―症例―てんかん原性病変としての脳マンソン孤虫症の1例

A Case of Sparganosis Mansoni Cerebri as An Epileptogenic Lesion

I．緒言

　脳寄生虫症のなかでもマンソン裂頭条虫（Diphylobothrium mansoni）の幼虫であるマンソン孤虫の脳寄生は極めて稀であり，文献上4例^7,8,11,13）で，うち2例は剖検例で，他の2例はいずれも手術により脳から生きたまま摘出されている．最近われわれも，顔面および頭部を右側へ向ける向反発作を主訴とした33歳の男性で脳内肉芽腫の中から生きたマンソン孤虫を摘出した例を経験したので，若干の考察を加え報告する．

　The authors report a case of Sparganosis mansoni cerebri. This 33-year-old man had experienced adversive seizures. Plain CT demonstrated a high density area with surrounding low density area, and homogeneously enhanced with contrast medium in the frontoparietal region. ⁹⁹mTcO₄- brain scintigram showed an abnormal hot area.

　On operating as a cerebral tumor, we had removed a living Sparganum mansoni from the cerebral granuloma. This is the third report in the world to our knowledge of literature, in which alive intracranial Sparganum mansoni was removed.