全摘した乳児巨大頭蓋内奇形腫の長期生存例

A Case of Giant Intracranial Teratoma in Early Infancy:A 13-year-follow-up study after operation

I．はじめに

　1歳未満の乳児脳腫瘍は早期発見が困難で，発症すれば急激な経過をたどり，手術を行ったとしても治療成績は，決して良好ではない．たとえ長期生存例でも，精神発達，身体発育の点で，良好な予後は期待できないと考えられてきた^1,3,7,13）．今回は，すでに全摘出成功例として報告している乳児期の両側前頭蓋窩を占める320gもの巨大奇形腫の症例について，患者を13歳の現在まで長期追跡しているので，その後の経過を報告する．

A long-term result after total removal of a giant intracranial teratoma in early infancy is reported. The patient was a 5-month-old boy with vomiting, con-vulsion and right hemiparesis occuring acutely and shortly before admission. Plain skull films, In-113m brain scintiscanning and carotid angiography revealed a giant tumor located widely over both frontal lobes. At operation, the tumor, originated from the base of the anterior half of the cranial cavity. A mature teratoma weighing 320 grams was totally removed without sacrificing the adjacent brain and vessels.