脳膜性膠質腫に就て

On Meningeal Gliomas

　腦膜から膠質腫が發生し得ることは多くの著者が之を承認するところであるが，Meyerは大腦表層に發生した膠質腫（corticales Glioblastoma，　Spingioblastoma, Astroblastomaetc．）が腦膜腫の外觀を呈することに注意を向けている。一方に於て佛蘭西學派は古くから，腦軟膜の神經外胚葉性を主張し，腦膜腫を目して末梢性膠質腫と看做す傾向があつた。本紙の目的とするところは腦膜起原の膠質腫を確認すると共に，佛蘭西學派の所説を検討するにある。

Cases of neuroglia nests (Wolbach), meningeal gliomatosis (astrocytoma) associated with a me-ningioma, cortical spongioblastoma by v. Recklin-ghausen's disease and glia hernia (Wolbach) by increased intracranial pressure (brain tumors) were reported with comment of theory of French school regarding meningiomas as a peripheral glioma. On histological viewpoint, gliomas should be distinguished strictly from meningiomas of arachnoidal cell origin; i. e. arachnothelioma and its derivatives. Writers, therefore, are of opinion that any tumor presenting histologic fea-tures of central glia should be excluded from meningioma proper. Although writers support the mesectoderm theory (Platt, Stone, Raven etc. ) of modern embryology, they adopt the term "peripheral glia" to Schwannian cells solely.