infant who was brought with peri-orbital selling and purulent nasal discharge. Computed Tomography showed erosions of the walls of maxillary sinus suggestive of osteomyelitis. Culture of sinus scraping showed Staphylococcus aureus growth and the child improved with intravenous cloxacillin therapy. This case is presented due to the rarity of its presentation in this age group and for awareness to consider this entity in children having fever and peri-orbital swelling. PMID:25191055

Krishnan, Nagarajan; Ramamoorthy, Nathan; Panchanathan, Suresh; Balasundaram, Jothiramalingam S

2014-07-01

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Aggressive fibrous dysplasia of the maxillary sinus  

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Five of 34 patients (ages 4-21 years), who were subsequently diagnosed histologically as having fibrous dysplasia of the maxillary sinus, rapidly developed soft tissue masses of the malar region over a period of less than 4 months with accompanying pain (2 patients) and nasal obstruction and exophthalmos (2 patients). Each was clinically suspected of having a sarcoma. After resection, all lesions developed regrowth. At histopathologic examination, both initial and recurrent masses proved to be typical fibrous dysplasia. (orig./UWA)

Shapeero, L.G. (Dept. of Radiology, Inst. Gustave-Roussy, Villejuif (France) Dept. of Radiology, California Univ., San Francisco, CA (United States)); Vanel, D. (Dept. of Radiology, Inst. Gustave-Roussy, Villejuif (France)); Ackerman, L.V. (Dept. of Pathology, State Univ. of New York, Stony Brook, NY (United States)); Terrier-Lacombe, M.J. (Dept. of Radiology, Inst. Gustave-Roussy, Villejuif (France)); Housin, D. (Dept. of Radiology, Inst. Gustave-Roussy, Villejuif (France)); Schwaab, G. (Dept. of Ear, Nose, and Throat, Inst. Gustave-Roussy, Villejuif (France)); Sigal, R. (Dept. of Radiology, Inst. Gustave-Roussy, Villejuif (France)); Masselot, J. (Dept. of Radiology, Inst. Gustave-Roussy, Villejuif (France))

1993-11-01

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A case of desmoplastic ameloblastoma occupying maxillary sinus  

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We report a rare case of desmoplastic ameloblastoma lesion that filled the entire maxillary sinus. The patient visited our hospital with a chief complaint of swelling around the upper left premolars. A panoramic X-ray captured an image of a mixture of ill-defined radiolucency and radiopacity from the swollen area to the maxillary sinus. Computed tomography (CT) and Magnetic resononce imaging (MRI) showed that the lesion occupied almost the entire left maxillary sinus and had entered the nasal...

Kato, Hideharu; Nomura, Jouji; Matsumura, Yoshihiro; Tagawa, Toshiro

2011-01-01

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Maxillary sinus posterior wall remodeling following surgery for silent sinus syndrome.  

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Silent SINUS SYNDROME is a clinical syndrome defined by unilateral maxillary sinus opacification with atelectasis of the uncinate process. Clinically, this disorder is characterized by enophthalmos and hypoglobus. The current case report illustrates dramatic bony remodeling of the maxillary sinus following maxillary antrostomy. Although the remodeling is noted in the posterior wall of the maxillary sinus, this demonstrates the dynamic nature of bone remodeling in silent sinus syndrome, which may obviate the need for surgical correction of enophthalmos and hypoglobus. Following maxillary antrostomy, observation with staged orbital surgery, if required, is recommended. PMID:24962949

Kram, Yoseph Aaron; Pletcher, Steven D

2014-01-01

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Radiological diagnosis of maxillary sinus aspergillosis  

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Aspergillosis of the maxillary sinuses shows an increasing incidence in even otherwise healthy patients. Next to inhalation as the mode of infection, a dental root canal filling with an orosinusal fistula can be the cause. As most infections remain initially undetected or underestimated as common sinusitis, early diagnosis must be achieved. Standard X-ray of the paranasal sinuses, conventional tomography as well as CT scans are of major importance. Centrally located hyperdense opacifications are a good criterion and can be best seen in CT. Even when the case has not progressed too much, radical surgery combined with Amphotericin B therapy is still the treatment of choice since the infection may progress rapidly. (orig.)

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[One case of primary malignant lymphoma of the maxillary sinus].  

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Malignant lymphoma of the maxillary sinus is very rare. A case of diffuse large B-cell lymphoma (DLBCL) of the left maxillary sinus is presented here. A 59-year-old man came to our hospital complaining of swelling under the left lower eyelid without any other symptoms. Imaging examination including CT and MRI detected a tumor in the left maxillary sinus. The tumor was invasive into left orbit. The biopsy revealed a diffuse large B-cell lymphoma. The tumor cells were positive to CD20, CD79a, CD45. In conclusion, a very rare case of DLBCL of the maxillary sinus was reported. PMID:24738323

Shan, Yingjun; Cui, Jiawen; Zheng, Jiong

2014-01-01

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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...

Peri? Aleksandar; Milojevi? Milanko; Ljubi?i? Aleksandar; Sotirovi? Jelena

2009-01-01

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Bisphosphonate-related osteonecrosis of the maxilla and sinusitis maxillaris.  

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Bisphosphonates (BPs) are widely used as bone-stabilizers, but side effects of BP therapy include bisphosphonate-related osteonecrosis of the jaw (BRONJ), which is resistant to therapy. The aim of this study was to evaluate the outcome of maxillary BRONJ involving sinusitis maxillaris. 21 patients presenting with maxillary BRONJ, from 2005 to 2008, were included in the study. In 18 cases BP had been administered for carcinoma and in 3 cases for osteoporosis, with an average exposure time of 47.4 months. 12 patients spontaneously developed BRONJ. The 10 patients diagnosed with stage III BRONJ presented with concomitant sinusitis maxillaris. Despite treatment, there were six recurrences of BRONJ, four of them with additional sinusitis maxillaris. Whether BRONJ occurred spontaneously or after extraction there was no difference in the outcome. Patients with advanced maxillary BRONJ often suffer from sinusitis maxillaris, both of which are frequently resistant to therapy. PMID:21163624

Maurer, P; Sandulescu, T; Kriwalsky, M S; Rashad, A; Hollstein, S; Stricker, I; Hölzle, F; Kunkel, M

2011-03-01

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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. (orig.)

 
 
 
 
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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.

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

2009-09-15

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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.

43

Infraorbital hypesthesia after maxillary sinus barotrauma.  

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We report a case of a diver who suffered an episode of maxillary sinus barotrauma that presented with decreased sensation over the cutaneous distribution of the infraorbital nerve after an ascent which produced facial pain and crepitus. This case illustrates a potential confusion between a decompression sickness etiology and a barotraumatic etiology for the observed sensory deficit. The clinical features of this case were most consistent with a barotraumatic etiology for the findings noted. The anatomy of the trigeminal nerve and previous reports of cranial nerve deficits following barotrauma are reviewed. PMID:10642073

Butler, F K; Bove, A A

1999-01-01

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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

45

Aspergilloma of the maxillary sinus: report of a case  

International Nuclear Information System (INIS)

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

46

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

47

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

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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.

49

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

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CT-MPR invaluable in diagnosing odontogenic maxillary sinusitis  

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In everyday examination, it is usual to encounter odontogenic maxillary sinusitis patients. Odontogenic maxillary sinusitis is generally best diagnosed by dental X-ray imaging. Many medical facilities not having a dental X-ray unit use coronal computed tomography (CT) images to diagnose odontogenic maxillary sinusitis. Coronal CT imaging causes artifacts, however due to dental prosthesises. Computed tomography-Multiplanar reformation (CT-MPR) imaging has proved useful in evaluating the paranasal sinus because it is not influenced by dental prosthesises. We evaluated the usefulness of CT-MPR for diagnosing odontogenic maxillary sinusitis by retrospectively analyzing 16 patients, with the following results. We couldn't diagnose all cases of odontogenic maxillary sinusitis in posteroanterior and Waters projection images. Panoramic radiography is needed to diagnose odontogenic maxillary sinusitis. Dental X-ray imaging missed some cases, but all cases were diagnosed by CT-MPR imaging, giving a 100% diagnosestic rate. CT-MPR imaging is thus at least as valuable or better than dental X-ray imaging in diagnosing odontogenic maxillary sinusitis. (author)

Aoki, Hideaki; Shimazu, Kaoru; Kamada, Morito; Shiroyama, Akihiro; Mouri, Daisuke; Yamashita, Masashi; Kawasaki, Yasunori; Koseki, Takakazu; Mouri, Manabu [Osaka Dental Univ. (Japan)

2001-08-01

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Ectopic Molar with Maxillary Sinus Drainage Obstruction and Oroantral Fistula  

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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, ...

Shahin Abdollahifakhim; Mehrnoush Mousaviagdas

2013-01-01

52

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.

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The Relationship between Dental Indentation and Maxillary Sinusitis  

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Full Text Available Purpose: To determine the relationship between the dental root indentation and maxillary sinusitis. Methods: We assessed the records of the patients who underwent paranasal sinus computed tomography imaging for suspected sinusitis. Results: We identified a total of 52 patients with a pre-diagnosis of maxillary sinusitis. Dental indentation was detected in 58 of 104 (55.7% sinuses. Forty six of 58 sinuses (79.3% with dental indentation had mucosal thickening higher than 2 mm. The difference between the groups was statistically significant (p = 0.007. Conclusion: Dental indentation should be kept in mind as a reason for chronic maxillary sinus inflammation, if an underlying cause cannot be identified.

Duzgun Yildirim

2013-06-01

54

CT findings of fungal infection of maxillary sinuses  

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In recent years, fungal infection of the paranasal sinuses has increased. However, the preoperative diagnosis is often difficult. We report four cases of fungal infection of the paranasal sinuses. Their CT scans. Showed: 1) A high density area in the homogeneous shadow. 2) A mass suspected of being a fungus ball surrounding the opening of the maxillary sinus to the nasal cavity. 3) Thickening of bone in the maxillary sinus except in the inner wall. These results indicate that CT scanning is useful in the diagnosis of fungal infection of the paranasal sinuses. (author)

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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

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RELATION OF DEVIATED NASAL SEPTUM WITH CHRONIC MAXILLARY SINUSITIS.  

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Full Text Available introduction: A deviated nasal septum can produce nasal obstruction and may block thesinus drainage “ door-ways”, triggering recurrent or chronic infection. The presentstudy is based upon to find the relation of nasal septal deviation with chronic maxillarysinusitis.Materials and Methods: Two groups were made, one control group with midline nasalseptum and other group with septal deviation to either right or left side and maxillarysinusitis were studied. Signs of chronic maxillary sinusitis such as mucosal thickeningand air fluid level, were read using plane x-ray .Results: Findings suggested that there is a co-relation between the deviated nasalseptum with chronic inflammation of maxillary sinus.Conclusion: Of all paranasal sinuses, Maxillary sinuses are most constant in shape andsize, and also most commonly involved in chronic sinusitis. Deviated nasal septum wasfound to be the primary cause of chronic sinus disease in our study. Therefore, to treatsinusitis, septal deviation should be corrected.

ANUJ JAIN

2013-05-01

57

Histomorphometric analysis of human sphenoid and maxillary mucosa: measurement of relative density of goblet cells and basal cells.  

Science.gov (United States)

The majority of malignant tumors of the paranasal sinus are squamous cell carcinomas and arise most commonly in the maxillary sinus, and less commonly in the nasal cavity and other sinuses. Glandular tumors (nonsquamous tumors) develop much less commonly and have a different distribution within the paranasal sinuses. The majority of adenomatous tumors arise from the surface mucosa and submucosal seromucinous glands. Attempts to explain tumorigenesis propose that the distribution of these tumors is based on the variance of different cell types among the sinuses. The authors used morphometric analysis to measure the relative density of goblet cells and basal cells from maxillary, and sphenoid sinus specimens. Surgical specimens of normal maxillary and sphenoid mucosa were retrieved from 5 and 10 patients, respectively. All specimens were stained with periodic acid-Schiff stain. The area of goblet and basal cells in five representative areas of each specimen were measured and compared to the total cross-sectional area of the mucosa, giving a relative density of each cell type. The average goblet cell density was 31.19% (SD +/- 10.27%) in maxillary tissue and 33.25% (SD +/- 20.80%) in sphenoid tissue. Student's t-test showed no statistically significant difference in goblet cell density between the two sinuses. The average basal cell density was 9.53% (SD +/- 0.87%) for maxillary tissue and 10.91% (SD +/- 1.91%) for sphenoid tissue. Again, no statistically significant difference between the two sinuses existed. In conclusion, there is no clearly detectable difference in the histologic composition of these two paranasal sinuses to explain the different incidence of glandular tumors, and other etiologic factors must be considered in explaining tumorigenesis at these sites. PMID:11453508

Smith, S R; Brandwein, M; Gannon, P; Lawson, W

2001-01-01

58

A case of monostotic fibrous dysplasia of the maxillary sinus.  

Science.gov (United States)

Fibrous dysplasia is an uncommon benign disease of the bone, with slow progression. Monostotic involvement of the paranasal sinuses is rare. We report a 54-year-old woman who had complaints of facial asymmetry, chronic sinusitis, recurrent headaches, and nasal obstruction for two years. Conventional radiography showed opacification and expansion of the maxillary sinus. Axial and coronal computed tomography scans showed a heterogeneous mass that expanded the right maxillary sinus, leading to nasal obstruction and cortical thickening of the maxilla. No signs of destruction or erosion in the cortical bone were identified. An endonasal endoscopic biopsy was performed and the diagnosis of fibrous dysplasia was confirmed histologically. PMID:12970595

Erdem, L Oktay; Erdem, C Zuhal; Kargi, Sebnem

2003-05-01

59

Pleomorphic adenoma of maxillary sinus - a case report  

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Introduction: Pleomorphic adenoma is the most common head and neck benign glandular tumor. Pleomorphic adenoma of the maxillary sinus has rarely been described in the literature. Objective: To report a case of a patient with a unilateral nasal mass, originated from the maxillary sinus, with histopathological diagnosis of pleomorphic adenoma. Case Report: A.O.V., 55-year-old male Caucasian patient, who had been suffering from nasal obstruction for years and also presented a polypoid mass in th...

Butugan, Ossamu; Voegels, Richard L.; Romano, Fabrizio Ricci; Ishikawa, Camila Cristina

2008-01-01

60

Clinical, histological, and histomorphometrical analysis of maxillary sinus augmentation using inorganic bovine in humans: preliminary results.  

Science.gov (United States)

The aim of the present study was to evaluate bone formation after maxillary sinus augmentation using bovine bone substitute material Bio-Oss alone by means of clinical, histological, and histomorphometrical examination of human biopsies. Deproteinized bovine bone (DPBB, Bio-Oss) was used to fill cavities after elevation of the sinus mucosa following major sinus pneumatization. Twenty patients with edentulous posterior maxillae were treated with 20 sinus augmentation procedures using a 2-stage technique. Residual lateral maxillary bone height was less than 3 mm. Forty-nine Straumann endosseous implants were used to complete the implant-prosthetic rehabilitation. Forty cylinder-shaped bone biopsies were taken from the augmented maxillary region 8 months after grafting during the second-stage surgery before implant placement. All implants were loaded 3 months after insertion, and no failures were recorded. Histomorphometrical analysis showed an average percentage of newly formed bone of 17.6% (± 2.8%) and a proportion of residual bone substitute material of 29.9% (± 4.9%) of the total biopsy area. Intimate contact between newly formed bone and Bio-Oss was detected along 28.2% (± 6.8%) of the particle surfaces. The results also showed that in all cases, the DPBB granules had been interconnected by bridges of vital newly formed bone. Inorganic bovine bone appears to be biocompatible and osteoconductive, and it can be used with success as a bone substitute in maxillary sinus augmentation procedures. PMID:21905893

Bassil, Joseph; Naaman, Nada; Lattouf, Raed; Kassis, Cynthia; Changotade, Sylvie; Baroukh, Brigitte; Senni, Karim; Godeau, Gaston

2013-02-01

 
 
 
 
61

Odontogenic maxillary sinusitis diagnosed using conebeam x-ray CT  

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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)

62

Acute Maxillary Sinusitis Associated with Internal Sinus Lifting: Report of a Case  

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Sinus floor augmentation (SFA) is one of the techniques that has been proposed for improving the long-term retention of dental implants. The procedure involves the creation of a submucoperiosteal pocket in the floor of the maxillary sinus for placement of a graft consisting of autogenous, allogenic, or alloplastic material. Complications of the SFA predominantly consist of disturbed wound healing, hematoma, sequestration of bone, and transient maxillary sinusitis. In this report, we presented...

Alkan, Alper; C?elebi, Nu?khet; Bas?, Burcu

2008-01-01

63

Dentigerous cyst associated with an ectopic third molar in the maxillary sinus: A rare entity  

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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.

Srinivasa Prasad T; Sujatha G; Niazi Thanvir; Rajesh P

2007-01-01

64

Dentigerous cyst associated with an ectopic third molar in the maxillary sinus: A rare entity  

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Full Text Available 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.

Srinivasa Prasad T

2007-01-01

65

The CT findings of maxillary sinusitis comparing with conventional radiography  

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The CT findings of 42 patients with surgically verified benign lesions of the maxillary sinus were evaluated to demonstrate the value of CT. Comparison with conventional radiological methods was made. The opacification of the maxillary sinus lumen in Waters view shows the relationship in proportion to the soft tissue that occupies the sinus in CT finding. The thickening in the posterior wall of the maxillary antra may cause the opacification in Waters view. The Waters view can depict more significantly the maxillary soft tissue in CT finding than the Caldwell view and panoramic view. CT is of value in demonstration of fluid level, mucosal swelling, mucosal thickening and the thickening of the bony walls. (author)

66

CT scan for the diagnosis of maxillary sinus carcinoma  

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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)

67

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

Scientific Electronic Library Online (English)

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

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

68

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

Scientific Electronic Library Online (English)

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

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

2013-12-01

69

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

2014-01-01

70

Enophthalmos due to atelectasis of the maxillary sinus: silent sinus syndrome.  

Science.gov (United States)

Silent sinus syndrome is a clinical entity with the constellation of progressive enophthalmos and hypoglobus due to gradual collapse of the orbital floor with opacification of the maxillary sinus, in the presence of subclinical maxillary sinusitis. It occurs secondary to maxillary sinus hypoventilation due to obstruction of the ostiomeatal unit. In this paper, a 35-year-old woman with a complaint of asymmetry in her left eye and denting of upper eyelid was reported. In the left eye, upper sulcus was deepened and there was 3-mm hypoglobus. There was no diplopia or restriction of eye movements in any gaze positions. Hertel exophthalmometry revealed a 4-mm enophthalmos on the left eye. Computed tomographic scan of the orbita and paranasal sinuses showed left maxillary sinusitis, air-fluid level, and collapse of left maxillary sinus walls. In addition, inferior bulging in the left orbital floor was also reported. The treatment was a 2-stage operation. In the first stage, she underwent endoscopic septoplasty plus left maxillary antrostomy, and in the second stage, she underwent a subciliary orbital floor repair of the iliac bone resulting in the improvement of the enophthalmos and her cosmetic appearance. Regarding this case, the literature is also reviewed in detail. PMID:19884840

Arikan, Osman Kür?at; Onaran, Zafer; Muluk, Nuray Bayar; Yilmazba?, Pelin; Yazici, Ilker

2009-11-01

71

Barotrauma secondary to inflammatory maxillary sinus polyp: a case report.  

Science.gov (United States)

Sinus barotrauma, secondary to mucosal disturbances, is a common finding within the aviation community. Multiple etiologies have all led to mucosal inflammation and thickening with potential obstruction of the sinus osteomeatal complex, especially during the barometric changes of flight. Obstruction can, therefore, lead to problems with sinus pressure equilibration with atmospheric pressure, and can lead to barosinusitis. We present a case of a U.S. Air Force Command Pilot with acute left sinus barotrauma during descent while flying a T-37 aircraft, along with a brief review of the pathophysiologic processes involved during barotrauma. An inflammatory polyp within his sinus was identified by plain radiography, confirmed with computed tomography, and subsequently excised. The patient had complete resolution and clearance to fly after an uneventful 4-wk convalescence and altitude chamber flight. This is the first case of sinus barotrauma secondary to an inflammatory maxillary sinus polyp, confirmed by histologic diagnosis, reported in the aeromedical literature. PMID:12433240

Baughman, Steven M; Brennan, Joseph

2002-11-01

72

Estudo histológico e ultra-estrutural da mucosa do seio maxilar em pacientes com rinossinusite crônica e polipose nasossinusal Histology and ultrastructural study of the mucosa of the maxillary sinus in patients with chronic rhinosinusitis and nasosinusal polyposis  

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Full Text Available Na rinossinusite crônica, a inflamação da mucosa nasossinusal provoca alterações qualitativas e quantitativas do epitélio respiratório que recobre toda a cavidade nasossinusal, levando à manutenção do quadro inflamatório. FORMA DE ESTUDO: Caso-controle. MATERIAL E MÉTODO: Foram avaliados histopatologicamente dez pacientes com rinossinusite crônica (RC e polipose nasossinusal (PN por meio da história clínica e alérgica, estudo microbiológico, microscopia óptica, eletrônica de transmissão e varredura. RESULTADO: A diminuição do número de células colunares ciliadas, o aumento das células caliciformes, a diminuição do número de cílios por célula afetada e a metaplasia escamosa foram alterações freqüentemente encontradas nos casos de rinossinusite, explicando a persistência do quadro pela destruição no epitélio e quebra do sistema mucociliar.In chronic rhinosinusitis, inflammation of the rhinosinusal mucosa provokes qualitative and quantitative changes in the respiratory epithelium that lines the entire rhinosinusal cavity, leading to the maintenance of an inflammatory picture. STUDY DESIGN: Case-control. MATERIAL AND METHOD: In the present study we evaluated histopathologically ten patients with chronic rhinosinusitis on the basis of clinical and allergic history, microbiological study, and light, electron and scanning electron microscopy. RESULTS: A reduced number of ciliated columnar cells, an increase in goblet-like cells, a reduction in the number of cilia per affected cell and squamous metaplasia were changes frequently detected in the cases of rhinosinusitis, explaining the persistence of the signs and symptoms due to the destruction of the epithelium and to the breakdown of the mucociliary system.

João Vicente Dorgam

2004-01-01

73

Evaluation the success of osseointegrated implants in maxillary sinus grafts  

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

Rubens Eduardo Gigli

2008-01-01

74

Methylene blue mediated laser therapy of maxillary sinusitis  

Science.gov (United States)

The purpose of the present work is a clinical study of photodynamic therapy of maxillary sinusitis. 0.1%-Methylene Blue aqueous solution in combination with He-Ne laser irradiation (632.8 nm) have been used for treatment of maxillary sinus mucous of patients with acute and chronic maxillary sinusitis. The differences between the results of the treatment with dye and light versus treatment with a drug for every group of patients were statistically analyzed by Student’s t test. The efficacy of the photodynamic therapy was estimated with the use of the following criteria: the state of respiration, olfaction, duration of purulent discharge, reconstruction of transport function of ciliary epithelium, etc. The obtained results have shown that the photodynamic therapy is effective in comparison with conservative methods of treatment of the disease.

Genina, E. A.; Bashkatov, A. N.; Chikina, E. E.; Knyazev, A. B.; Mareev, O. V.; Tuchin, V. V.

2006-07-01

75

CT evaluation of maxillary sinus aspergillosis: morphological patterns on CT  

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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.

Kim, Dong Hyoun; Youn, Eun Kyung; Lee, Kuk Jin; Kim, Jung Hyeon [Koryo General Hospital, Seoul (Korea, Republic of)

1995-04-15

76

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 variables, residual crestal bone height (P < .001), implant position (P < .001), implant proximity (P < .001), prosthesis type (P < .001), implant failure (P < .01), and implant diameter (P < .01), were statistically associated with sinus augmentation. Within the limitations of this retrospective study, the results suggest that more than half (54.2%) of the maxillary posterior 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

77

Estudo histológico e ultra-estrutural da mucosa do seio maxilar em pacientes com rinossinusite crônica e polipose nasossinusal / Histology and ultrastructural study of the mucosa of the maxillary sinus in patients with chronic rhinosinusitis and nasosinusal polyposis  

Scientific Electronic Library Online (English)

Full Text Available SciELO Brazil | Language: Portuguese Abstract in portuguese Na rinossinusite crônica, a inflamação da mucosa nasossinusal provoca alterações qualitativas e quantitativas do epitélio respiratório que recobre toda a cavidade nasossinusal, levando à manutenção do quadro inflamatório. FORMA DE ESTUDO: Caso-controle. MATERIAL E MÉTODO: Foram avaliados histopatolo [...] gicamente dez pacientes com rinossinusite crônica (RC) e polipose nasossinusal (PN) por meio da história clínica e alérgica, estudo microbiológico, microscopia óptica, eletrônica de transmissão e varredura. RESULTADO: A diminuição do número de células colunares ciliadas, o aumento das células caliciformes, a diminuição do número de cílios por célula afetada e a metaplasia escamosa foram alterações freqüentemente encontradas nos casos de rinossinusite, explicando a persistência do quadro pela destruição no epitélio e quebra do sistema mucociliar. Abstract in english In chronic rhinosinusitis, inflammation of the rhinosinusal mucosa provokes qualitative and quantitative changes in the respiratory epithelium that lines the entire rhinosinusal cavity, leading to the maintenance of an inflammatory picture. STUDY DESIGN: Case-control. MATERIAL AND METHOD: In the pre [...] sent study we evaluated histopathologically ten patients with chronic rhinosinusitis on the basis of clinical and allergic history, microbiological study, and light, electron and scanning electron microscopy. RESULTS: A reduced number of ciliated columnar cells, an increase in goblet-like cells, a reduction in the number of cilia per affected cell and squamous metaplasia were changes frequently detected in the cases of rhinosinusitis, explaining the persistence of the signs and symptoms due to the destruction of the epithelium and to the breakdown of the mucociliary system.

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

2004-01-01

78

Endoscopic anatomy of the orbital floor and maxillary sinus.  

Science.gov (United States)

Endoscopic repair of orbital blow-out fractures could become a predictable and efficient treatment alternative to traditional methods. However, maxillary sinus endoscopy provides a complex and disorienting view of the orbital floor. To be a useful and consistent technique for providing access to the orbital floor, specific knowledge of maxillary endoscopic anatomy is required. The purpose of the study was to provide an anatomic description of the orbital floor via the endoscopic approach. Objectives include defining consistent landmarks for use in endoscopic repair of orbital floor fractures. Using 0- and 30-degree rigid endoscopes, 6 fresh cadavers (12 maxillary sinuses) were examined via a standard Caldwell-Luc approach. Computed tomographic scans, plastic molds, and digital images were used to compare observable averages within bony anatomy. Potential bony landmarks were correlated with soft-tissue anatomy in fresh specimens. The maxillary ostium, orbital floor, and lateral ethmoid air cells were visualized, and their structures were described. Observations were made in relation to the anatomy of the orbital floor and maxillary sinus, including fracture pattern and force transmission pathways. An "orbitomaxillary" sinus bony thickening was identified and described for the first time. This study provides the basis for further refinement of surgical technique and opens the door for future clinical trials using endoscopic repair. PMID:18216700

Moore, Corey C; Bromwich, Matthew; Roth, Kathy; Matic, Damir B

2008-01-01

79

[Sinus lifting operation peculiarities after radical maxillary sinusotomy].  

Science.gov (United States)

Taking into account possible development of some pathology in maxillae alveolar processes not always the fulfilled orthopantomographic study allowed to describe in full the clinical picture of maxillary sinuses. In case of such pathology it was necessary to carry out therapeutic or surgical sanation. After operation of radical maxillary sinusotomy the question about reconstruction operation of the sinus lifting type advisability was rather problematic. We suggested the scheme of such operation including in the first place volumetric X-ray patient's examination and also original technique of such operative intervention. PMID:19692954

Sadygov, R V; Orlov, A A; Biziaev, A F; Spitsina, V I

2009-01-01

80

Laser therapy of acute and chronic maxillary sinusitis  

Science.gov (United States)

The clinical results of photodynamic therapy of maxillary sinusitis have been presented. 0.1%-Methylene Blue aqueous solution in combination with He-Ne laser irradiation (632.8 nm) has been used for treatment of patients with acute and chronic maxillary sinusitis. Efficacy of the photodynamic therapy was estimated with the use of the following criteria: the state of respiration, olfaction, duration of purulent discharge, reconstruction of transport function of ciliary epithelium, etc. The obtained results have shown that the photodynamic therapy is effective in comparison with conservative methods of treatment of the diseases.

Bashkatov, Alexey N.; Genina, Elina A.; Chikina, Elena E.; Meglinski, Igor V.; Tuchin, Valery V.; Knyazev, Anatoly B.; Mareev, Oleg V.

2006-06-01

 
 
 
 
81

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.

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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

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Treatment results of maxillary sinus carcinoma  

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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.)

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The role of laser radiation therapy in maxillary sinusitis  

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Efficacy of prescribed noninvasive & invasive types of treatment of maxillary sinusitis has been compared with low-dose LASER therapy (LLT). After going through the observations of different authors on the therapeutic role of LLT (GaA1AS-LASER) in non-ENT infective diseases, its use in ‘sinusitis’ has been adjudged. Such type of study-report has not been found by us in the literatures, available to us.

Isser, D. K.; Sett, S.; Saha, B. P.

2002-01-01

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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

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Adult rhabdomyosarcoma of the maxillary sinus with orbital extension.  

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A 40-year-old male presented with 2 weeks of left facial pain, nasal congestion, dysphonia, and epistaxis along with left-sided epiphora. CT showed a large infiltrative mass centered in the left maxillary sinus with extension into the left orbit, bilateral paranasal sinuses, nasal cavity, and bilateral enlarged cervical lymph nodes. Biopsy results confirmed adult alveolar rhabdomyosarcoma (RMS). Systemic workup confirmed bilateral cervical lymph node metastasis. Currently the patient is undergoing chemotherapy. We describe a rare case of adult paranasal sinus RMS with orbital invasion. PMID:24832909

Parikh, Deep; Spindle, Jordan; Linden, Craig; Bardarov, Svetoslav; Shinder, Roman

2014-08-01

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Maxillary Sinus Barotrauma--Case Report and Review.  

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A case is presented in which a mucous retention cyst that obliterated the right maxillary sinus caused symptoms due to pressure on two separate branches of the second branch of the fifth cranial nerve during a chamber dive to 112 feet. The symptoms of pai...

L. M. Garges

1985-01-01

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A radiographic study of the experimental lesions in the maxillary sinus  

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hic 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.

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Malignant inflammatory myofibroblastic tumor of the maxillary sinus.  

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Inflammatory myofibroblastic tumors (IMTs) are extremely rare neoplasms with a variable natural history and biologic behavior, ranging from completely benign to malignant tumors with fatal outcome. They have no common identifiable cause, although some authors have assumed that any inflammatory stimulus may cause these pseudotumors. They are most commonly found in the lungs. Extrapulmonary sites include abdomen, retroperitoneum and extremities. IMTs rarely affect the head and neck, but the most common subsites in this region include the orbit, larynx, mouth, tonsils, parapharyngeal space, thyroid, parotid and lacrimal glands. There are few reports of inflammatory pseudotumors in the paranasal sinuses. In the maxillary sinus, the initial presenting sign is usually a nonspecific sinonasal mass, which has been growing over a period of weeks or months. On rare occasions, IMT may exhibit malignant transformation. Herein we present a rare case of pathologically proved IMT with malignant transformation which originated in the maxillary sinus of a 29-year-old male. PMID:24250100

Salehinejad, Jahanshah; Pazouki, Mahdi; Gerayeli, Mohammad Ali

2013-05-01

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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

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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

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Maxillary sinus lipoma: an unanticipated diagnosis.  

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Subcutaneous tissue gives rise to numerous lesions such as lipoma, the most common benign soft tissue tumors. Lipoma is seen only extremely rarely in osseous units. In addition, craniofacial involvement of intraosseous lipoma may be misdiagnosed as a fibroosseous tumour such as fibrous dysplasia. Here, we present a case of an intraosseous lipoma obviously destroying and invading the maxillary bone. PMID:17912102

Uysal, Afsin; Kayiran, Oguz; Cuzdan, Suat S; Bektas, Cem I; Aslan, Gurcan; Caydere, Muzaffer

2007-09-01

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Management of spindle cell carcinoma of the maxillary sinus: a case report and literature review.  

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Background Carcinosarcomas, also known as spindle cell carcinomas, are rare and highly aggressive tumors characterized by dual histologic differentiation of squamous cell and mesenchymal cell tumors. Occurrence of carcinosarcoma in maxillary sinus is very rare, with only 11 cases reported since 1957. The small number of reported cases creates an obstacle to the increased understanding of the behavior, prognosis, and therapeutic management of this tumor. Case Report A 52-year-old man presented with a 2-month history of right nasal obstruction. Computed tomography (CT) and magnetic resonance imaging (MRI) showed opacified right frontal, sphenoid, ethmoid, and maxillary sinuses with soft tissue density and expansion of the mass with erosion of the right lateral maxillary wall. Functional endoscopic sinus surgery (FESS) was done and histopathology revealed multiple fragments of nasal mucosa lined by stratified hyperplastic squamous epithelium with an increased degree of dysplasia and pleomorphism and a second spindle cell high-grade neoplastic growth with bizarre giant cells and abnormal mitotic figures. Consistent with carcinosarcoma, immunohistochemistry showed strong positive staining for vimentin in the spindle cell component and strong positive staining for cytokeratin markers in the epithelial cell component. The patient underwent right total maxillectomy with postoperative chemoradiation therapy and survived for 1 year. Conclusions Carcinosarcoma of the maxillary sinus is a rare disease with non-specific symptoms; it usually presents in the advance stage and is associated with poor patient prognosis. This case indicates that surgical intervention with postoperative chemoradiotherapy improves patient prognosis and should be considered as the standard therapeutic modality. PMID:25350698

Alem, Hisham B; AlNoury, Mohammed K

2014-01-01

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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

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Unique canal communicating between both maxillary sinuses through the palatine recess with hypertrophy of sinuses.  

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The result of an inappropriate growth of the jaws is in many cases related to abnormalities in the rest of the facial skeleton. We present a 21-year-old patient with a possibly unique anomaly of the maxillary sinus in skeletal class III dentofacial deformity. This anatomical variant has not to our knowledge been previously reported and all clinicians should be aware of it. It presented not only as hypertrophy of the sinuses but also as a communication between the two maxillary sinuses, and might be associated with a severe III class deformity with an extremely narrow maxilla. We describe this as a narrowed maxillary canal with no septum or membrane. PMID:24957470

Nelke, Kamil H; Pawlak, Wojciech; Morawska-Kochman, Monika; Guzi?ski, Maciej

2014-10-01

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Oral surgery as risk factor of odontogenic maxillary sinusitis  

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Full Text Available In order to determine the risk factors of odontogenic maxillary sinusitis, a total number of 40 patients with this pathological condition was examined in three-year period. Oroantral communication was detected in 40% of patients, oroantral fistula in 25%, sinus foreign bodies in 15% and other pathological conditions in 10% of cases. The extraction of the upper lateral teeth was the cause of odontogenic sinusitis in 65% patients. Given the specific tooth, the first upper molar was the most common cause of the condition, i.e. in 40% of cases. It may be concluded that odontogenic sinusitis is the complication of the oral cavity surgery in 85% of patients, what should be taken into consideration in prevention.

Ra?i? Alek

2006-01-01

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A Case Report of Maxillary Sinus Mucocele and Its Endoscopic Therapy  

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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 paten...

Shayani Nasab, M.

2004-01-01

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Endoscopic lift of the maxillary sinus floor in beagles.  

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The aim of this study was to introduce a modified endoscopic lift of the floor of the maxillary sinus in beagles. Twelve operations (bilateral and randomly chosen) were done in 6 beagles each in the test group (modified endoscopic operation), and the control group, in which the operation was done with an osteotome. All operations were evaluated by two indices of safety (perforation of the sinus membrane and nasal bleeding) and 3effective indices (the intraoperative height after lifting, volume of bone grafts, and dislocation of the sinus grafts). The sinus membrane was not perforated and there were no nasal bleeds in either group. The intraoperative height after lifting was 13.7 (0.8) mm in the test group and 9.1 (0.5) mm in the control group, so it was significantly higher in the test group than the control group (p=0.0001). Similarly, the volume of bone graft was 0.9 (0.04) ml in the test group and 0.5 (0.02) ml in the control group (p=0.0001). The volume of the anterior and posterior bone grafts in the implant cavity in the test group did not differ significantly (p=0.102), while there were significant differences in the control group (p=0.002). Endoscopic lifting of the floor of the maxillary sinus is a safe and effective approach based on direct observation in beagles. PMID:25174319

Zheng, JiSi; Zhang, ShanYong; Lu, ErYi; Yang, Chi; Zhang, WenJie; Zhao, JingYang

2014-11-01

99

Polymorphous Low-Grade Adenocarcinoma Located in the Maxillary Sinus  

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Full Text Available Polymorphous low-grade adenocarcinoma is a malignant epithelial tumour with low metastatic rate and infiltrative growth pattern. The palate is the most common site. Paranasal sinuses are uncommon venues for polymorphous low-grade adenocarcinoma. Here, we report a polymorphous low-grade adenocarcinoma case of the maxillary sinus, a very rare location. Although it is a low grade malignancy, progression may develop after a long time. Therefore, polymorphous low-grade adenocarcinoma should be kept in mind in the differential diagnosis even in rare sites in the head and neck.

Demet ET?T

2012-09-01

100

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

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

 
 
 
 
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Assessment of the relationship between odontogenic maxillary sinusitis and findings in the ostiomeatal unit on coronal CT images  

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The ostiomeatal unit (OMU) incorporates the maxillary sinus ostium, infundibulum, uncinate process, hiatus semilunaris ethmoid bulla, middle turbinate and middle meatus. The maxillary ostium is located in the superior portion of the medial maxillary wall and drains into the posterior aspect of the ethmoid infundibulum. The detailed anatomy of the OMU as displayed by CT provides a road map for surgeons prior to endoscopic sinus surgery. However, little attention has been paid to the relationship between the OMU and odontogenic maxillary sinusitis. This study examined the relationship between the osteomeatal unit and odontogenic maxillary sinusitis using coronal CT images. Materials consisted of 100 abnormal maxillary sinuses in 100 odontgenic maxillary sinusitis patients. Using coronal images, mucosal abnormalities were examined by grading expansion of the low density area, which represents the mucous membranes in the maxillary sinuses. Findings were classified into 3 types and the correlation between obstruction of the maxillary ostium and thickening of other sinonasal sinuses was examined. Results of the grading were as follows: 25 maxillary sinuses were graded as type 1, 22 maxillary sinuses as type 2, and 53 maxillary sinuses as type 3. On pattern analysis using coronal CT images, there were significant differences in obstruction of the maxillary ostium based on thickening of the mucous membranes of the odontgenic maxillary sinusitis (p<0.01); also there was a corr sinusitis (p<0.01); also there was a correlation between thickening of the mucous membranes of the ethmoid sinuses and thickening of the mucous membranes of the odontgenic maxillary sinusitis (p<0.01). Thickening of the mucous membranes of both the ethmoid sinuses and frontal sinuses was well correlated with obstruction of the maxillary ostium on coronal CT images (p<0.05). However, there was no correlation between obstruction of the maxillary ostium and sphenoid sinuses. Our study indicates that the severity of odontogenic maxillary sinusitis was well correlated with obstruction of the OMU on coronal CT images. (author)

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Nebenbefunde im Sinus maxillaris im Rahmen der kieferorthopädischen Behandlungsplanung  

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In recent years the cone beam computer tomography (CBCT) has received increasing importance for clinical diagnostic in the field of implantology, oral surgery, periodontology and orthodontics. In the past, the justified indications in orthodontics have mostly been related to single indications rather than on a comprehensive diagnosis for orthodontic treatment planning. CBCT studies on the prevalence of therapeutically relevant incidental findings in the nasal cavity and maxillary sinus are ra...

Gomolka, Konstanze

2013-01-01

103

Surgical management of an erupted complex odontoma occupying maxillary sinus  

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The occurrence of complex odontomas is not considered to be rare in the jaws. But the occurence of large odontomas obscuring the maxillary sinus, or erupting into the oral cavity are considered to be rare. The prognosis is good with surgical excision and recurrence is nil. Most of the times the surgical site can be closed primarily, but sometimes requires local flaps to achieve tension free closure. Here, we report such a case treated by surgical excision trans orally followed soft tissue def...

Arunkumar, K. V.; Vijaykumar; Garg, Nitin

2012-01-01

104

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

105

Fibrous dysplasia of the maxillary sinus: case report  

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Full Text Available Introduction and objective: Fibrous dysplasia is a non-neoplastic lesion of unknown origin with one-fourth involving head and neck. The aim of this paper is to report a case of fibrous dysplasia of the maxillary sinus, describing its clinical presentation, radiological features, histopathological appearance and surgical management. Case report: 3-year-old female patient who presented with a history of fullness of the right cheek and intraoral swelling was diagnosed to have fibrous dysplasia of the maxilla with involvement of the maxillary sinus based on the radiological features.The case was managed surgicall yvia a conventional Caldwell-Luc approach.The histopathology of the excised tissue confirmed the diagnosis of fibrous dysplasia.Conclusion:Fibrous dysplasia is a benign non-neoplastic lesion of unknown origin that rarely involves the maxillary sinus.This case report highlights the clinical, radiological and pathological features of fibrous dysplasia and its surgical management.Conventional Caldwell-Luc approach allows more exposure and ensures complete removal of the lesion.

Vijayalakshmi Subramaniam

2010-07-01

106

Myoepithelial carcinoma arising in recurrent pleomorphic adenoma in maxillary sinus.  

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Myoepithelial carcinoma is characterized by nearly exclusive myoepithelial differentiation and evidence of malignancy. It may arise de novo or in preexisting benign tumors including pleomorphic adenoma and benign myoepithelioma. A 39-year-old lady presented with painless progressive swelling on the right cheek and right side of palate. On surgery, there was a mass in right maxillary sinus which was surgically excised and diagnosed on histopathology as pleomorphic adenoma. Subsequently, there were two recurrences. The first recurrence was in the right maxilla after 2 years that was removed surgically and diagnosed as pleomorphic adenoma. One year later, she came with rapidly progressive swelling in bilateral cheeks and face. Intraoperatively, there was a large tumor in both maxillary sinuses with extensive local infiltration. Histologically, it was diagnosed as myoepithelial carcinoma. Carcinoma ex pleomorphic adenoma is usually a high grade malignancy. It occurs most commonly in parotid gland followed by submandibular glands, minor salivary glands and occasionally in sublingual gland. To the best of our knowledge, this is the first case of myoepithelial carcinoma arising in a recurrent pleomorphic adenoma in the maxillary sinus. PMID:24574666

Gupta, Ashumi; Manipadam, Marie Therese; Michael, Rajiv

2013-09-01

107

Ameloblastic carcinoma of the maxillary sinus.  

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Ameloblastic carcinoma is a very rare malignant odontogenic neoplasm of the mandible and maxilla, accounting for some 66 reported cases. The case of a 68-year-old man who presented a fistula with orosinus communication of 14-year duration that, after anti-aggregant therapy, began bleeding is reported. The initial microscopic evaluation of the biopsy and radiographic findings were consistent with benign peripheral ameloblastoma without cellular atypia and extensive fields of acantomatous pattern, but immunohistochemical investigation found strong positivity for Bcl-2, cytokeratins CAM 5 and 6, and for Ki-67/MIB-1, changing our diagnosis. The treatment consisted of left maxillary resection followed by reconstruction. Cellular features of malignancy in the surgical specimen confirmed the diagnosis of ameloblastic carcinoma. This case of an aggressive ameloblastic carcinoma of the maxillary gingiva that presented with an unusual histological pattern illustrates that these tumors can create a diagnostic challenge that may require extensive surgical sampling and/or removal to establish the diagnosis. Immunohistochemically analyzed expression of bcl-2 protein, cytokeratins CAM 5 and 6, and Ki-67/MIB-1 antigen serve to characterize the cyto-differentiation and cellular activity of ameloblastic carcinoma. PMID:19192639

Angiero, Francesca; Borloni, Roberto; Macchi, Maurizia; Stefani, Michele

2008-01-01

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Perbandingan Pola Kuman Aerob dan Sensitifitasnya terhadap Antibiotik antara Cavum Nasi dan Sinus Maksila pada Penderita Rinosinusitis Maksila Kronis  

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Abstract. Background: Sinusitis is an inflammation of the paranasal sinus mucosa. Generally accompanied or rhinitis triggered by so often called rhinosinusitis. Maxillary sinusitis is a chronic inflammatory process of the maxillary sinus mucosa due to infection and lasted more than 3 months. Objective: To determine the pattern of aerobic bacteria and test sensitivity in patients with chronic maxillary sinusitis specimens derived from rice and maxillary sinus cavity. Methods and materials: Thi...

Gani, Abdul

2014-01-01

109

Radiological diagnosis of maxillary sinus aspergillosis. Radiologische Diagnostik der Kieferhoehlenaspergillose  

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Aspergillosis of the maxillary sinuses shows an increasing incidence in even otherwise healthy patients. Next to inhalation as the mode of infection, a dental root canal filling with an orosinusal fistula can be the cause. As most infections remain initially undetected or underestimated as common sinusitis, early diagnosis must be achieved. Standard X-ray of the paranasal sinuses, conventional tomography as well as CT scans are of major importance. Centrally located hyperdense opacifications are a good criterion and can be best seen in CT. Even when the case has not progressed too much, radical surgery combined with Amphotericin B therapy is still the treatment of choice since the infection may progress rapidly. (orig.).

Schulte, B.; Beyer, D. (Akademisches Lehrkrankenhaus, Porz (Germany). Radiologische Abt.)

1992-11-01

110

Clinal variation of maxillary sinus volume in Japanese macaques (_Macaca fuscata_)  

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Macaques (genus Macaca) are unique among cercopithecids in that they possess a maxillary sinus, and among anthropoids in that they demonstrate a relatively weak relationship between the size of this sinus and the cranium. To test the hypothesis that extrinsic factors may contribute to maxillary sinus size variation, a sample of 46 Japanese macaque (M. fuscata) crania from known localities were subjected to computed tomography (CT) imaging, and sinus volume and nasal cavity area were analyzed ...

Rae, T. C.; Hill, R.; Hamada, Y.; Koppe, T.

2003-01-01

111

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

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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.

113

Evaluation of the postoperative maxillary sinus with computed tomography  

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

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Idiopathic bilateral antral exostoses: A rare case in maxillary sinus  

Science.gov (United States)

INTRODUCTION Exostoses in paranasal sinuses have been reported in the otolaryngology literature, but they have not been described in the dental literature to our knowledge. The aim of this article is to describe an idiopathic and rare case of bilateral exostosis obtained by cone-beam computed tomography. PRESENTATION OF CASE The case shows a healthy and asymptomatic patient with a different size and form of exostoses in both maxillary sinuses. DISCUSSION It is difficult to clinically diagnose the antral exostosis due the asymptomatic nature of this condition, unless the approach would be through endoscope. Sometimes this condition is related with nasal irrigants, however in this case the patient asserted not having used nasal irrigation ever; thus, it is impossible to relate this kind of treatment as a principal cause. CONCLUSION The published data of exostoses in maxillary sinus seem to be limited in the dental literature, and this condition is important to consider in an implant treatment planning. Also, it is important to perform a follow-up of the cases in trying to find the possible causes of exostosis. PMID:25128728

Borie, Eduardo; Watanabe, Plauto C.A.; Orsi, Iara A.; Fuentes, Ramon

2014-01-01

115

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

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

Prabhu, Sanjay P.; Robson, Caroline D. [Children' s Hospital Boston and Harvard Medical School, Department of Radiology, Division of Neuroradiology, Boston, MA (United States); Padwa, Bonnie L. [Children' s Hospital Boston and Harvard Medical School, Department of Oral and Maxillofacial Surgery, Boston, MA (United States); Rahbar, Reza [Children' s Hospital Boston and Harvard Medical School, Department of Otolaryngology and Communication Enhancement, Boston, MA (United States)

2009-10-15

116

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

International Nuclear Information System (INIS)

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

117

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 2156t-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.)

118

Maxillary sinus 3D segmentation and reconstruction from cone beam CT data sets  

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Purpose: Segmentation of the maxillary sinuses for three-dimensional (3D) reconstruction, visualization and volumetry is sought using an automated algorithm applied to cone beam computed tomographic (CBCT) data sets. Materials and methods: Cone beam computed tomography (CBCT) data sets of three subjects aged 9, 17, and 27 were used in 3D segmentation and reconstruction. The maxillary sinuses were obtained by propagation from one start point in the right sinus and one start point in the left sinus to the whole regions of both sinuses. The procedure was based on voxel intensity distributions and common anatomic structures, specifically each middle meatus of the nasal cavity. A program was written in C++ and VTK languages to demonstrate the surface topological shapes of the maxillary sinuses. Results: The developed segmentation algorithm separated maxillary sinuses successfully permitting accurate comparisons. It was robust and efficient. 3D morphological features of the maxillary sinuses were observed from three human subjects. Conclusions: Automated segmentation of maxillary sinuses from CBCT data sets is feasible using the proposed method. This tool might be useful for visualization, pathological diagnosis, and treatment planning of maxillary sinus disorders. (orig.)

Shi, Hongjian [Louisville Univ., KY (United States). Computer Vision and Image Processing Lab.; Scarfe, W.C.; Farman, A.G. [Louisville Univ., KY (United States). Div. of Radiology and Imaging Science

2006-08-15

119

Computed tomography measurements of different dimensions of maxillary and frontal sinuses  

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

Abul-Kasim Kasim

2011-04-01

120

Myxofibrosarcoma of the maxillary sinus: a case report.  

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Full Text Available Myxofibrosarcoma, also known as myxoid variant of malignant fibrosis histiocytoma, is often located in the extremities and retroperitoneum of adult males. Its incidence in the ENT area is very low, therefore its diagnosis is often complicated. It has a high rate of local recurrence, although it has low rate of distant metastases. The only effective treatment is complete surgical resection, with little response to chemotherapy and radiotherapy. We present the case of a high-grade myxofibrosarcoma of the left maxillary sinus and nasal cavity, wich we treated with surgery and chemoradiation, but with bad clinical evolution.

Castro-Macia O, Rodriguez-Acevedo N, Alonso-Párraga D, Pérez-Pedrosa A, Quintana-Sanjuas A, Hamdan-Zabarce M, Meléndez-Garcia JM

2012-12-01

 
 
 
 
121

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.)

122

Maxillary sinus agenesis - report of two cases; Agenesia do seio maxilar - relato de dois casos  

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Agenesis or aplasia of the maxillary sinuses is an extremely rare condition, and only eight cases have been reported in the world medical literature. These malformations may arise as a result of developmental defects. Two cases of unilateral agenesis of the maxillary sinus are presented and the radiological abnormalities and the embryology are discussed. The literature is also reviewed. (author)

Pierre, Jorge Henrique Arraes de Alencar; Santana, Expedito Araujo

2000-04-01

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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

124

Clinical study of pathways rising inflammatory diseases in the maxillary sinuses  

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Full Text Available Pathways of the maxillary sinus diseases is an interesting issue investigated by many authors during the past decades. The goal of this research was to study the pathways of infection spreading into the maxillary sinuses and to compare them in relation to their frequency, underlying causes and general epidemiologic characteristics of the involved population. A total number of 150 adult patients of both gender suffering different diseases of maxillary sinuses were included into the study. Pathways rising maxillary sinuses diseases were diagnosed on the basis of standard clinical procedures including CT sceau and MRI of the region. We found inflammatory processes to dominate the tumorous ones (107:43 patients. Rhinogenic type of sinusitis was the most frequent disease (72 patients while odontogenic sinusitis (35 patients was significantly less frequent. No case of traumatic or hematogenic maxillary sinusitis was found. Rhinogenic maxillary sinusitis is characterized by spontaneous onset while odontogenic one is mostly of arteficial origin after surgical procedures in the oral cavity (88% of patients. In contrast to rhinogenie type, odontogenic maxillary sinusitis is far more frequent in younger patients.

Janoševi?-Dotli? S.

2004-01-01

125

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)

126

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

127

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.

128

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

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

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

2003-01-01

129

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.

130

Radiodense concrements in sinus maxillaris-CT diagnosis of sinus aspergillosis  

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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.)

131

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

132

Video endoscopic oro-nasal visualisation of the anterior wall of maxillary sinus: a new technique.  

Science.gov (United States)

The anterior wall of the maxillary sinus represents a blind spot in maxillary sinus endoscopic surgery because of the absence of proper visualisation and instrumentation to reach it. The aim of this study was to validate a new approach through the oral cavity into the nose with a flexible video endoscope (oro-nasal endoscopic approach; ONEA) to visualise the entire anterior maxillary wall including the anteromedial angle. We started from a dried bone cadaver model, and then dissected fresh-frozen cadavers. The maxillary sinus was explored with a rigid and a flexible endoscope entering from the nose. Next, a flexible endoscope was introduced through the mouth and back up through the choana, it accessed the maxillary middle antrostomy, entering inside the sinus and looking at the anterior wall. A small ruler inserted inside the sinus demonstrated all the angles visualised. The new ONEA technique allows complete visualisation of the anterior wall of the maxillary sinus with inspection of all blind spots. It is therefore possible to detect lesions that would normally not be visible with a normal rigid endoscope. We demonstrate the validity of a novel technique that allows visualisation of the infero-medial angle of the anterior wall of the maxillary sinus. PMID:25210220

Trimarchi, M; Tomazic, P V; Bertazzoni, G; Rathburn, A; Bussi, M; Stammberger, H

2014-08-01

133

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.

134

Differential radiologic diagnosis of the spherical shades found in the maxillary sinus  

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Data, obtained during clinical and radiologic examination of 203 patients have been analysed. It was found that the error percentage in diagnosis of the spherical shades in the maxillary sinuses reaches 22 % according to plain radiography of the nasal sinuses. A radiologic sympton of the spherical shade in the lumen of the maxillary sinus may be detected either in bening processes (retentive and odontogenic cysts, bening tumors, fibrous dysplasia of the jaws, etc.), or in malignant tumors, originating from the alveolar process area and the hard palate. Some radiologic signs of the most common diseases, accompanied by the sherical shade sympton in the lumen of the maxillary sinus, are described. A verification of both localization and nature of pathologic process in the maxillary sinus is carried out by means of multiposition craniography and various modifications of the stratifying X-ray examination

135

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

136

Near-infrared imaging of the sinuses: preliminary evaluation of a new technology for diagnosing maxillary sinusitis  

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Diagnosing sinusitis remains a challenge for primary care physicians. There is a need for a simple, office-based technique to aid in the diagnosis of sinusitis without the cost and radiation risk of conventional radiologic imaging. We designed a low-cost near-infrared (NIR) device to transilluminate the maxillary sinuses. The use of NIR light allows for greater interrogation of deep-tissue structures as compared to visible light. NIR imaging of 21 patients was performed and compared with computed tomography (CT) scans. Individual maxillary sinuses were scored on a scale from 0 to 2 based on their degree of aeration present on CT and similarly based on the NIR signal penetration into the maxilla on NIR images. Our results showed that air-filled and fluid/tissue-filled spaces can be reasonably distinguished by their differing NIR signal penetration patterns, with average NIR imaging scores for fluid-filled maxillary sinuses (0.93+/-0.78, n=29) significantly lower than those for normal maxillary sinuses (1.62+/-0.57, n=13) (p=0.003). NIR imaging of the sinuses is a simple, safe, and cost-effective modality that can potentially aid in the diagnosis of sinusitis. Long-term, significant device refinement and large clinical trials will be needed to determine the diagnostic accuracy of this technique.

Mahmood, Usama; Cerussi, Albert; Dehdari, Reza; Nguyen, Quoc; Kelley, Timothy; Tromberg, Bruce; Wong, Brian

2010-05-01

137

A comparative study of radiographic images of maxillary sinusitis  

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The purpose of this study was to evaluate the Waters' views, panoramic and periapical radiograms as well as clinic al symptoms in the diagnosis of maxillary sinusitis. The author analyzed the types of mucosal thickenings, the types of bony wall changes, the pathologic changes of antra l floors and total amount of agreement on radiograms in 495 patients with 505 maxillary sinuses which demonstrated radio graphic changes. The results were obtained as follows : 1. 125 cases (24.8%) showed the mucosal thickening of antral floor and lateral wall (Type II), 106 cases (20.9%) showed the mucosal thickening around the whole antral wall (Type IV) and 75 cases (14.8%) showed increased radiopacity of whole antrum. 2. Among 505 cases of mucosal thickening, 319 cases (63.2%) showed the bony wall changes : 114 cases (35.9%) showed the thining of lateral walls, 105 cases (32.8%) showed the thickening of lateral walls and 47 cases (14.7%) showed indistinct antral walls. 3. Among 6 types of mucosal thickenings, the incidence of bony wall changes was high in type VI (73.3%) and in type IV (71.6%). 4. 139 cases (25.1%) showed no pathologic change of antral floor, 127 cases (22.9%) showed the indistinct antral floor and 022 cases (22.1%) showed the halo appearance of antral floor on panoramic and periapical radiograms. 5. 449 cases (88.9%) showed apparent increased radiopacity and 47 cases (9.3%) showed suspicious increased radiopacity on Waters' views. 280 cases (71.6%) showed apparent increased radiopacity and 88 cased (22.5%) showed suspicious increased radiopacity on panoramic radiograms. And 141 cases (31.6%) showed apparent increased radiopacity and 133 cases (33.4%) showed suspicious increased radiopacity on periapical radiograms.

Song, Nam Gyu; Koh, Kwang Joon [Dept. of Oral and Maxillofacial Radiology, College of Dentistry, Chonbuk National University, Chonju (Korea, Republic of)

1997-02-15

138

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

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To compare the size and bone wall thickness of the maxillary sinus in normal, preoperative and postoperative maxillary sinusitis patients. The author analyzed CT images of both left and right maxillary sinuses in 357 patients who visited Chonbuk National University Hospital between January 1997 and December 1998. The size and bone wall thickness of the maxillary sinus of normal, inflammatory and post-Caldwell-Luc groups were compared. The significant differences of transverse, maximum medio-lateral, maximum supero-inferior dimensions and medio-lateral dimension at nasal floor level between normal and post-Caldwell-Luc groups were found (P<0.05). And the significant differences of antero-posterior dimensions between inflammatory and post-Caldwell-Luc group were found (P<0.05). But, no significant differences of vertical height dimensions between groups was found (P>0.05). The significant differences of postero-lateral, infero-lateral and medial wall thickness between normal and post-Caldwell-Luc groups were found (P<0.05). The results of this study will aid in the diagnosis and treatment of maxillary sinus diseases and post operative treatment planning.

Choi, Sun Young; Koh, Kwang Joon [Dept. of Oral and Maxillofacial Radiology and Institute of Oral Bio Science, School of Dentistry, Chpnbuk National University, Chonju (Korea, Republic of); Lee, Sang Rae [Dept. of Oral and Maxillofacial Radiology, School of Dentistry, Kyunghee University, Seoul (Korea, Republic of)

2000-06-15

139

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

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

140

Role of Modified Endoscopic Medial Maxillectomy in persistent chronic maxillary sinusitis  

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Full Text Available Objective: Functional endoscopic sinus surgery (FESS 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 persistent 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. We have performed modified endoscopic medial maxillectomy (MEMM for such patients’ with persistent maxillary sinus disease as a means of providing effective drainage and clearance of secretions. Design: 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, follow up details and categorized the types of Endoscopic Medial Maxillectomies performed in different disease situations. Subjects and interventions: We performed Modified endoscopic medial maxillectomies (MEMM in 37 maxillary sinuses of 24 patients. Results: The average age was 43.83 years. Average follow up was 14.58 months.All patients had good disease control in the post operative visits with no clinical evidences of recurrences. Conclusion: Modified endoscopic medial maxillectomy appears to be an effective surgery for treatment of chronic, recalcitrant maxillary sinusitis.

P Thulasidas

2014-06-01

 
 
 
 
141

Role of Modified Endoscopic Medial Maxillectomy in Persistent Chronic Maxillary Sinusitis  

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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.

142

Role of Modified Endoscopic Medial Maxillectomy in Persistent Chronic Maxillary Sinusitis  

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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.

2014-04-01

143

Orthodontic tooth movement through the maxillary sinus in an adult with multiple missing teeth.  

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This case report describes the successful orthodontic tooth movement through the maxillary sinus in an adult patient. A 41-year-old Asian woman had severe lip protrusion and multiple missing posterior teeth. Her orthodontic treatment included the extraction of 2 teeth, maximum retraction of the incisors using the extraction spaces and the existing spaces from the missing molars, and closure of all remaining spaces. Even though the treatment time was extended because of the anatomic and biologic challenges associated with moving posterior teeth over a long distance through the maxillary sinus, a successful outcome was obtained, with significant bone modeling of the maxillary sinus. The results demonstrate that a carefully selected force system can overcome the anatomic limitations of moving tooth against the cortical bone of the maxillary sinus wall in adult patients. PMID:25263152

Oh, Heesoo; Herchold, Kiri; Hannon, Stephanie; Heetland, Kelly; Ashraf, Golnaz; Nguyen, Vince; Cho, Heon Jae

2014-10-01

144

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.

145

The thick-walled usually opacified maxillary sinus-conventional CT radionuclide ultrasound correlative studies  

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The thickening of the wall of the maxillary sinus, observed in standard radiology poses many questions for clinicians. Computed tomography, ultrasonography and scintigraphy each provide an anatomical and physiological interpretation of the process. Four cases are reported

146

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

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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)

147

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

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

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

2013-09-01

148

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

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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

149

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

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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.

Darsey, Drew M.; English, Jeryl D.; Ellis, Randy K.; Akyalcin, Sercan [School of Dentistry, University of Texas Health Science Center at Houston, Houston (United States); Kau, Chung H [School of Dentistry, University of Alabama at Birmingham, Birmingham (United States)

2012-06-15

150

The ability of panoramic radiography in assessing maxillary sinus inflammatory diseases  

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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.

151

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

152

A case report of an inverted papilloma infiltrating into maxillary sinus  

International Nuclear Information System (INIS)

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.

153

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

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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 10 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 dif...

Cesar Coronado; Oscar Arriagada; Iván Suazo Galdames

2011-01-01

154

Results of combined therapy for maxillary sinus squamous cell carcinoma  

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The results of 54 cases of maxillary sinus squamous cell carcinoma treated between 1980 and 2002 were analyzed retrospectively. The T classification according to the 1997 Union Internationale Contre le Cancer (UICC) was as follows: 2 with stage T1, 29 with T3, and 23 with T4. Ten patients (18.5 %) had lymph node metastases at diagnosis. All patients underwent combined therapy including radiotherapy, surgery, and regional or systemic chemotherapy. Fifteen patients received hyperfractionated twice-daily radiotherapy (1.2 Gy or 1.5 Gy/fraction), and the remaining 39 patients received a conventional once-daily regimen (1.5-2 Gy/fraction). The 5-year overall survival and 5-year disease-free survival for all patients were 56.0% and 46.7%, respectively. The N classification was the only significant prognostic factor for 5-year disease-free survival by univariate analysis (favoring N=0, p=0.04). There were no significant differences in other prognostic factors including gender, T classification (T1-3 vs. T4), hyperfractionated radiotherapy (yes vs. no), total dose (biological effective dose (BED): 10 vs. ?69 Gy10), and intra-arterial chemotherapy (yes vs. no). Although radiation-induced cataract was observed in 9 patients, no other severe late complications developed. (author)

155

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

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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)

156

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.

157

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

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

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

2013-12-01

158

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

Scientific Electronic Library Online (English)

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

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

159

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

160

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

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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.

Renato Jahjah Cunha, Martins; Henrique Manoel, Lederman.

 
 
 
 
161

The ethmoido-maxillary plate and paranasal sinuses. A study by HRCT  

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The ethmoido-maxillary plate is a thin layer of bone separating the maxillary sinus from the ethmoidal cells or sphenoidal sinus. The plate was studied using axial HRCT images obtained from various otological lesions. One hundred forty-one adults were included in this study. The ethmoido-maxillary plate was first classified into four groups of configurations, namely, straight or near-straight, anterior-concave, posterior-concave and ant. and post. concave forms. The incidences of these forms were 55%, 23%, 13%, and 9%, respectively. A symmetrical configuration between the two sides was seen in 50%. The numbers of ethmoidal cells and/or sphenoidal sinus in contact with the plate and their incidences were 2 cells (47%), 3 cells (30%), 1 cell (15%), 4 cells (5%), and 5 cells (1%). The straight form showed lower numbers of cells than the other forms. The sphenoidal sinus and the maxillary sinus were in direct contact with each other at the ethmoido-maxillary plate in 19% of cases. (author)

162

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

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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.

163

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

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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.

164

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

165

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.

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

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Computed Tomography Findings of an Unusual Maxillary Sinus Mass: Brown Tumor Due to Tertiary Hyperparathyroidism  

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Brown tumor is a non-neoplastic bone lesion that develops secondary to hyperparathyroidism and it is very rare in the maxillofacial region. We report the case of a 59-year-old man who presented with pain and a swelling in the left cheek. Computed tomography (CT) demonstrated an expansile and radioluscent lesion in the left maxillary sinus. Incisional biopsy was performed, and the diagnosis was Brown tumor. Brown tumor must be considered in the differential diagnosis of expansile lesions of maxillary sinus. PMID:24404414

Altay, Canan; Erdogan, Nezahat; Eren, Erdem; Altay, Sedat; Karasu, Sebnem; Uluc, Engin

2013-01-01

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

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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 posterio...

Amir Hossein Jafarian; Abbas Ali Omidi; Mohammad Mehdi Ghasemi; Bahareh Joushan

2011-01-01

168

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

169

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

170

The most often causes of odontogenic maxillary sinusitis  

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Full Text Available In the period 2000-2002, 40 patients with odontogenic sinusitis were examined at the Institute for ENT and Maxillofacial Surgery, Clinical Centre of Serbia. Oroantral communication was detected in 40% of the patients, oroantral fistula in 35%, sinus foreign bodies in 15% and other conditions in 10% of the cases. The extraction of the upper lateral teeth was the cause of odontogenic sinusitis in 65% of the cases. Given the specific tooth, the first upper molar was the most often cause of the condition, i.e., in 40% of cases. Odontogenic sinusitis as the complication of the oral cavity surgery was found in 85% of the patients.

Ra?i? Alek

2004-01-01

171

The Elevation of the Maxillary Sinus: Our Clinical Experience  

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In the rehabilitation analysis of the oral cable of a patient partially or totally without teeth today finds great reference uses techniques of implant. These techniques can to times be limited from the not often acceptable anatomical situation and therefore to turn out unacceptable in some cases: "inferior alveolar channel, nasal cavity, maxillary breast". Just the maxillary breast today turns out to be one of the anatomical obstacles more frequent, just for its particular tendency to introd...

Valenza, V.; Patola, G.; Sajeva, M.; Carini, F.; Scardina, G. A.; Varia, P. L.; Messina, P.

2006-01-01

172

Two cases with radiation-induced cancers after radiation therapy for cancer of the maxillary sinus  

International Nuclear Information System (INIS)

We experienced 2 patients with malignant non-epithelial tumors that developed following an incubation stage of 10 years or more after radiation therapy for cancer of the maxillary sinus. In Patient 1, the primary cancer was unclear, but it was speculated that this patient had been treated for cancer of the maxillary sinus. In patient 2, cancer of the maxillary sinus had been treated in our hospital. In patient 1, the secondary cancer was a malignant histiocytoma of the parapharyngeal space. In patient 2, the secondary cancer was a spindle cell sarcoma in the maxillary sinus. According to the classification of the probability of radiation-induced cancer after treatment for malignant tumors, the probability was evaluated as A in Patient 2, and B or higher in Patient 1. In the two patients, radiation-induced cancer was strongly suggested. For treatment, extended surgery was indicated, as a rule. In Patient 1, radical neck dissection was performed. In patient 2, tumorectomy was performed several times. Concerning the prognosis, Patient 1 is alive without cancer, but Patient 2 died of intracranial invasion by tumor. The invasion of the tumor and histological type may have influenced the prognosis. The incidence of radiation-induced cancer is considered to be 1% or less. However, radiation therapy-related late disorder must be considered. (author)

173

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

174

Usefulness of Panoramic Radiography in the Detection of Maxillary Sinus Pathosis  

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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.

175

Clinical study on the observation of unilateral shadows in the maxillary sinus  

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In the everyday examination of patients exhibiting a unilateral shadow in the maxillary sinus upon imaging, the differentiation of chronic sinusitis from other diseases, including malignant tumors, is extremely important. A unilateral shadow in the maxillary sinus was detected on scout films and a subsequent CT examination of the sinus was performed in 108 patients who visited our department between January 1994 and December 1998. Bone destruction was suspected after scout films were taken in 2 patients with malignant tumors. These 2 patients account for only a small percentage of the total patient population, but account for as much as 50% of the patients with malignant tumors. In cases of malignant tumors, the CT images suggesting bone destruction agreed with operative findings. CT seems to be a useful tool for evaluating the condition of the bone. When the density of scout films and CT images were compared, no significant difference was detected, suggesting that scout films can be used for the screening of malignant tumors. The density was (+++) in both the scout films and the CT images of the 2 patients with malignant tumors. Finally, we present a flow chart for the diagnosis of unilateral maxillary sinus shadows that has been recently adopted as the basic protocol used in our department. (author)

Hattori, Hirokazu; Sawada, Tatsuya; Hayano, Yoshiaki; Suzuki, Kenji; Yagisawa, Mikio; Nishimura, Tadao [Fujita Health Univ., Nagoya (Japan). Second Affiliated Hospital

2000-12-01

176

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

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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)

177

Maxillary rhinosinusitis due to Fusarium species leading to cavernous sinus thrombosis.  

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Fungal rhinosinusitis is being recognized and reported with increasing frequency over the last two decades worldwide. Intracranial extension is the most dreaded complication of fungal sinusitis with high mortality rates. We report a case of chronic rhinosinusitis in a 55-year-old diabetic male, caused by Fusarium species. The patient was diagnosed as a case of chronic left maxillary sinusitis with cavernous sinus thrombosis. The sinus lavage showed fungal elements on direct microscopic examination and culture revealed growth of Fusarium species within 4 days of incubation. Conservative therapy with IV amphotericin B resulted in favorable outcome of the patient. This is an extremely rare case where cavernous sinus thrombosis occurred as a complication secondary to Fusarium species rhinosinusitis. PMID:23369573

Rajmane, V S; Rajmane, S T; Patil, V C; Patil, A B; Mohite, S T

2013-03-01

178

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

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

Kim, Kyung Soo

2014-07-01

179

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

180

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.

 
 
 
 
181

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  

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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 suggeus 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)

182

Clinical study of paranasal sinus carcinoma except for maxillary sinus carcinoma  

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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)

183

Non-intrusive optical study of gas and its exchange in human maxillary sinuses  

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We demonstrate a novel non-intrusive technique based on tunable diode laser absorption spectroscopy to investigate human maxillary sinuses in vivo. The technique relies on the fact that free gases have much sharper absorption features (typical a few GHz) than the surrounding tissue. Molecular oxygen was detected at 760 nm. Volunteers have been investigated by injecting near-infrared light fibre-optically in contact with the palate inside the mouth. The multiply scattered light was detected externally by a handheld probe on and around the cheek bone. A significant signal difference in oxygen imprint was observed when comparing volunteers with widely different anamnesis regarding maxillary sinus status. Control measurements through the hand and through the cheek below the cheekbone were also performed to investigate any possible oxygen offset in the setup. These provided a consistently non-detectable signal level. The passages between the nasal cavity and the maxillary sinuses were also non-intrusively optically studied, to the best of our knowledge for the first time. These measurements provide information on the channel conductivity which may prove useful in facial sinus diagnostics. The results suggest that a clinical trial together with an ear-nose-throat (ENT) clinic should be carried out to investigate the clinical use of the new technique.

Persson, L.; Andersson, M.; Svensson, T.; Cassel-Engquist, M.; Svanberg, K.; Svanberg, S.

2007-07-01

184

External beam irradiation for squamous cell carcinoma of the maxillary sinus  

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Maxillary sinus cancers are usually locally advanced, and involve the structures around sinus, but the regional lymphatic spread is uncommon. Therefore, the local control of these cancers is important for their cure. We reviewed our experience of 55 patients with squamous cell carcinomas of the maxillary sinus, treated with radiation therapy, and looked for the role of radiation therapy in maxillary sinus cancers. Between November 1982 and October 1999, 55 patients with squamous cell carcinomas of the maxillary sinus underwent either radiation therapy only, or combined with surgery or with concurrent chemoradiation therapy. All patients were restaged according to the 1997 AJCC staging systems. The T classifications of the tumors of the parents were as follows: 1.8% (1/55) for T2, 81.8% (45/55) for T3 and 16.4% (9/55) for 14. Thirteen patients were diagnosed with lymph node involvement. With the surgical procedures, 12 patients were managed by biopsy only, 21 were resected by FESS (functional endoscopic sinus surgery) and 22 by partial/medial/total maxillectomies. The details of the treatments were as follows: 8 patients were treated with radiation therapy only, 17 with a combination of FESS and radiation therapy, 22 with a combination of a maxillectomy and radiation therapy, 4 with a combination of preoperative radiation therapy and surgery, and 4 with concurrent chemoradiation therapy. The mean follow-up for all patients was 25 months, ranging from 2.8 to 125 months. The 4-year local control and survival rates for all patients were 45.5 and 33.3%, respectively. The 4-year local control and survival rates, due to the extent of surgery, were as follows: 32.1, and 21.4 % for biopsy; 41.9, and 31.7% for FESS; and 56.8, and 52.7% for maxillectomy, respectively. Twenty-nine (52.7%) patients were not cured, and of these 29 patients, 23 (79.3%) patients had a local recurrence following treatment. This study has shown that the major failure sites following treatment to be the local regions, and that the completeness of surgery was important for improving the local control and survival of patients with squamous cell carcinoma of the maxillary sinus.

Kim, Tae Hyun; Yoon, Won Sub; Yang, Dae Sik; Kim, Chul Yong; Choi, Myung Sun [College of Medicine, Korea Univ., Seoul (Korea, Republic of)

2003-03-01

185

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

International Nuclear Information System (INIS)

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

186

Paranasal sinuses in children: size evaluation of maxillary, sphenoid, and frontal sinuses by magnetic resonance imaging and proposal of volume index percentile curves  

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Our objective was to establish the age-related 3D size of maxillary, sphenoid, and frontal sinuses. A total of 179 magnetic resonance imaging (MRI) of children under 17 years (76 females, 103 males) were included and sinuses were measured in the three axes. Maxillary sinuses measured at birth (mean{+-}standard deviation) 7.3{+-}2.7 mm length (or antero-posterior)/4.0{+-}0.9 mm height (or cranio-caudal)/2.7{+-}0.8 mm width (or transverse). At 16 years old, maxillary sinus measured 38.8{+-}3.5 mm/36.3{+-}6.2 mm/27.5{+-}4.2 mm. Sphenoid sinus pneumatization starts in the third year of life after conversion from red to fatty marrow with mean values of 5.8{+-}1.4 mm/8.0{+-}2.3 mm/5.8{+-}1.0 mm. Pneumatization progresses gradually to reach at 16 years 23.0{+-}4.5 mm/22.6{+-}5.8 mm/12.8{+-}3.1 mm. Frontal sinuses present a wide variation in size and most of the time are not valuable with routine head MRI techniques. They are not aerated before the age of 6 years. Frontal sinuses dimensions at 16 years were 12.8{+-}5.0 mm/21.9{+-}8.4 mm/24.5{+-}13.3 mm. A sinus volume index (SVI) of maxillary and sphenoid sinus was computed using a simplified ellipsoid volume formula, and a table with SVI according to age with percentile variations is proposed for easy clinical application. Percentile curves of maxillary and sphenoid sinuses are presented to provide a basis for objective determination of sinus size and volume during development. These data are applicable to other techniques such as conventional X-ray and CT scan. (orig.)

Barghouth, G.; Prior, J.O.; Lepori, D.; Duvoisin, B.; Schnyder, P.; Gudinchet, F. [Department of Radiology, CHUV University Hospital, Lausanne (Switzerland)

2002-06-01

187

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.

188

Case report. Metastatic renal cell carcinoma to the left maxillary sinus.  

Science.gov (United States)

Metastatic tumors in the paranasal sinuses are very rare. The origin of metastatic tumors in the paranasal sinuses is often renal cancer. Renal cell carcinomas are known for their tendency for early metastasis, and symptoms due to the metastatic lesion may be the only initial manifestation. In this paper, we deal with the case of a 35-year-old male patient who presented with a mass in the left maxillary region. The presence of a primary renal cell carcinoma was recognized only after surgical removal of the metastatic tumor. The presentation, diagnosis and treatment of this tumor are discussed with a review of the literature. PMID:25222245

He, Y-F; Chen, J; Xu, W-Q; Ji, C-S; Du, J-P; Luo, H-Q; Hu, B

2014-01-01

189

A case in optimization of intracavitary irradiation of maxillary sinus cancer  

International Nuclear Information System (INIS)

In our hospital, intracavitary irradiation with the high dose-rate remotely controlled afterloading system is utilized to treat the local recurrence of maxillary sinus cancer after external irradiation. Now, we employ CT views and a unit of personal computer to reproduce applicators set up to the same point in patient at each time and to decide source positions and irradiation time and the results was improved. (author)

190

A case of radiation retinopathy following radiation for maxillary sinus carcinoma  

International Nuclear Information System (INIS)

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

191

A case of radiation retinopathy following radiation for maxillary sinus carcinoma  

Energy Technology Data Exchange (ETDEWEB)

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

192

Methylene blue laser therapy for the treatment of chronic maxillary sinusitis  

Science.gov (United States)

The clinical results of photodynamic therapy of chronic maxillary sinusitis have been demonstrated. Obtained results show that the photodynamic therapy is effective in comparison with conservative methods of treatment of the disease. Diffusion of Methylene Blue in the mucous tissue has been studied in vitro and value of the diffusion coefficient of Methylene Blue in the tissue has been estimated at 20°C as (4.8+/-2.9)×10-7 cm2/sec.

Bashkatov, Alexey N.; Genina, Elina A.; Tuchin, Valery V.; Chikina, Elena E.; Knyazev, Anatoly B.; Mareev, Oleg V.

2005-08-01

193

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

International Nuclear Information System (INIS)

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.

194

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.

195

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.

2010-12-01

196

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

Directory of Open Access Journals (Sweden)

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

197

Maxillary sinus augmentation using prehardened calcium sulfate: a case report.  

Science.gov (United States)

Prehardened medical-grade calcium sulfate hemihydrate was placed as a grafting material for sinus floor elevation in the left posterior maxilla. After 8 months of healing, three titanium plasma-sprayed screw implants (Biolock) were placed. At the same time, a bone biopsy was harvested for histologic evaluation. The specimen was processed according to standard techniques for hard tissue histology. In both the grafted area and the previously existing area of sinus floor, the histology showed complete calcium sulfate resorption and the bone was primarily of lamellar structure. In the 5-month radiograph, a new trabecular design appeared from the periphery of the grafted area, and on the 8-month radiograph, the graft material was no longer detectable and the augmented area was filled by new tissue showing a trabecular design. This case report documented that medical-grade calcium sulfate hemihydrate, when used as a grafting material for augmentation of the sinus floor, may lead to proper osseointegration of dental implants. PMID:12449310

Guarnieri, Renzo; Bovi, Mauro

2002-10-01

198

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

199

Preoperative chemotherapy and radiation therapy for squamous cell carcinoma of the maxillary sinus  

International Nuclear Information System (INIS)

This study was undertaken to assess the prognostic factors for the management of squamous cell carcinoma (SCC) of the maxillary sinus, who received preoperative chemotherapy and radiation therapy (RT). We also elucidated the appropriate sequence of chemotherapy. A total of 124 patients (median age 62 years) with SCC of the maxillary sinus were analysed retrospectively. T3 or T4 disease was found in 93% of the patients. Thirty-nine patients received neoadjuvant chemotherapy (NA), 38 patients received concurrent chemoradiotherapy (CRT) and 47 patients received NA followed by CRT. The median dose of RT was 60 Gy. Maxillectomy was undertaken in 98 patients. The 5 year overall survival (OAS) and local control probability (LCP) were 56.6 and 73.7%, respectively. On univariate analysis, surgery (P<0.0001) and T classification (P<0.04) were significant prognostic factors for OAS and LCP. Histological grade and nodal status were also related to OAS. However, any chemotherapy sequence was not associated with the treatment outcome. On multivariate analysis, surgery (P<0.0005) and T classification (P<0.05) were identified as significant prognostic factors for LCP and OAS. This study suggests that both surgery and T stage are important prognostic factors for LCP and OAS in the management of SCC of the maxillary sinus. The appropriate sequence of chemotherapy remains to be elucidated in the future study. (author)

200

Radiological studies on carcinoma of the maxillary sinus with special emphasis on computed tomography  

International Nuclear Information System (INIS)

The purpose of this study was to compare the conventional X-ray images with computed tomography(CT) as the new radiological imaging on the diagnostic accuracy of carcinoma of the maxillary sinus. Forty five patients with carcinoma of the maxillary sinus were analysed by Waters' view, conventional tomography and CT. CT scans were performed in transverse(CT-T)and coronal(CT-C) directions by GE CT/T 8800 machine. The results obtained were as follows: 1. CT was superior to Waters' view and conventional tomography in this disease for evaluating the involvement of the maxillary walls and adjacent bony structures. 2. Thirty nine of 45 cases revealed the bony changes of postero-lateral wall in CT. The grading of this bony changes were as follows. a, completely disappeared pattern. b, granular pattern. c, expansive and disrupted pattern. d, discontinous pattern. e, expansive and erosive pattern. 3. CT was also useful for detection of the tumor extension to surrounding structures, especially on pterygoid muscles, orbit and brain. 4. The mean value of CT numbers on carcinoma in the antrum, sinusitis and lateral pterygoid muscles were 47.07 +- 10.70,30.20 +- 12.04 and 54.19 +- 11.17, respectively. The values among above three locations showed significant difference(P < 0.01). 5. Clinically, the frequency of the involvement of lateral pterygoid muscles in CT images was correlated to the duration of the illness. (author)

 
 
 
 
201

Application of CT in diagnosing carcinoma of the maxillary sinuses, 2  

International Nuclear Information System (INIS)

A phantom simulating the transverse section of the maxillary sinuses was constructed for experimentation with various CT scanners to study the following: (1) the occasional inability to image the very thin posterior-lateral walls which have no real bone defects, and (2) to verify whether or not the bony walls surrounding the maxillary sinuses are actually as thick as they appear on CT. The phantom was made of an acrylic cylinder containing three cavities simulating the maxillary sinuses and the nasal cavity and filled with water. The walls, made of thin aluminum and acrylic plates and placed between water and air, disappeared in some CT images. The thickness of the walls calculated from CT values was greater than the true thickness imaged by each CT scanner. The author stresses that in CT images, either experimentally or clinically, thin bony walls placed between water and air or fat tend to disappear, and that bony walls tend to appear thicker than their true thickness. (author)

202

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

Directory of Open Access Journals (Sweden)

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

203

Maxillary sinus augmentation using granular calcium sulfate (surgiplaster sinus): radiographic and histologic study at 2 years.  

Science.gov (United States)

The main goal of sinus augmentation is the formation of vital bone to allow tissue integration of endosseous implants to support prosthetic rehabilitation. The aim of the present investigation was to evaluate the radiographic and histologic results when granular medical-grade calcium sulfate hemihydrate was used as a grafting material in sinuses. Forty implants plus grafting material were placed in 10 patients, representing 15 sinuses, using a one-stage technique. Radiographs were taken prior to sinus augmentation, monthly until 6 months postoperatively, 9 and 12 months after implant placement, and annually thereafter. Bone biopsies were harvested from all patients for histologic and histomorphometric evaluation. PMID:16515099

Guarnieri, Renzo; Grassi, Roberto; Ripari, Maurizio; Pecora, Gabriele

2006-02-01

204

Maxillary sinus elevation for implant placement using calcium sulfate with and without DFDBA: six cases.  

Science.gov (United States)

Maxillary sinus lift is a surgical procedure performed to increase the volume of bone mass so that dental implants can be placed in the maxillary arch. Several materials have been suggested to be used for this procedure. The purpose of this study was to present the clinical and histologic results of using calcium sulfate with and without demineralized freeze-dried bone allograft (DFDBA) in sinus lift. Medical-grade sterile calcium sulfate was used alone or in combination with DFDBA in 6 patients undergoing sinus lift surgery for implant placement. Bone biopsies were taken at different times ranging from 6 to 24 months. All samples examined showed bone growth with some possible remnants of the grafted DFDBA. Implants were inserted either at the time of the lift or 6 months later. All of them were secure with primary stability. The cases reported indicate that calcium sulfate can be successfully used alone or in combination with DFDBA for sinus lift procedures and that possible residues of DFDBA can be found within newly generated bone. (Implant Dent 2004;13:270-277) PMID:15359165

Andreana, Sebastiano; Cornelini, Roberto; Edsberg, Laura E; Natiella, Joseph R

2004-09-01

205

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).

206

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

Directory of Open Access Journals (Sweden)

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

207

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

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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 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.

209

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.

210

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

211

Influence of postsurgical residual tumor volume on local control in radiotherapy for maxillary sinus cancer  

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The aim was to study the influence of postsurgical gross residual tumor volume on local control of maxillary sinus cancer treated with radiotherapy combined with debulking surgery. Forty-three patients who underwent combined surgery and radiotherapy (50-72 Gy, median 60 Gy) for squamous cell carcinoma of the maxillary sinus were reviewed. Gross residual tumor volume (GRTV) after surgery was measured on computed tomograms obtained during the radiotherapy planning. Patients were classified according to GRTV as follows: group AA, GRTV=0 (microscopic residual, n=2); group A, GRTV 3 (n=24); group B, 10-40 cm3 (n=9); and group C, ?40 cm3 (n=8). The relationship between local control and GRTV was analyzed using univariate and multivariate analysis. The 2-year local control rate for all patients was 62%. The differences in local control rates between groups AA, A and B were not significant (P<0.05), but the rate was significantly lower in group C than in the other groups (69% at 2 years vs 31% at 1 year, P<0.001). Multivariate analysis showed that GRTV (P=0.002) and histological differentiation (poorly differentiated histology was favorable, P=0.035) were independent prognostic factors and that intraarterial chemotherapy and administered total dose were not. Local control in groups A and B significantly depended on the total dose of radiotherapy, with 2-year control rates of patients receiving 50 Gy (n=6) and ?60 Gy (n=27) of 17% vs 79%, respectively (P<0.001). Our data suggest that adequate, not complete, debulking associated with a total radiotherapy dose of ?60 Gy can provide satisfactory local control for patients with squamous cell carcinoma of the maxillary sinus. (author)

212

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

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

Kolarevi? Daniela

2011-01-01

213

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

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Full Text Available 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 encontradas 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.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 the 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

2004-01-01

214

Three-dimensional dose distributions for radiotherapy of sinus maxillary tumours  

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Three-dimensional dose distributions for the radiation therapy of sinus maxillary tumours have been calculated. Irradiation techniques with 8 MV and 15 MV X-rays from a linear accelerator and 60Co gamma-irradiation are compared to each other. Using an anterior and a lateral field, the three-dimensional dose distribution of high energy photons shows that the radiation burden of the lens and the skin is significantly lower than with the use of 60Co irradiation. Sufficient dose coverage and sparing of the lens and the skin can be reached using the irradiation technique with 8 MV X-rays. (Auth.)

215

A radiologic study on the experimental lesions of the maxillary sinus  

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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.

216

Maxillary sinusitis - a comparative study of different imaging diagnosis methods; Sinusopatias maxilares - um estudo comparativo de diferentes metodos de diagnostico por imagem  

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We conducted prospective study comparing different methods (plain X-rays, computed tomography and ultrasonography mode-A) for the initial diagnosis of maxillary sinusitis. Twenty patients (40 maxillary sinuses) with a clinical history suggestive of sinusitis included in this study. The results were classified as abnormal or normal, using computed tomography as gold standard. The sensitivity for ultrasonography and plain X-rays was 84.6% and 69.2%, respectively. The specificity of both methods was 92.6%. This study suggests that ultrasonography can be used as a good follow-up method for patients with maxillary. sinusitis. (author)

Hueb, Marcelo Miguel; Borges, Fabiano de Almeida; Pulcinelli, Emilte; Souza, Wandir Ferreira; Borges, Luiz Marcondes [Faculdade de Medicina do Triangulo Mineiro (FMTM), Uberaba, MG (Brazil)

1999-12-01

217

Clinical results and therapeutic problems of combined therapy for maxillary sinus carcinoma  

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A retrospective study was carried out on 50 patients with maxillary sinus carcinoma, mostly stage IV, treated by a combined therapy with radiotherapy, chemotherapy and surgery during 1985-1996 at Hirosaki University Hospital. Thirty-one of the 50 patients were male and 19 were female, and the average age was 59.2 years old. The 5-year cause specific survival rate was 48.5%, the 5-year local control rate was 46.7% in all patients and the most patients were died of local recurrence. The patients without lymph node metastasis, treated with extended radical surgery and irradiated dose of 50 Gy showed a significantly better survival and local control than the other patients, although T-stage, histology and total administration of 5-FU were not significant. On the other hand, the patients with high biologically effective dose (BED) corrected for overall radiation treatment time (cBED) showed a significantly better local control than those with low cBED. Multivariate analysis demonstrated N-stage, radical surgery and cBED to be significant variables for survival and local control. It is concluded that radiotherapists should aim to improve local control without cosmetic and functional impairments and should, for that purpose, maintain high cBED for maxillary sinus carcinoma, i.e. no interruption of radiotherapy. (author)

218

[Treatment of partial maxillary adentia using the method of soft sinus lifting with one-stage implantation].  

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The results of examination and treatment of 83 patients with partial maxillary adentia are presented. 39 patients received a combined treatment including soft sinus lifting with a one-stage implantation according to a new method, while 44 were treated by soft sinus lifting with one-stage implantation according to a standard scheme. The effectiveness of the new method is shown. The number of complications decreased. PMID:16858321

Malakhova, M A

2006-01-01

219

[Cholesterol granuloma in paranasal sinus. An unfrequent pseudotumor in maxillary sinuses].  

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The cholesterol granuloma is well known in the middle ear, in the mastoid antrum and the air cells of temporal bone, mostly related to a chronic infectious process. There are other localizations such as the pleura, lung, pericardium, kidneys, arterial wall, nerves, brain, testicles, lymphatic ganglion and in the paranasals sinuses. Its localization in the mediofacial area is very unfrequent, having only been described 44 cases up to the year 2002. We present a 42 year-old patient, who required surgical treatment because of a increase in the volume of area her left facial of one month's old. It resulted to be secundary to an expansion of the maxilar sinus, such as seen on the computerized tomography carried out on the patient. The diagnosis was cholesterol granuloma, performed, through the anatomo-pathology study. We review the litterature on this subject and analyse the possible etiologic cause of this lesion, its clinic, diagnostic methodology and treatment. PMID:16001696

García de Hombre, Alina María; Pérez Peñate, Armando

2005-01-01

220

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

 
 
 
 
221

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

222

Secondary pneumatization of the maxillary sinus in callitrichid primates: insights from immunohistochemistry and bone cell distribution.  

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The paranasal sinuses remain elusive both in terms of function and in the proximate mechanism of their development. The present study sought to describe the maxillary sinuses (MSs) in three species of callitrichid primates at birth, a time when secondary pneumatization occurs rapidly in humans. The MSs were examined in serially sectioned and stained slides from the heads of two Callithrix jacchus, one Leontopithecus rosalia, and two Saguinus geoffroyi. Specimens were examined microscopically regarding the distribution of osteoclasts and osteoblasts along the osseous boundaries of the MS and other parts of the maxillary bone. Selected sections were immunohistochemically evaluated for the distribution of osteopontin (OPN), which facilitates osteoclast binding. Taken together, OPN immunoreactivity and bone cell distribution suggested trends of bone resorption/deposition that were consistent among species for the superior (roof) and inferior (floor) boundaries of the MS. Expansion at the roof and floor of the MS appeared to correspond to overall vertical midfacial growth in callitrichids. Much more variability was noted for the lateral (alveolar) and medial (nasal walls) of the MS. Unlike the other species, the nasal wall of Saguinus was static and mostly composed of inferior portions of the nasal capsule that were undergoing endochondral ossification. The variation seen in the alveolar walls may relate to the presence or absence of adjacent structures, although it was noted that adjacency of deciduous molars influenced medial drift of the alveolar wall in Saguinus but not Leontopithecus. The results of this study are largely consistent with the "structural" or "architectural" hypothesis of sinus formation with respect to vertical MS enlargement, and the variable cellular/OPN distribution found along the nasal and alveolar walls was evocative of Witmer's (J Vert Paleontol 1997;17:1-73) epithelial hypothesis in revealing that most expansion occurred in regions unopposed by adjacent structures. PMID:15983987

Smith, Timothy D; Rossie, James B; Cooper, Gregory M; Mooney, Mark P; Siegel, Michael I

2005-08-01

223

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

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

224

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

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

Habibollah Ghanba

2013-05-01

225

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

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

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

226

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

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

Josiane Faria de Aguiar Nigro

2006-04-01

227

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

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

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

2006-04-01

228

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 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.

229

Potential role of intensity-modulated radiotherapy in the treatment of tumors of the maxillary sinus  

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Purpose: To assess 3-dimensional conformal radiotherapy (3D-CRT) and intensity-modulated radiotherapy (IMRT) techniques to see whether doses to critical structures could be reduced while maintaining planning target volume (PTV) coverage in patients receiving conventional radiotherapy (RT) for carcinoma of the maxillary sinus because of the risk of radiation-induced complications, particularly visual loss. Methods and Materials: Six patients who had recently received conventional RT for carcinoma of the maxillary sinus were studied. Conventional RT, 3D-CRT, and step-and-shoot IMRT plans were prepared using the same 2-field arrangement. The effect of reducing the number of segments in the IMRT beams was investigated. Results: 3D-CRT and IMRT reduced the brain and ipsilateral parotid gland doses compared with the conventional plans. IMRT reduced doses to both optic nerves; for the contralateral optic nerve, 15-segment IMRT plans delivered an average maximal dose of 56.4 Gy (range 53.9-59.3) compared with 65.7 Gy (range 65.3-65.9) and 64.2 Gy (range 61.4-65.6) for conventional RT and 3D-CRT, respectively. IMRT also gave improved PTV homogeneity and improved coverage, with an average of 8.5% (range 7.0-11.7%) of the volume receiving <95% of the prescription dose (64 Gy) compared with 14.7% (range 14.1-15.9%) and 15.1% (range 14.4-16.1%) with conventional RT and 3D-CRT, respectively. Little difference was found between the 15 and 7-segment plans, but 5 segments resulted in segment plans, but 5 segments resulted in a reduced minimal PTV dose. Conclusions: IMRT offers significant advantages over conventional RT and 3D-CRT techniques for treatment of maxillary sinus tumors. Good results can be obtained from 7 segments per beam without compromising the PTV coverage. This number of segments is practical for implementation in a busy RT department

230

Is prophylactic neck irradiation indicated in patients with squamous cell carcinoma of the maxillary sinus?  

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Purpose: To determine the proportion of patients with squamous cell carcinoma of the maxillary sinus who will fail in regional nodes without elective neck treatment and to identify any prognostic factors that may influence neck control. Methods and Materials: From 1971-1995, 42 consecutive patients with squamous cell carcinoma of the maxillary sinus were seen at our department for curative treatment. There were 35 males and 7 females, with a median age at diagnosis of 63.5 years (range, 42-77 years). One tumor was classified as T1, 5 had T2, 15 had T3, and 21 had T4 disease. Four of 42 patients (9.5%) had cervical lymphadenopathy at initial presentation. Thirty-three patients had surgical resection and radiotherapy and nine had radiotherapy alone. None of the 38 patients with clinical NO necks received elective treatment to the cervical nodes. Results: Median overall survival was 30 months for all patients. Of the 38 patients with NO disease, 11 (28.9%) had neck recurrence. Of the 11 neck failures, 9 were ipsilateral only, 1 was contralateral, and 1 had bilateral neck recurrence. The most common site of neck failure was in the upper neck (submandibular and jugulodigastric lymph nodes). Four of the 38 patients (10.5%) had isolated neck failure. Only tumor stage was found to be significant for neck relapse, with T1 and T2 doing worse compared to T3 and T4 tumors. Location of tumor (infrastructure vs. suprastructure), involvement of the oral cavity/oropharynx, nasal cavi of the oral cavity/oropharynx, nasal cavity, nasopharynx or orbit did not predict for cervical node relapse. Local control at the primary site was likewise not prognostic. The median overall survival for patients who remained NO was 80 months and for those with initial cervical involvement or recurred in the neck without elective neck irradiation was 25 months (p = 0.05). Conclusion: Based on the 28.9% rate of neck recurrence and the poor median survival of patients who recur in the neck, we recommend prophylactic ipsilateral neck irradiation in patients with T1-T4 squamous cell carcinoma of the maxillary sinus

231

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

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

Beule, Achim G.

2010-01-01

232

Brown tumor of the maxillary sinus in a patient with primary hyperparathyroidism: a case report  

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Full Text Available Abstract Introduction Brown tumors are rare focal giant-cell lesions that arise as a direct result of the effect of parathyroid hormone on bone tissue in some patients with hyperparathyroidism. Brown tumors can affect the mandible, maxilla, clavicle, ribs, and pelvic bones. Therefore, diagnosis requires a systemic investigation for lesion differentiation. Case presentation We present a 42-year-old Greek woman, with a rare case of brown tumor of the maxillary sinus due to primary hyperparathyroidism. Primary hyperparathyroidism is caused by a solitary adenoma in 80% of cases and by glandular hyperplasia in 20%. Conclusions Differential diagnosis is important for the right treatment choice. It should exclude other giant cell lesions that affect the maxillae.

Proimos Efklidis

2009-07-01

233

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

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

Kishi, Hirohisa; Numata, Tsutomu; Yuza, Jun; Suzuki, Haruhiko; Konno, Akiyoshi [Chiba Univ. (Japan). School of Medicine; Miyamoto, Tadaaki

1995-03-01

234

Oncogenic osteomalacia in a case with a maxillary sinus mesenchymal tumor.  

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We herein describe the rare case of a 41-year-old woman with oncogenic osteomalacia due to a tumor in the maxillary sinus who presented with chronic general pain that had been gradually deteriorating. The patient's laboratory findings revealed hypophosphatemia due to renal phosphate wasting, an inappropriately low serum 1 alpha,25-dihydroxyvitamin D3 level for hypophosphatemia and an unusually high serum level of fibroblast growth factor 23 (FGF23). The causative tumor was surgically removed, resulting in a rapid resolution of the patient's biochemical abnormalities. An improvement of the abnormal multiple deposits on (99)Technetium-methylene diphosphonate bone scintigraphy and an increase in the bone metabolism markers suggested the development of bone remodeling within 49 days after the operation. The pathologic diagnosis of the tumor was a "phosphaturic mesenchymal tumor, mixed with a connective tissue variant." The expression of FGF23 was demonstrated in the tumor by the immunohistochemical techniques and a Western analysis. PMID:16969146

Koriyama, Nobuyuki; Nishimoto, Kengo; Kodama, Takuro; Nakazaki, Mitsuhiro; Kurono, Yuichi; Yoshida, Hiroki; Tei, Chuwa

2006-09-01

235

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

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

236

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

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

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

2002-06-01

237

Systematic modification and evaluation of a canine model for elevation of the floor of the maxillary sinus.  

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We have modified a canine model for raising the floor of the maxillary sinus by selecting a new surgical approach, and have evaluated the model with computed tomographic (CT) scans and endoscopy. Preoperative CT scans were taken of two beagle cadavers and four healthy, live beagles. The CT data were entered into Simplant software to select a candidate site for a surgical incision located between the first molar and the greater palatine foramen. All animals had the floor of the maxillary sinus raised from the candidate site. During the operation an endoscope was put outside the candidate site and into the maxillary sinus through a lateral puncture to record the condition of the Schneiderian membrane and the position of the candidate site. Postoperative CT scans were used to measure the position of the site, and the positions were compared. Eleven variables were measured on the coronal and sagittal sections. The two most important variables were the mean (SD) horizontal distance from the candidate site to the palatal alveolar ridge (8.1 (0.9)mm) and the residual bone height (2.0 (0.4)mm). There were no significant differences in the anteroposterior or internal-external position of the candidate site. Intraoperative endoscopic views showed the intact, white, and opaque membrane from the candidate site, and the movement of the membrane in the middle of the sinus floor from the lateral puncture. The candidate site is therefore an ideal surgical approach for raising the floor of the maxillary sinus, and the canine model is suitable for research in this area. PMID:25001117

Zheng, JiSi; Zhang, ShanYong; Lu, ErYi; Yang, Chi; Zhang, WenJie; Zhao, JingYang

2014-11-01

238

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

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

Benjamin L. Hodnett

2014-04-01

239

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

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

Benjamin L. Hodnett

2014-03-01

240

Human histologic evaluation of the use of the dental putty for bone formation in the maxillary sinus: case series.  

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A proof-of-principle study was conducted to assess the safety and efficacy of dental putty as an alternative sinus augmentation biomaterial. Six healthy patients requiring a total of 10 sinus augmentations received sinus augmentations. All patients volunteered and signed an informed consent based on the Helsinki declaration of 1975, as revised in 2000. The sinus augmentation was performed under local anesthesia with a mucoperiosteal flap elevated to expose the buccal wall of the maxillary sinus. The space was then filled with the dental putty in several increments, and the window was covered with an absorbable collagen membrane. Biopsies were harvested from all 10 treated sinuses using a 3-mm trephine bur at the time of implant placement at either 6 or at 9 months after sinus augmentation. All patients completed the study without complications, except for 1 patient who reported fistulas at 1 and 2 months after the surgery. Clinical reentry revealed that regenerated bone on the osteotomy site was soft and immature. The ground sections of the biopsied cores revealed minimum amounts of trabeculation surrounded by an abundant array of irregular-shaped residual alloplastic particles embedded in loose connective tissue. The present study's findings revealed inadequate bone formation, although the material appears to be bioinert as there is no elicitation of inflammatory response. PMID:21767203

Kim, David M; Nevins, Myron; Camelo, Marcelo; Nevins, Marc L; Schupbach, Peter; Rodrigues, Vinicius S; Fiorellini, Joseph P

2012-08-01

 
 
 
 
241

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

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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.

242

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

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Full Text Available 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 10 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.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.

Cesar Coronado

2011-12-01

243

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.

1375-13-01

244

Basaloid squamous cell carcinoma of the maxillary sinus: Report of two cases in association with cathepsin K expression  

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Basaloid squamous cell carcinoma (BSCC) is a rare variant of squamous cell carcinoma. The occurrence of BSCC in the nasal cavity is extremely rare. In the present study, two cases of BSCC occurring in the maxillary sinus are reported and the clinicopathological features and immunohistochemical characteristics of this rare tumor are discussed. Two patients, aged 85 (case 1) and 60 years (case 2), presented with nasal tumors and persistent nasal obstruction. In each case, the biopsy or resected...

Ishida, Mitsuaki; Okabe, Hidetoshi

2013-01-01

245

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

International Nuclear Information System (INIS)

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)

246

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. PMID:23696804

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

247

[Contribution of proliferating cell nuclear antigen to prognostic evaluation of carcinomas of the maxillary sinus].  

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Proliferating cell nuclear antigen (PCNA) is a nuclear protein, synthesized in the late G1 and S phases of the cell cycle. Therefore, it is considered to be closely related to cell proliferation. The contribution of PCNA to prognostic evaluation of the disease was investigated in 42 squamous cell carcinomas of the maxillary sinuses, retrospectively. Histological sections were prepared by formalin-fixation, paraffin-embedding and staining with monoclonal antibody to PCNA (DAKO, PC10) using the Avidin-biotin peroxidase complex method. The percentage of tumor cells with positive staining for PCNA ranged from 26.3 to 92.3% (average; 61.7%). In order to evaluate PCNA in terms of prognosis, five-year survival rates in the following two groups were compared. One included cases with a PCNA positive rate above the mean level and the other, those below the mean level. Five year survival rate was 30.4% in the group with a higher positive rate, but 42.1% in the group with the lower rate. However, the difference in survival rate between the two groups was not statistically significant. In addition, no correlations either between the rate of PCNA positivity and T-classification of tumors or between the degree of tumor cell differentiation and metastasis to neck lymph nodes were obtained. Further study is necessary to evaluate PCNA as a prognostic marker in human malignancy. PMID:1362772

Mikuni, H; Fukuda, S; Furuta, Y; Takasu, T; Nagahashi, T; Inuyama, Y

1992-12-01

248

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

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

Bastos, Alliny Souza; Spin-Neto, Rubens

2014-01-01

249

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

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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.

Carlos E., Zamora Linares.

250

Intravitreal bevacizumab for delayed radiation maculopathy and papillopathy after irradiation for maxillary sinus cancer  

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Full Text Available Miki Gondo1, Tsutomu Sakai1, Hiroshi Tsuneoka1, Chihiro Kanehira21Department of Ophthalmology, Jikei University School of Medicine, 2Division of Radiology, Jikei University School of Medicine, Tokyo, JapanBackground: The evaluation of intravitreal bevacizumab treatment for delayed radiation maculopathy and papillopathy after irradiation for maxillary sinus cancer.Case report: A patient with radiation maculopathy and papillopathy was treated with intravitreal bevacizumab (1.25 mg. Main outcome measures included fundus photography, angiography, and optical coherence tomography (OCT. Two weeks after intravitreal bevacizumab, visual acuity improved from 0.4 to 1.2. Fundus examination revealed decreased disc swelling, peripapillary hemorrhage, and macular edema. OCT demonstrated complete resolution of serous retinal detachment. At the 12-month follow-up, there was no exudation recurrence. No ocular or systemic side effects were observed.Conclusion: Intravitreal bevacizumab can be used to treat radiation maculopathy and papillopathy. Antivascular endothelial growth factor therapy may decrease tissue injury associated with radiation vasculopathy.Keywords: bevacizumab, radiation, maculopathy, papillopathy

Gondo M

2011-08-01

251

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

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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.

2006-09-01

252

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.

253

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

Science.gov (United States)

Autogenous bone grafting is the gold-standard technique for bone augmentation procedures prior to implant placement. If the amount of available intraoral donor bone is insufficient, it is necessary to harvest bone graft from extraoral sites, such as calvaria. Although this technique is well established, only a few case reports show the histological analysis of the grafted bone at the moment of implant placement. This article reports the case of a 48-year-old female patient with a critical atrophic maxillary ridge reconstructed using autogenous calvarial bone graft prior to implant placement, with clinical and histological evaluation. Bone was collected under general anesthesia from the parietal bone. The outer cortical originated the bone blocks, and the medullar bone layer between was collected to be used in the sinus augmentation procedure, together with 5 of the bone blocks triturated. Six months after bone augmentation, 8 implants were placed in the grafted area and 2 biopsies were retrieved (anterior and the posterior regions), allowing the visualization of the bone-remodeling process in the grafted areas. The patient had a stable recovery. Our results showed that although necrotic bone could still be seen in the outer layer of the grafted area, the interface between this necrotic bone and the already remodeled bone was consistent with biocompatibility. Two-year radiographic evaluation showed success of the grafts and the implants in supporting an esthetic and functionally stable prosthesis. Summarizing, calvarial bone grafts are a viable alternative for the attainment of adequate bone volume prior to implant placement. PMID:25106012

Bastos, Alliny Souza; Spin-Neto, Rubens; Conte-Neto, Nicolau; Galina, Keidy; Boeck-Neto, Rodolfo Jorge; Marcantonio, Cláudio; Marcantonio, Elcio; Marcantonio, Elcio

2014-08-01

254

Carcinoma of Maxillary Sinus. A case Presentation. Carcinoma de seno maxilar. Presentación de caso.  

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Full Text Available

Tumors of the nasosinuous tract developed in the air cavities usually present a considerable growing before the patient feel any symptom or sign. Great part of the symptomatology is given due to the invasion of the tumor to neighbour structures such as oral and nasal cavities and orbits. A case of a 62 year-old male patient is presented after being under a dental extraction. A bucco-sinuous communication was diagnosed. It did not respond to different treatments and after some moths an epidermoid carcinoma of the right maxillary sinus appeared. It is of great interest to let this case been known in order to outstand the importance of an early diagnosis to get a better vital prognosis in this kinds of lesions.

Los tumores del tracto nasosinusal al desarrollarse en cavidades aéreas, suelen presentar un considerable crecimiento antes de dar lugar a signos y síntomas. Gran parte de la sintomatología se debe a la invasión del tumor a estructuras vecinas, como son la órbita y la cavidad nasal y oral. Se presenta el caso de un paciente masculino, de 62 años de edad, al cual, tras haber sido sometido a una extracción dentaria, se le diagnosticó una comunicación bucosinusal, que no cedió a varias formas de tratamiento, lo que resultó varios meses después en un carcinoma epidermoide del seno maxilar derecho. El interés de dar a conocer este caso, radica en destacar la importancia de un diagnóstico precoz para conseguir mejorar el pronóstico vital en este tipo de afecciones.

Ángel Luis Cruz Leiva

2007-01-01

255

Assessment of airflow ventilation in human nasal cavity and maxillary sinus before and after targeted sinonasal surgery: a numerical case study.  

Science.gov (United States)

In this study, we evaluated the effects of targeted sinonasal surgery on nasal and maxillary sinus airflow patterns. A patient, who underwent right balloon sinuplasty and left uncinectomy for recurrent maxillary sinus barometric pressure, and concomitant septoplasty and bilateral inferior turbinate reduction for deviated nasal septum and inferior turbinate hypertrophy, was selected. Two 3D models representing both pre- and post-operative sinonasal morphology were constructed. The models were then used to evaluate nasal and maxillary sinus airflow patterns during respiration at ventilation rates of 7.5 L/min, 15 L/min and 30 L/min using computational fluid dynamics. The results showed that septoplasty and inferior turbinate reduction increased the nasal volume by 13.6%. The airflow patterns in the nasal cavity showed reasonably decreased resistance and slightly more even flow partitioning after the operation. Maxillary sinus ventilation significantly increased during inspiration in the left sinus after uncinectomy, and during expiration in right sinus after balloon sinuplasty. This study demonstrates computational fluid dynamics simulation is a tool in the investigation of outcomes after targeted, minimally invasive sinonasal surgery. PMID:24418355

Zhu, Jian Hua; Lim, Kian Meng; Thong, Kim Thye Mark; Wang, De Yun; Lee, Heow Pueh

2014-04-01

256

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 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

257

Spatial dose distribution of telecobalt and of high-energy x-ray irradiation of tumours of sinus maxillaris  

International Nuclear Information System (INIS)

The dose distributions for irradiation with telecobalt and 15 MeV x-ray,therapy, respectively, for the radiation treatment of the tumours localized in the sinus maxillaris are compared. In the case of ventral and lateral irradiation with two fixed fields the three-dimesional isodoses proved to be better for x-ray irradiation, moreover, the radiation burden of crystalline lens and of the skin was also lower. The isodose imaging was carried out by a CT controlled program, using a VAX11-780 computer and FORTMAN77 program language. (author)

258

Actinomycotic sinus of the buccal mucosa: a rare complication of cheek dimple creation.  

Science.gov (United States)

Even though actinomyces are common oral commensals, actinomycosis is an uncommon oral infection. Cheek dimple creation is a common surgical procedure with rare complications. Bacterial infection with abscess formation and foreign body reaction were reported. We report a rare example-and, to our knowledge, the first-of oral actinomycosis after cheek dimple creation. A young woman complained of a chronic tender nodule of the right buccal mucosa with pus discharge after surgery for cheek dimple creation. Histologic examination showed a sinus tract with actinomyces microorganisms. This complication can be mimicked by other oral or dental sinus-forming lesions, can be chronic and insidious, and could therefore clinically be missed or mistreated. This might delay the diagnosis and cause scarring and disfigurement. The treatment of choice is early recognition and complete surgical excision to avoid irreversible complications and prevent recurrence. Awareness of this potential complication by aesthetic surgeons, oral clinicians, and dentists is important. Patients' adherence to preventive measures and plastic surgeons' application of inclusion criteria and contraindications, as well as their choice of best technique per patient, should help minimize such a problem in a simple and safe aesthetic procedure. LEVEL OF EVIDENCE 5: PMID:24973339

AbdullGaffar, Badr; Ghandoor, Khalid; Ahli, Qassim

2014-11-01

259

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

260

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.

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

 
 
 
 
261

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

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

Paulo de Lima Navarro

2013-02-01

262

Sinus Surgery  

Medline Plus

Full Text Available ... and dust. The sinuses are lined by special cells called mucosa that secrete ‘mucus,’ ... nose. If the mucosa that lines the turbinates swells, the sinus openings could become ...

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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

264

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

265

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 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.

266

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)

267

Quantitative skeletal scintiscanning of the skull with 99mTc-Sn-pyrophosphate in patients with maxillary sinusitis as compared to healthy persons  

International Nuclear Information System (INIS)

In 19 healthy persons the normal storage pattern of the skull was quantitatively established with the aid of sup(99n)Tc-Sn-pyrophospate. Moreover 48 patients with chronic maxillary sinusitis were tested to find out whether and in which percentage pathological storage occurred. (orig./MG)

268

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

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

Stavropoulos, Andreas; Becker, Jürgen

2011-01-01

269

Sinus lifting before Le Fort I maxillary osteotomy: a suitable method for oral rehabilitation of edentulous patients with skelettal class-III conditions: review of the literature and report of a case  

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Full Text Available Abstract Background Functional rehabilitation of patients afflicted with severe mandibular and maxillary alveolar atrophy might be challenging especially in malformed patients. Methods Treatment planning using sinus lifting and implant placement before Le Fort I maxillary osteotomy in a patient with severe mandibular and posterior maxillary alveolar atrophy and skelettal class-III conditions due to cleft palate are described. Results A full functional and esthetic rehabilitation of the patient was achieved by a stepwise surgical approach performed through sinus lifting as the primary approach followed by implant placement and subsequent Le Fort I maxillary osteotomy to correct the maxillo-mandibular relation. Conclusion Stabilisation of the maxillary complex by a sinus lifting procedure in combination with computer aided implant placement as preorthodontic planning procedure before Le Fort I maxillary osteotomy seems to be suitable in order to allow ideal oral rehabilitation especially in malformed patients.

Meyer Ulrich

2007-01-01

270

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

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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.

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

2003-09-01

271

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  

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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.

272

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

273

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)rs may improve disease control. (author)

274

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

Scientific Electronic Library Online (English)

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

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

275

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

Scientific Electronic Library Online (English)

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

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

2006-06-01

276

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

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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.

Eggesboe, H.B.; Stiris, M. [Aker Hospital, Oslo (Norway). Dept. of Radiology; Doelvik, S. [Univ. of Oslo (Norway). Dept. of Otorhinolaryngology; Soevik, S. [Univ. of Oslo (Norway). Inst. of Physiology; Storroesten, O.T. [Ullevaal Hospital, Oslo (Norway). Dept. of Paediatrics; Kolmannskog, F. [Sentrum Roentgeninstitutt, Oslo (Norway)

2001-03-01

277

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 areas that can be eradicated with FESS

278

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

DEFF Research Database (Denmark)

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

Stavropoulos, Andreas; Sima, Catalin

2012-01-01

279

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)

280

Granuloma reparativo de células gigantes dos seios etmoidal e maxilar Giant cell reparative granuloma of the ethmoid and maxillary sinuses  

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Full Text Available O granuloma reparativo de células gigantes é um tumor ósseo não-neoplásico incomum que representa menos que 7% dos tumores mandibulares, sua localização mais freqüente. Porém, já foi descrito em seios paranasais, ossos temporais e órbita. O presente trabalho descreve um paciente com granuloma reparativo de células gigantes em seios maxilar e etmoidal, comprometendo também, em menor extensão, os seios esfenoidal e frontal, e um outro paciente com acometimento circunscrito ao seio maxilar. Clinicamente, apresentam-se com proptose acentuada e macromala unilaterais, respectivamente. Os achados clínicos, tomográficos, histopatológicos e terapêuticos são descritos, ao lado de uma revisão da literatura com ênfase no diagnóstico diferencial, sobretudo com o tumor de células gigantes.The giant cell reparative granuloma is a non-neoplasic and uncommon bone tumor that represents fewer than 7% of the mandibular tumors, its most frequent site. However, this tumor has been described in paranasal sinuses, temporal bones and orbit. The present article reports a patient with a maxillo-ethmoidal giant cell reparative granuloma affecting esphenoidal and frontal sinuses, clinically with unilateral severe proptosis and facial deformity, and other patient with maxillary disease associated to macromala. The clinical, tomographic, histophatological and therapeutical findings are described. In addition, a literature review with emphasis in differential diagnosis is offered, in particular with bone giant cell tumor.

Fernando P. Gaspar Sobrinho

2004-08-01

 
 
 
 
281

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

282

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  

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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.

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

283

Sinusitis  

Science.gov (United States)

Sinusitis is inflammation of the sinuses. It occurs as the result of an infection from a virus, bacteria, or fungus. ... The sinuses are air-filled spaces in the skull. They are located behind the forehead, nasal bones, cheeks, and ...

284

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

285

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

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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

286

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

287

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

288

Histological and clinical survey of polylactic-polyglycolic acid and dextrane copolymer in maxillary sinus lift: a pilot in vivo study.  

Science.gov (United States)

Of various proposed alternatives to autogenous bone, a synthetic, degradable copolymer of PLA-GLA and dextrane seems to be a promising biomaterial for maxillary sinus lift. Consecutive partially edentulous patients showing severe monolateral posterior maxillary atrophy were treated via sinus lift using PLA-GLA-dextrane copolymer as the sole filler. Delayed implant positioning was performed and cores of regenerated tissues and native bone controls were retrieved and evaluated by light and electron microscopy, histomorphometry, microhardness and qualitative X-ray analysis. Seven sinuses in 7 patients were augmented with PLA-GLA-dextrane copolymer. Six to nine months after the copolymer 'graft', 17 bone cores were retrieved: all histological sections contained newly synthesized, mineralized material and new bone in various stages of development. Histomorphometry revealed average Trabecular Bone Volume (TBV) values ranging from 51% (6 months) to 77% (9 months). Backscattered scanning electron microscopy (BSE) in experimental and control samples confirmed histology findings. Microhardness values suggested newly formed bone at nine months was not as hard as native bone. Ca and P content was similar in 9-month regenerated and native bone. Seventeen implants were inserted in the second stage of surgery: resulting Implant Success (SR) and Cumulative Success (CSR) up to 3 years were 100% following Albrektssons criteria. Sinus lift augmentation using PLA-GLA-dextrane copolymer as the sole filler resulted in uneventful surgeries. New bone formation was evident histologically and its maturation was still in progress after 9 months. Successful, staged implant positioning was achieved in regenerated tissue. PMID:18831937

Martuscelli, R; Maltarello, M C; Maraldi, N M; Sbordone, C; Sbordone, L

2008-01-01

289

Sinus Surgery  

Medline Plus

Full Text Available ... opening. Turbinates are bones that hang from the walls of the nose. If the mucosa that lines ... hole that the sinuses drain through. Sometimes the walls between the sinuses are removed to make the ...

290

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

International Nuclear Information System (INIS)

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

291

Alternativas a la elevación de seno maxilar: implantes cortos Alternatives to maxillary sinus elevation: short implants  

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Full Text Available La mala calidad del hueso, reabsorciones extremas y la presencia de la cavidad del seno maxilar constituían obstáculos insalvables para la rehabilitación implanto-soportada en el sector posterior del maxilar atrófico. La elevación de seno es probablemente la primera opción de tratamiento en el paciente tributario de rehabilitación con implantes en ese sector. El uso de implantes cortos (menos de 10 mm se ha asociado tradicionalmente con unas tasas de supervivencia menores que la de los implantes largos. No obstante la aparición de nuevas superficies y diseños indican que este tipo de implantes puede soportar de forma fiable restauraciones dentales. Presentamos la técnica de instalación de implantes de superficie porosa sinterizada, asi como una revisión actualizada sobre el comportamiento de los implantes cortos.Poor bone quality, extreme bony resorption and a pneumatized mqxillary sinus are a severe Challenger for reconstruction of the atrophic edentuous posterior maxilla. Sinus lift is probably the gold standard for Management of that area. Short implants (<10mm have traditionally been associated with lower survival rates. The introduction of new surfaces and designs indicate that this type of implants can adequately support dental restorations. We present the technique of installation of sinterised porous dental implants together with an update on the behaviour of short implants.

J. González Lagunas

2008-12-01

292

Sinus Surgery  

Medline Plus

Full Text Available ... of the openings of the sinuses can cause inflammation of the mucosa and can block the drainage ... polyp.’ Polyps can result from repeated infections and inflammation of the mucosa. The bony structure separating the ...

293

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.

294

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.

2012-04-01

295

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.

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

296

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.

297

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.

298

Five-year outcome of bone remodelling around implants in the maxillary sinus: assessment of differences between implants placed in autogenous inlay bone blocks and in ungrafted maxilla.  

Science.gov (United States)

The placement of implants in the posterior maxillary area is considered a reliable procedure, offering recognized rehabilitative advantages. The aim of this study was to evaluate the performance of dental implants placed in the sinus floor augmented with a block autograft by comparing the outcomes over 5 years with those of dental implants positioned in non-augmented bone. This retrospective cohort study included 16 patients who had undergone prosthetic rehabilitation supported by dental implants between 2000 and 2006. One implant per patient was included and assigned to one of two predictor groups: grafted versus ungrafted maxillary sinus. Changes in marginal bone level (MBL) and apical bone level (ABL) over time, at 1, 3, and 5 years, were the primary outcome variables. Appropriate pair-wise comparison tests were performed. No significant differences were seen with regard to ABLs and among times between the grafted group (nine implants) and the ungrafted group (seven implants). Significant marginal bone resorption was found over time, primarily at the buccal aspect, in both study groups. The bone surrounding the apex of dental implants appeared stable after sinus augmentation in the grafted area. The behaviour of the two groups with regard to loss of MBLs over time was very similar. PMID:24774722

Martuscelli, R; Toti, P; Sbordone, L; Guidetti, F; Ramaglia, L; Sbordone, C

2014-09-01

299

Superselective intra-arterial chemotherapy (SIC) by using the Seldinger technique as the treatment strategy for maxillary sinus carcinoma  

International Nuclear Information System (INIS)

We have been applying superselective intra-arterial chemotherapy (SIC) by using the Seldinger technique as the treatment strategy for maxillary sinus carcinoma since 1998 in combination with radiotherapy and surgery. SIC allows delivery of high-dose anticancer drugs to the target tumor at high concentrations through its feeding vessel with few adverse effects by neutralizing and limiting the toxic effects of cisplatin (CDDP) within an acceptable range. We studied the effect of primary treatment and adverse events in 40 patients with squamous cell carcinoma of the maxillary sinus who underwent high-dose SIC combined with radiotherapy in our department between 1998 and 2008. The patients were 30 men and 10 women aged 43 to 75 years (median, 61 years). All carcinomas were advanced and graded as T3 in 17, T4 in 23, and N+ in 8. Some of the carcinomas reached the skull base or extended deep into the orbit. SIC was performed using the Seldinger technique from the femoral artery. Total CDDP dose was 200-300 mg/m2 (mean, 210 mg/m2). All vessels used for the treatment were those branching from the external carotid arteries; those from internal carotid arteries were not used for intra-arterial infusion. Following arterial infusion chemotherapy, systemic administration of 800 mg 5-fluorouracil (FU) was started on Day 2. Simultaneous radiotherapy was started on Day 2 at a dose of 2 Gy with a goal of increasing up to 60 Gy. Patients enrolled in this treatment arm received two courses of chemotherapy at 1- to 2-week intervals, along with a total dose of 60 Gy of radiotherapy from 1998 to 2007. Since 2008, two courses of SIC with the Seldinger technique, based on the results of postoperative pathological examination, and curative radiation at 60 Gy became the preferred basic treatment strategy irrespective of tumor size, and evaluation of treatment response at the level of 40 Gy was abandoned. For residual or recurrent carcinoma, we took a ''wait and see'' approach and conducted salvage operation as additional treatment. Adverse events of chemotherapy and SIC combined with radiotherapy were completed as scheduled. The treatment response was evaluated at 1 month based on macroscopic, imaging, and histopathological findings. In total, the Seldinger technique was performed 73 times in 40 patients. The mean number of feeding vessels used for treatment was 2.3. Follow-up of adverse events revealed Grade 3 or higher stomatitis in 45% of patients; although it often led to anorexia or dysphagia, it was reversible in all cases. Five patients needed granulocyte-colony stimulating factor (G-CSF) administration for leukocytopenia. Grade 3 or higher renal dysfunction related to CDDP administration was observed in 6 patients. Three patients underwent hemodialysis for Grade 4 renal dysfunction and all could discontinue hemodialysis. All adverse events were reversible and non-serious except for 3 patients with suspected symptoms of transient cerebral ischemia. Primary treatment response was complete response (CR) in 50.0% and partial response (PR) in 25.0% at 40 Gy, with a response rate of 75.0%. Thirty patients received surgery after intra-arterial chemotherapy. Of these, 10 patients rated as CR before surgery were all pathological CR. Of 10 patients who achieved PR in their primary treatment response after SIC combined with radiotherapy, 5 patients were pathological CR in the postoperative pathological evaluation. The final CR rate was 62.5%. These results suggest that adverse events of this therapy are relatively minor and within an acceptable range. In terms of local control, SIC may avoid invasive surgical procedures. (author)

300

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

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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

 
 
 
 
301

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.

302

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.

303

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

304

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.

2014-08-01

305

Studies on serum protein fractions of patients with maxillary sinus cancer undergoing a combination of radiotherapy and chemotherapy. 2. Relationship between changes in serum protein fractions and prognosis  

International Nuclear Information System (INIS)

We examined the correlations between changes in serum protein fractions and the prognosis of the patients. The levels of 21 protein components of the sera of 36 patients with maxillary sinus cancer were determined by a single radial immunodiffusion method before and after radiation therapy. The patients with maxillary sinus cancer were treated with combined intra-arterial infusion of bleomycin and external irradiation of 60 Co gamma-rays, and were concurrently treated with 5-fluorouracil at 200 mg/day p.o. The levels of the same protein components were also measured in 34 normal adult as a control. All patients were observed 5 years and 12 years after radiation therapy. In patients who had survived at least 5 years after radiation therapy, the Alb, Tf, Hx, IgG and IgM levels measured before radiation therapy were elevated significantly compared with those who had died within 5 years. In those who had survived at least 5 years, the Alb, Tf, Hx, IgG, IgM, IgA and I?I levels measured after radiation therapy were elevated significantly compared with those who had died within 5 years, and AT III was reduced. In cases of maxillary sinus cancer following a period of 5 to 12 years after radiation therapy, multiple regression analysis was used to determine whether increased concentrations of serum protein fractions were associated with good prognosis for the original disease. ?2HS, IgM, HX, ?1AT and ?1X before radiation therapy were positively correlated with survival, whereas AT III, Pmg, Cp, IgA, and ?1AG showed negative correlations. After radiation therapy, Pmg, Hx, Cp, Cl inh and Fib were found to be positive factors of survival rate, whereas ?2M, ?2PI, I?I, IgA, ?1AG and C3 were negative factors. (author). 54 refs

306

Sinusitis  

Science.gov (United States)

... have dry coughs and find it hard to sleep. Others have upset stomachs or feel nauseous. Although many of these symptoms are similar to those you can get from viral sinusitis or allergic rhinitis (inflammation of the nose and sinuses due to allergy), ...

307

Sinusitis  

Science.gov (United States)

... of links for more information about the sinusitis. Javascript Error Your browser JavaScript is turned off causing certain features of the ... incorrectly. Please visit your browser settings and turn JavaScript on. Read more information on enabling JavaScript. Sinusitis ...

308

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

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

1168-11-01

309

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

Directory of Open Access Journals (Sweden)

Full Text Available La pérdida de dientes superiores causa reabsorción del proceso alveolar y la neumatización del seno maxilar. La implantología oral ha permitido solucionar la perdida de dientes, sin embargo, cuando existe neumatización del seno maxilar, la disponibilidad ósea se ve disminuida, dificultando el procedimiento 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.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 surgical 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 edentulouswere selected that met certain inclusion criteria. The second part of the study was, to divide the sinus floor topographically into three regions: anterior to the zygomatic alveolar crest, in relation to it, and posterior to the crest. The observation of the septa was performed by a single examiner, assisted by a USB device with 4 high-luminance LEDs. Of the 51 maxillary analyzed obtained: 74.5% had at least one intrasinusal septum, 25.4% showed no visible septa. The maxilary bones that had a single septum corresponded to 33.3% of the sample, 19.6% of the sample had only two septa, 15.7% had three septa, while the maxillary bones that had more than three intrasinusal septa corresponded only to 5.9%. Of all septa found (75 septa 42% was observed in the anterior region, 21% in the region of the zygomatic crest and 37% in the posteri

Arnoldo Hernández Caldera

2011-12-01

310

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

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

311

Evaluation of paranasal sinus mucosa in coal worker's pneumoconiosis - A computed tomographic study  

Energy Technology Data Exchange (ETDEWEB)

Objective: To evaluate by computed tomographic scanning the paranasal mucosal changes of coal workers with and without pneumoconiosis. Methods: Examination of images and scores from paranasal computed tomographic scans. The study participants were 26 coal workers with pneumoconiosis, 29 coal workers without pneumoconiosis, and 20 controls. All were men. The extent and patterns of inflamatory paranasal sinus disease were evaluated on computed, tomographic scans by 2 radiologists using the terminology and definitions of Newman and associates. Results: Interobserver agreement for the presence of abnormalities was from good to excellent (K, 0.63-0.89). The mucosal scores of individuals and groups were higher for coal workers than for control subjects. Both scores were significantly higher in the pneumoconiosis group than in the 2 other groups. Conclusions: This study shows that paranasal sinuses were affected more severely in coal workers than in control subjects. In coal workers with pneumoconiosis, the affection was most severe. The relationship between coal dust exposure and paranasal mucosal changes needs further study.

Ozdemir, H.; Altin, R.; Mahmutyazicioglu, K.; Kart, L.; Uzun, L.; Savranlar, A.; Davcanci, H.; Gundogdu, S. [Zonguldak Karaelmas University, Zonguldak (Turkey). School of Medicine

2004-09-01

312

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

Digital Repository Infrastructure Vision for European Research (DRIVER)

Few studies has been done using guided bone regeneration in maxillary sinus defects. AIM: To assess the bone repair process in surgical defects on the alveolar wall of the monkey maxillary sinus, which communicates with the sinus cavity, by using collagen membranes: Gen-derm - Genius Baumer, Pro-tape - Proline and autologous temporal fascia. MATERIALS AND METHODS: In this prospective and experimental study, orosinusal communications were performed in four tufted capuchin monkeys (Cebus apella...

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

2011-01-01

313

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.

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

314

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.

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

2013-08-01

315

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.

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

316

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  

Directory of Open Access Journals (Sweden)

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

317

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)

318

Maxillary sinus floor elevation using a tissue-engineered bone with calcium-magnesium phosphate cement and bone marrow stromal cells in rabbits.  

Science.gov (United States)

The objective of this study was to assess the effects of maxillary sinus floor elevation with a tissue-engineered bone constructed with bone marrow stromal cells (bMSCs) and calcium-magnesium phosphate cement (CMPC) material. The calcium (Ca), magnesium (Mg), and phosphorus (P) ions released from calcium phosphate cement (CPC), magnesium phosphate cement (MPC), and CMPC were detected by inductively coupled plasma atomic emission spectroscopy (ICP-AES), and the proliferation and osteogenic differentiation of bMSCs seeded on CPC, MPC, and CMPC or cultured in CPC, MPC, and CMPC extracts were measured by MTT analysis, alkaline phosphatase (ALP) activity assay, alizarin red mineralization assay, and real-time PCR analysis of the osteogenic genes ALP and osteocalcin (OCN). Finally, bMSCs were combined with CPC, MPC, and CMPC and used for maxillary sinus floor elevation in rabbits, while CPC, MPC, or CMPC without cells served as control groups. The new bone formation in each group was detected by histological finding and fluorochrome labeling at weeks 2 and 8 after surgical operation. It was observed that the Ca ion concentrations of the CMPC and CPC scaffolds was significantly higher than that of the MPC scaffold, while the Mg ions concentration of CMPC and MPC was significantly higher than that of CPC. The bMSCs seeded on CMPC and MPC or cultured in their extracts proliferated more quickly than the cells seeded on CPC or cultured in its extract, respectively. The osteogenic differentiation of bMSCs seeded on CMPC and CPC or cultured in the corresponding extracts was significantly enhanced compared to that of bMSCs seeded on MPC or cultured in its extract; however, there was no significant difference between CMPC and CPC. As for maxillary sinus floor elevation in vivo, CMPC could promote more new bone formation and mineralization compared to CPC and MPC, while the addition of bMSCs could further enhance its new bone formation ability significantly. Our data suggest that CMPC possesses moderate biodegradability and excellent osteoconductivity, which may be attributed to its Ca and Mg ion composition, and the tissue-engineered bone constructed of CMPC and bMSCs might be a potential alterative graft for maxillofacial bone regeneration. PMID:22066969

Zeng, Deliang; Xia, Lunguo; Zhang, Wenjie; Huang, Hui; Wei, Bin; Huang, Qingfeng; Wei, Jie; Liu, Changsheng; Jiang, Xinquan

2012-04-01

319

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  

Directory of Open Access Journals (Sweden)

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

320

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

 
 
 
 
321

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.

2009-08-01

322

Sinus Surgery  

Medline Plus

Full Text Available ... throat where it is swallowed. Symptoms and their Causes Infections, allergies, or obstruction of the openings of the sinuses can cause inflammation of the mucosa and can block the ...

323

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

324

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

Scientific Electronic Library Online (English)

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

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

2009-08-01

325

Silent sinus syndrome  

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Full Text Available Silent sinus syndrome(SSS is a rare clinical condition. In this report, we are presenting a 58 years old woman with chief complain of right global pain. All ophthalmic examinations were normal. In CT-scan of para nasal sinuses right maxillary sinus volume was decreased but she had no sinonasal symptoms.

M Sonbolestan

2005-03-01

326

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

327

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

328

Comparison of CT and MRI features in sinusitis  

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Objective: To correlate the features of inflammatory changes in the paranasal sinuses on magnetic resonance imaging (MRI) with computed tomography (CT). Methods and patients: One hundred and fourteen patients with histologically proven nasopharyngeal carcinoma (NPC) were staged with both CT and MRI. All CT and MRI images of patients with mucosal thickening but no tumour involvement of the sinuses were retrospectively analysed. Results: There were inflammatory changes in 36 maxillary, 21 sphenoid and 16 ethmoid sinuses. These changes include mucosal thickening, retention cysts, retained secretions, inspissated secretions and dystrophic calcification. MRI is superior to CT in separating thickened mucosa, retained secretions and retentions cysts. Conclusion: It is important to appreciate CT changes of sinusitis and the corresponding spectrum of MRI features. (Copyright (c) 1998 Elsevier Science B.V., Amsterdam. All rights reserved.)

Chong, V.F.H.; Fan, Y.F. [Department of Diagnostic Radiology, Singapore General Hospital, Outram Road, Singapore 169608 (Singapore)

1998-11-01

329

Two Cases of Small Cell Cancer of the Maxillary Sinus Treated with Cisplatin plus Irinotecan and Radiotherapy  

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Background. Small cell carcinoma (SmCC) in the nasal cavity and paranasal sinuses is very rare, and definitive therapies have not yet been established. Methods. Chemoradiotherapy comprised 60?Gy of external radiation, with the administration of irinotecan intravenously at 60?mg/m2 on days 1, 8, and 15 and cisplatin at 60?mg/m2 on day 1. Results. Case 1 involved a 66-year-old woman with stage III cancer. Adverse events included decreased white blood cells, anemia, and oral mucositis, all...

Kiyoaki Tsukahara; Kazuhiro Nakamura; Ray Motohashi; Hiroki Sato

2013-01-01

330

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

331

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

332

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  

Directory of Open Access Journals (Sweden)

Full Text Available A rinossinusite é uma das principais causas de febre em pacientes críticos e deve ser sistematicamente pesquisada. OBJETIVO: Avaliar o impacto da punção do seio maxilar à beira leito, no diagnóstico e no tratamento dos pacientes com rinossinusite infecciosa internados em Unidade de Terapia Intensiva de um hospital universitário de alta complexidade. MATERIAIS E MÉTODOS: Estudo retrospectivo que avaliou os pacientes em ventilação mecânica com febre de origem indeterminada e sinais tomográficos de rinossinusite submetidos à punção do seio maxilar pelo meato inferior. RESULTADOS: A amostra total do estudo consistiu de 27 pacientes (70,3% do sexo masculino com média de idade 45,3 anos. Os diagnósticos de admissão mais frequentes na Unidade de Terapia Intensiva foram Trauma Crânio Encefálico e Acidente Vascular Cerebral. No exame tomográfico, os seios paranasais mais acometidos foram o maxilar, em 85,2%, e esfenoidal, em 74,1%. A secreção purulenta foi visualizada no meato médio em 30,7% das fossas nasais. Os microrganismos mais frequentes nos aspirados dos seios foram Pseudomonas aeruginosa e Acinetobacter baumannii. CONCLUSÃO: A punção do seio maxilar à beira leito demonstrou-se uma importante ferramenta diagnóstica e terapêutica nos pacientes de UTI com rinossinusite hospitalar, submetidos à ventilação mecânica invasiva.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 rhinosinusitis 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 < 0.001. The most commonly found organisms in sinus aspirates were Pseudomonas aeruginosa and Acinetobacter baumannii. CONCLUSION: Maxillary sinus puncture performed at the bedside of the patients is an important diagnostic and theraupetic tool for critically ill patients.

José Arruda Mendes Neto

2012-08-01

333

Radiography and ultrasonography in paranasal sinusitis  

International Nuclear Information System (INIS)

In order to analyze whether ultrasonography with a reasonable degree of confidence can replace radiography in the diagnosis of sinusitis, 138 patients with clinical signs of sinusitis were examined with both methods. It was found that maxillary sinus fluid was recognized ultrasonographically with a confidence that increased with the amount of fluid, judged from radiographic examinations. In a sub-group of 45 cases, fluid confirmed by maxillary sinus puncture was detected by ultrasonography in 34/45 sinuses (78%) and by radiology in 38/45 sinuses (84%). In patients with radiographically normal maxillary sinuses, the correlation to ultrasound was good. However, mucosal swelling and polyps or cysts observed at radiography were poorly demonstrated by ultrasonography. In addition, the ultrasound method was not reliable for frontal sinus diagnosis. It was concluded that ultrasonography can be recommended in maxillary sinusitis for follow-up of treatment and as a screening method before sinus radiography. (orig.)

334

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

335

A child with silent sinus syndrome and spontaneous improvement after sinus surgery.  

Science.gov (United States)

Silent sinus syndrome is characterized by an asymptomatic hypoplastic maxillary sinus with progressive enophthalmos and hypoglobus. This is a disease rarely affecting children with the majority of reported cases involving adult patients. Treatment is primarily surgical with endoscopic sinus surgery to restore aeration of the sinus along with orbital reconstruction to restore facial symmetry. In this report, we describe a 7 year old child with facial asymmetry and no sinonasal symptoms. CT showed an opacified hypoplastic right maxillary sinus. One year after endoscopic sinus surgery, there was spontaneous improvement of facial asymmetry and relative maxillary sinus size. PMID:25218341

Chang, David T; Truong, Mai Thy

2014-11-01

336

CT of postoperative maxillary cyst  

International Nuclear Information System (INIS)

We evaluated the CT findings of postoperative maxillary cyst in 13 cases (14 sides) and discussed tsi diagnostic efficacy. CT showed the postoperative changes including bony defect in the anterior wall of maxillary sinus, counter opening and compartmentalization of sinus space. The characteristic CT appearance was a expansive cystic lesion with pressure erosion of bony septum and wall of the sinus. Fat layer arround the cyst was not obliterated. Comparing CT and conventional X-ray method, we conclude that CT is the procedure of choice to make differential diagnosis between the cyst and malignant lesion and defect the small cyst which is located in peripheral region. (author)

337

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

338

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

339

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.

340

Sinus Surgery  

Medline Plus

Full Text Available ... called mucosa that secrete ‘mucus,’ which helps trap dirt from the air we breathe. The dirt is then expelled to the outside using small ... taken to see the sinuses inside the head. Blood and allergy tests may also be done to ...

 
 
 
 
341

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

Scientific Electronic Library Online (English)

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.

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

2007-06-01

342

Bilateral silent sinus syndrome.  

Science.gov (United States)

Silent sinus syndrome is a rare clinical entity associated with progressive enophthalmos, collapse of the maxillary sinus, and hypoglobus. We report a case of bilateral silent sinus syndrome in a 29-year-old man. Representative radiographic and intraoperative images are presented. The purpose of this article is to illustrate a new presentation of the disease and to review the current diagnostic and treatment modalities. PMID:23288826

Suh, Jeffrey D; Ramakrishnan, Vijay; Lee, Jennifer Y; Chiu, Alexander G

2012-12-01

343

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 1