悪性化と頭蓋外多発転移をきたした再発髄膜腫の1剖検例

Recurrent Meningioma with Malignant Change and Extracranial Multiple Metastases

I．はじめに

　一般に原発性脳腫瘍の神経管外転移は稀であるが，今回われわれは全経過13年の間に再発を繰り返し，悪性化と肺，肝，骨などへの頭蓋外多発転移をきたして死亡した傍矢状洞部髄膜腫の1例を経験したので，若干の文献的考察を加えて報告する．

A case of recurrent meningioma with malignant change and extracranial multiple metastases is reported.

A 51-year-old female was operated on and left para-sagittal meningioma was extirpated by Simpson grade II. Histological diagnosis was fibroblastic and tran-sitional meningioma with slight atypism. Six years la-ter, however, the tumor (transitional meningioma with slight mitosis) recurred in the same portion and was re-moved again by Simpson grade II.