めまいを伴った小脳静脈性血管腫の1例

A Case of Cerebellar Venous Angioma Associated with Vertigo

I．はじめに

　静脈性血管腫は，脳血管性奇形の中で動静脈奇形とともに重要なものの一つであるが，臨床的に診断されることは稀である^1,2）。

　今回経験した症例はめまいが唯一の症状で，このような例はわれわれが調べえた範囲では報告がない。症例の経過を述べ参考に供するとともに，若干の文献的考察を加えた。

　A 51-year-old housewife had vertigcnous attack one month prior to admission. Neurotological examinations revealed lateral gaze nystagmus and oblique nystagmus in Frenzel glasses. Her oculomotor system and caloric nystagmus response were normal. Computed tomography revealed a high density area in the left cerebellopontine angle. From characteristic findings of the vertebrobasilar angiography, she was diagnosed as having cerebellar venous angioma. Etiology and property of venous angioma were discussed.