"真"の後交通動脈瘤の1例

A Case of "True" Posterior Communicating Artery Aneurysm

I．はじめに

　頭蓋内動脈瘤のうち，後交通動脈瘤として報告されている動脈瘤の大部分は内頸動脈後交通動脈分岐部動脈瘤である，われわれは最近，非常に特異な形をした真の後交通動脈瘤を経験したので報告し，手術の問題点について簡単に考察した．

A 57-year-old woman complained of severe headache and vomiting of a week's duration. Spinal tap showed bloody CSF and cerebral angiography revealed the "tru" posterior communicating artery aneurysm.

Left frontotemporal osteoplastic craniotomy and trapping of the aneurysm were performed on August 28, 1979. After operation right hemiplegia, left oculomotor palsy and the disturbance of consciousness developed.