PREDILECTION OF SITE IN CHRONIC RHINOSINUSITIS: TOMOGRAPHIC FINDINGS IN 100 PATIENTS

OBJECTIVE:To study the pattern of mucosal involvement in chronic rhinosinusitis usingcomputed tomography of 100 patients.DESIGN:A prospective study of mucosal involvement of paranasal sinus region was done on100 computed tomography scans of patients with chronic rhinosinusitis.RESULTS: The most common site of involvement was osteomeatal complex followed bymaxillary antrum. This was followed by anterior ethmoids, posterior ethmoida, frontal sinus andsphenoid sinus, in that order.CONCLUSION:Osteomeatal complex is the most common site to get involved in chronicrhinosinusitis. The blockade in the osteomeatal complex subsequently leads to impaired drainageand inflammation in maxillary, ethmoid and frontal sinuses. Removal of disease in Osteomeatalcomplex region is the basic principle of Functional Endoscopic Sinus Surgery which is bestappreciated on CT scan.