RT Journal Article SR Electronic T1 Intracystic Hemorrhage of the Middle Fossa Arachnoid Cyst and Subdural Hematoma Caused by Ruptured Middle Cerebral Artery Aneurysm JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology SP 1284 OP 1286 VO 20 IS 7 A1 Dong Huang A1 Toshi Abe A1 Kazuyuki Kojima A1 Norimitsu Tanaka A1 Mitsuo Watauabe A1 Akio Ohkura A1 Hiroshi Nishimura A1 Naofumi Hayabuchi A1 Alexander M. Norbash YR 1999 UL http://www.ajnr.org/content/20/7/1284.abstract AB 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.