"Moyamoya"病に合併した脳底動脈瘤

A Case of Cerebrovascular Moyamoya Disease Associated with Basilar Aneurysm

I．はじめに

　Moyamoya病に脳動脈瘤を合併した症例の報告は比較的稀で，現在までに26例の報告がなされている^{1,2,5-7,9,10,12,14,15,17-19）}．これらのなかでは，通常の脳動脈瘤発生部位に脳動脈瘤が認められた例は17例と，過半数以上を占めている．一方，Moyamoya血管に脳動脈瘤が認められた例は9例と少ない．著者らはMoyamoya病に脳底動脈瘤を合併した症例を経験したので，若干の考察を加えて報告する．

A case of Moyamoya disease associated with a basilar aneurysm was reported. The patient was a 49-year-old male who was attacked by subarachnoid hemorrhage in February 1980.

Upon admission to our hospital, he was in good general condition smd neurological examinations showed mild left hemiparesis and meningeal irritation signs. Four-vessel angiography showed bilateral stenosis and occlusion of the internal carotid arteries and abnormal vascular network in the cerebral base.