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I.はじめに
脈絡叢乳頭腫は全脳腫瘍中0.4-0.5%の頻度を占める比較的稀な腫瘍である13).そのうち第三脳室に発生するものは約1割に過ぎず,ことに1歳未満の乳児期に発生したものはそのほとんどが側脳室発生であり第三脳室に発生するものは稀である.われわれは生後7カ月目に頭囲拡大にて発症した第三脳室脈絡叢乳頭腫の乳児例を経験したので若干の考察を加えてこれを報告する.
The incidence of choroid plexus papilloma is about 0.5% of all intracranial tumors, but they are only infre-quently found in the third ventricle. This is a case re-port of choroid plexus papilloma of the third ventricle in an infant.
A make child in his 7th month of age was admitted because of large head circumference, on the 28th February, 1989. CT scan demonstrated hydrocephalus caused by a tumor in the third ventricle. Total removal of the tumor was performed on the 8th of March. His-tologically the tumor was found to be choroid plexus papilloma.
The patient suffered from postoperative subdural effusion and convulsions, so we performed ventriculo-peritoneal shunt on the 14th April, and convulsions were controlled by zonisamid.
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