クモ膜下出血を初発症状としたAngioblastic meningiomaとVascular hamartomaの2治験例

Two Cases Showing Subarachnoid Hemorrhage from Angioblastic Meningioma and Vascular Hamartoma

Ⅰ．はじめに

　クモ膜下出血の原因としては高血圧症，脳動脈瘤ならびに脳動静脈奇形などが代表的なものであるが，脳腫瘍あるいはcryptic vascular malformationからのものは比較的稀とされている^{12，14，21，22）}．著者らはクモ膜下出血を初発症状としたangioblastic meningiomaと組織奇形的性格をもつvascular hamartomaの2例を経験したのでこれを報告し，若干の文献的考察を加えてみる．

As a causative factor in spontaneous subarachnoid hemorrhage, vascular anomalies, especially aneurysm or arteriovenous malformation, have been generally recognized. On the other hand, subarachnoid hemorrhage from brain tumor and cryptic vascular malformation are rare. We experienced two cases showing subarachnoid hemorrhage from angioblastic meningioma and vascular hamartoma as an initial symptom.

Case 1: A 48-year-old woman, who complained of severe headache and vomiting on Feb. 10th, 1972, gradually became lethargic. Lumbar puncture revealed moderately hemorrhagic C. S. F..