A suprasellar arachnoid cyst destructing sphenoid sinus: an unusual cause of headache in an elderly female.

Headache is one of the most frequent physical complaints of humans. Although headaches are generally benign, neuroimaging studies are frequently performed in clinical practice for the fear of missing a serious underlying disease. Arachnoid cysts are cavities with a content similar to cerebrospinal fluid, frequently communicating with the subarachnoid space. Arachnoid cysts are often discovered incidentally in MRs performed for a variety of reasons [1]. They make up 1% of the intracranial space occupying lesions, and although typically seen in children (13%), they may be undiagnosed until the patient has become adult [2, 3]. In adults, suprasellar cysts represent 9% of all the arachnoid cysts while in the paediatric population this percentage reaches 15% [2]. Since a symptomatic arachnoid cyst in an elderly patient is rare [4], the case was reported. Case report