Anatomic variations of sphenoid sinus and related structures by CT scan in a sample of Egyptian population

Abstract

The sphenoid sinuses have a remarkable variation in form, dimension and position relative to the surrounding neurovascular structures, knowing its relations before surgery may prove to be the difference between surgical success and fatal complications. The presurgery radiological examinations should be evaluated systematically punctuating all elements of surgical risk and evaluating the degree of pneumatization, protrusion of the surrounding elements and more importantly the dehiscence of the bony walls covering them, found relatively rare in the population, but potentially lethal during surgery.