髄膜腫被膜摘出の必要性

Necessity of Meningioma Capsulectomy

Point

・髄膜腫周囲の厚い結合組織として認識できる膜様組織（被膜）には，腫瘍細胞浸潤を認めることが多い．

・腫瘍周囲のくも膜の肥厚と区別がつきにくい膜様組織には，腫瘍細胞浸潤を認めることがあり，再発の可能性は否定できないが，再発の頻度は高くはない．

・被膜摘出は脳損傷のリスクと再発のリスクを検討し，方針を決める．

　The need for resection of the meningioma capsule has long been debated and remains controversial. Even the definition of a capsule does not seem to have been established. We described the histopathological findings of the so-called capsule and the necessity for resection, considering tumor cell invasion and recurrence, based on a literature review.