くも膜下出血様発作を呈した聴神経腫瘍の1例

A Case of Acoustic Neurinoma Simulating Subarachnoid Hemorrhage

I．はじめに

　脳腫瘍，特に悪性脳腫瘍からの出血により症状増悪を来たす症例は，それほど稀なものではないが，最近われわれは聴神経鞘腫から出血し，くも膜下出血様症状を呈した稀有な1例を経験したので，若干の文献的考察を加え報告する．

A 49-year-old male, who had been suffering from left hearing disturbance before 5 years, suddenly developed severe headache, nausea and vomiting on January 3, 1979.

Both plain and enhanced CT performed on the day of admission showed a nearly round high density area at the left cerebello-pontine angle.