American Journal of Neuroradiology 20:1284-1286 (8 1999)
© 1999 American Society of Neuroradiology
ARTICLE
Intracystic Hemorrhage of the Middle Fossa Arachnoid Cyst and Subdural Hematoma Caused by Ruptured Middle Cerebral Artery Aneurysm
a Department of Radiology, Kurume University School of Medicine, Fukuoka, Japan (D.H., T.A., K.K., N.T., H.N., N.H.). Department of Neurosurgery, Koyanagi Memorial Hospital, Saga, Japan (M.W., A.O.), Interventional Neuroradiology, Massachusetts General Hospital, Harvard Medical School (A.M.N.)
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.