側頭葉てんかん症例にみられたMicrotumorの1例

Microtumor Presenting with Temporal Lobe Epilepsy: A case report

I．はじめに

　側頭葉てんかん症例の側頭葉切除標本から脳腫瘍が発見されることは稀ではない．しかし，肉眼的に腫瘍塊の形成がみられず，病理維織学的検索によりはじめて腫瘍細胞が認められたという報告は少ないようである^5）．

　最近，われわれは難治性側頭葉てんかん患者に側頭葉切除術を行ったところ，その切除標本の組織学的検索でoligodendroglia様細胞の巣状の増生がみられた例を経験した．本症例にみられた病理組織像は，ラット実験脳腫瘍にみられるmicrotumorに酷似しており，興味ある症例と考えたので報告する．

A 15-year-old girl was admitted to our clinic on July 16, 1985 with the epilepsy which had been resistant to various anticonvulsant therapies. At the age of 10 years automatism seizure, characterized by purposeless movement of arms and head of which the patient was unaware, began to occur and became as frequent astwo to three times each day. From the age of 13 years, there were also grand mal seizures several times a year in spite of medical treatment. She had normal delivery and no history of febrile convulsion. There was no family history of epilepsy or mental disease.