Basal epidermoidとTrigeminal neurinomaが合併した原発性異種多発性脳腫瘍の1例

The Coexistence of Basal Epidermoid Tumor and Trigeminal Neurinoma within the Posterior Fossa

I．はじめに

　von Recklinghausen　病（以後vR病と略す）を伴わない種類の異なる原発性脳腫瘍の同一個体での合併は文献上では比較的稀なことである^6,9）．

　今回われわれは，それぞれ発生頻度の稀なepidermoldとtrigeminal neurinomaが同一後頭蓋窩硬膜内で相接して存在していた例を手術にて確認した．原発性異種多発性脳腫瘍としては非常に稀な組み合わせと思われるので文献的考察を加え報告したい．

Recently we encountered one case with basal epidermoid tumor originated in the cerebellopontine angle, associated with a trigeminal neurinoma of the Gasserian ganglion and trigeminal root within both middle and posterior fossa.

We wish to present the case with an analytical review of the reported cases of multiple intracranial tumors.

The patient was a 49-year-old man who noted the onset of left facial nerve palsy in March, 1974, which lasted for several years. In April 1976, he developed unsteadiness of gait which was not worsening.