Suprasellar Epithelial Cyst Associated with Cerebral Aneurysm

Case Report

Abstract

A case of an epithelial cyst lying above the diaphragma sellae associated with a cerebral aneurysm is reported.
A 49-year-old female was admitted because of recurrent episodes of transient weakness of the left limbs. Cerebral angiography showed mild stenosis of the right carotid siphon and an aneurysm arising from the left internal carotid artery. Computerized tomography scan disclosed a round highdensity mass in the suprasellar region. The transient ischemic attack was well controlled by antiplatelet therapy. Neck clipping of the aneurysm and the removal of the tumor were achieved through the pterional route. The cyst wall was lined with ciliated cuboidal cells and non-ciliated PAS-positive cells.
The rare occurrence and the origin of the cyst are briefly discussed.