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I.はじめに
中枢神経系の血管奇形の中でも脳動静脈奇形に合併する脳動脈瘤21,32)はよく知られているが,静脈性奇形を伴ってazygos anterior cerebral artery(以下azygos ACA)に脳動脈瘤を合併した症例は,著者らが調査し得た限りでは報告をみないようである.
今回,われわれは肉眼的および組織学的に脳表に軟膜血管腫症が観察され,脳血管撮影ではHuangら7)の分類でmedullary venous malforma—tionに一致し,さらにazygos ACAの脳動脈瘤の合併を認めた症例を経験したので報告する.
A case of medullary venous malformation with azygos anterior cerebral artery aneurysm is reported, which was associated with the leptomenigeal angio-matosis on the cortex of the right frontal lobe.
A 62-year-old female was admitted to the Kurume University Hospital on June 21, 1985, because of a convulsive seizure. On admission, neurological and general examinations, except for slightly liver function disorder, was no abnormality.
Plain CT scan showed the cortical atrophy and two small high-desity areas in the right frontal lobe. Enhanced CT scan showed a high-density area in the genu of the corpus callosum.
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