American Journal of Neuroradiology 25:574-576, April 2004
© 2004 American Society of Neuroradiology
Case Report
BRAIN
A Rare Case of a Ruptured Middle Meningeal Aneurysm Causing Intracerebral Hematoma in a Patient with Moyamoya Disease
a From the Department of Neurological Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA
Address correspondence to Christopher J. Koebbe, MD, Department of Neurological Surgery, University of Pittsburgh Medical Center, 200 Lothrop Street, Pittsburgh, PA 15213
Summary: Moyamoya disease is infrequently associated with intracranial aneurysms arising from the circle of Willis vessels or from "peripheral" branches of choroidal and meningeal vessels. We present a rare case of a moyamoya-related aneurysm arising along the dural junction of multiple meningeal branches from the external carotid artery causing intracerebral hemorrhage. Endovascular coil embolization of the middle meningeal artery (MMA) and occipital artery (OA) led to delayed aneurysm obliteration without rehemorrhage.