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I.はじめに
脳血管奇形の分類は従来のarteriovenous malforma—tion(AVM),cavernous angioma,capillary telangiec—tasia,venous angioma(VA)の4つの分類に代わり,最近ではその互いの移行型もしくは混合型を認める分類が提唱されている.最近われわれは動脈性成分を有するVAの1例と,同一のdraining veinに灌流するAVMとVAとの混合奇形と考えられる1例を経験した.興味ある症例と考えられ,文献的考察を加え報告する.
Clinical features of two patients with mixed angiomas are presented. One patient with a cerebral venous angioma with arterial components was success-fully treated with radiation therepy, and the other, who had a common draining vein with cerebellar arteriove-nous malformation and venous angioma, was treated with surgical removal of the arteriovenous malforma-tion. These two cases suggested that there is a similar-ity between the pathogenesis of arteriovenous mal-formation and venous angioma in the brain.
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