Japanese
English
- 有料閲覧
- Abstract 文献概要
- 1ページ目 Look Inside
Ⅰ・はじめに
ウイリス動脈輪閉塞症あるいは"モヤモヤ病"が独立疾患(症候群)としてわが国で最初に記載されて以来3,5,7,9,11,13,15,16,18),主に脳外科医らを中心として,その病態ならびに本態の究明がなされてきた。しかし本症の発生病理および転帰についてはなお不明のことが多い。ことに小児例は脳虚血症状を上訴とするものが多く,成人例ではくも膜下,脳室あるいは脳内出血で突然発症するものが多いとされている。しかし頭蓋内病変についての検討は充分されていない。
今回西日本地区の本症剖検例を検索する機会が与えられたので,本症の予後を直接左右する頭蓋内出血の種類,頻度,拡がり,出血源について検討し,二,三の知見を得たので、文献的考察を加え報告する。
Seventeen autopsy cases with occlusion of the circle of Willis were examined clinicopathologi-cally. These patients ranged in age from 8 years to 64 years and consisted of 6 males and 11 females.
The following results were obtained.
1. Fresh and massive intracerebral hemorrhage was confirmed in 13 of 17 patients and cerebral infarct in 4 of 17 patients.
2. Among these 13 patients, massive hemorrhage was found in basal ganglia, thalamus and hypo-thalamus of 9 patients, and in thalamus, cerebral peduncle and midbrain of 4 patients.
3. Rupture of the dilated muscular-type arteries was noted in the thalamus and basal ganglia in 2 of 13 patients. Ruptured arteries with organization of the lumen were found in the old hemorrhagic foci in one of them.
4. Overgrown and dilated arteries, branching off from the circle of Willis, were confirmed in 11 patients. These arteries consisted of "perforating" arteries well developed as collateral circulation.
5. No rupture in these arteries of the subara-chnoidal spaces was found in 11 patients. In one of them, a small saccular aneurysm was found.
These findings strongly suggest that in patients with occlusion of the circle of Willis intracerebral rupture of overgrown "perforating"arteries as collateral circulation may be the main cause of intracranial hemorrhage and intracerebral hemor-rhage due to rupture of the arteries may be re-peated.
Copyright © 1979, Igaku-Shoin Ltd. All rights reserved.