破裂脳動脈瘤と下垂体腺腫の合併例

A Ruptured Aneurysm Associated with Pituitary Tumor

Ⅰ．はじめに

　脳動脈瘤と脳腫瘍との合併例は，文献上少なからず認められ，われわれもこれまで4例を経験している．しかしその大部分は，脳腫瘍の精査中に発見された非破裂動脈瘤であり，動脈瘤破裂によるくも膜下出血にて発症した合併症例の報告は少ない．最近われわれは，脳動脈瘤破裂によるくも膜下出血にて発症し，下垂体腺腫を合併していた1症例を経験したので，若干の文献的考察を加え報告する．

The aneurysm case associated with brain tumor is not so rare. Most of aneurysms are non-ruptured and found incidentally during the examination for brain tumor.

We have experienced with 4 aneurysm cases associated with brain tumor among 1,280 aneurysm cases during these 17 years. One out of 4 cases was of ruptured aneurysm associated with pituitary tumor. This rare case and review of the literature were described.