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I.はじめに
顔面神経鞘腫(以下VII-Nm)は,極めて稀な腫瘍で,これまでに114例が報告されているのみである.顔面神経麻痺の患者をみた場合に,この疾患を念頭に置いておかなければ見過してしまう危険がある.われわれは最近このVII-Nmを2例経験し,これまで報告されていないCT上の所見で興味ある知見が得られたので,諸家の注意を喚起する意味でこの2症例を文献的考察を加えて報告する.
Two cases of facial nerve neurinoma (VII-Nm) were reported.
The first case is a 41-year-old man who had 16 years of history of slowly progressive right facial palsy and hearing disturbance. The tumor originat-ed in horizontal portion of the right facial nerve, and extended epidurally into the middle cranial fossa, as well as medially along the facial canal to the C-P angle. The second case is a 55-year-old man with 16 years of history of progressive right facial palsy which was followed by hearing disturbance. The tumor was found in the vertical portion of the right facial nerve, expanding in the petrous bone.
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