小脳出血をきたした聴神経腫瘍の1例

A Case of Acoustic Neurinoma with Intratumoral Hemorrhage Extending to Cerebellar Hemisphere

I．はじめに

　良性脳腫瘍からの出血により症状増悪をきたした症例の報告は稀である．ちなみに，聴神経鞘腫からの出血例の報告は現在まで6例の報告をみるにすぎない^1-3,5,7,8）．

　われわれは最近，聴神経鞘腫からの出血が小脳実質内へ進展し，小脳出血の像を呈した1症例を経験した．さらに，切除した腫瘍の組織像に出血機転を強く示唆するtelangiectasia様の異常血管集簇を認めた．若干の文献的考察を加え報告する．

A case of acoustic neurinoma which developed in-tratumoral hemorrhage extending to the right cere-bellar hemisphere, is reported.

A 54-year-old man was diagnosed as cerebello-pon-tine angle tumor, possibly acoustic neurinoma, from typical clinical course, neurological signs and findings of skull X-P and CT scan at the first visit to our out-patient clinic on July 28, 1981. On August 6, 1981, he was transferred to our in-patient ward in emergency because of sudden onset of headache and impairment of consciousness.