Several articles have been written about hyper infl ated sinus structures. Never before, however, a complete overview of all possible pressure induced variations of sinus anatomy have been published. The aim of this study was to make an inventory of the most common CT signs of hyper infl ated paranasal sinus structures. During a period of 2 years all CT-scans of the paranasal sinuses made in an...

Consecutive coronal CT scans of the paranasal sinus and radiologic medical records of patients examined at Wilford Hall USAF Medical Center from July 1987 through December 1988 were reviewed for the presence of pneumatization of the uncinate process. Patients with previous alteration of the anatomy of the paranasal sinus due to facial trauma, carcinoma of the paranasal sinus , inverted papillom...

Background: Paranasal sinus mucoceles are epithelium-lined cystic masses usually resulting from obstruction of ostia. They most frequently occur in the frontal and ethmoid sinuses. The etiology is not clarified, but common identifiable cause following functional endoscopic surgery (FESS), trauma, neoplasms, allergy. clinical symptoms mucocele vary specific, being ophthalmic headache, impinging ...

Infections involving paranasal sinuses and nasal cavities is one of the common public health problem in all age groups. Functional endoscopic sinus surgery has revolutionized in the treatment of sinusitis. MDCT has been the most ideal investigation in the assessment of paranasal sinuses especially in the identification of various anatomical variations that predispose to development of sinus inf...

Isolated or solitary neurofibromas of the paranasal sinuses are rare. Mostly, they involve the maxillary sinus and so far, a solitary neurofibroma of the frontal sinus has never been reported in the literature. We present a case of frontal sinus neurofibroma treated successfully with surgical excision. A 28-year-old male presented with forehead swelling and computed tomography images revealed a...

Fungal sinus infections are being recognized with increasing frequency. We report a case with rhino cerebral and chest phaeohyphomycosis infection caused by Cladosporium bantianum in an 18 year old man with Wegener's granulomatosis. The diagnosis was established by histopathological appearance, direct examination, culture and computerized tomography (CT) scan. This case was successfully tr...

1 Graduation (Otorhinolaryngologist, Brasília University). 2 Graduation (Otorhinolaryngology Medical Resident, Brasília University). 3 Graduation (Assistant Professor, Department of Otorhinolaryngology and Head and Neck Surgery, Brasília University). 4 PhD in Sciences, ENT Department, University of São Paulo (Adjunct Professor, Department of Otorhinolaryngology and Head and Neck Surgery, Brasíl...

Cholesterol granulomas are common in the mastoid antrum and air cells of the temporal bone. In the paranasal sinuses, especially in the frontal sinus, they have occasionally been mentioned in the literature. The pathogenesis is unknown, but the majority of the authors support the concept of airway obstruction in the cells well pneumatised of temporal bone and paranasal sinuses. The authors repo...

Paranasal sinus cancers are rare, aggressive tumours that are usually diagnosed at an advanced stage. They differ from other upper aerodigestive tract tumours in terms of risk factors (wood dust exposure) and premalignant lesions (inverted papillomas). The diagnosis should be suspected in the presence of unilateral and continuous nasal sinus symptoms or bone lysis or a heterogeneous opacity on ...

Objective: A study to evaluate the effectiveness of the use of pre CT checklist in requesting CT paranasal sinuses for managing patients with Chronic Rhinosinusitis (CRS). Place and Duration: CT sinuses performed at Aberdeen Royal Infirmary from 20 Aug 2010 to 3rd Nov 2010 after the introduction of pre CT paranasal sinus request checklist. Methods: Prospective studies of patients undergoing CT ...