Intracystic Hemorrhage of the Middle Fossa Arachnoid Cyst and Subdural Hematoma Caused by Ruptured Middle Cerebral Artery Aneurysm

Abstract

Summary: We report a case of a cerebral aneurysm arising from the bifurcation of the left middle cerebral artery that ruptured into a left middle cranial fossa arachnoid cyst, associated with acute subdural hematoma. We discuss the relationships of aneurysm, arachnoid cyst, and subdural hematoma.