正常圧水頭症にて発症した松果体細胞腫の1例

A Case of Pineocytoma presenting with Symptoms like Normal Pressure Hydrocephalus

I．はじめに

　高齢者の歩行障害や見当識障害の原因のひとつとして水頭症に注意が喚起されている^5）．われわれは歩行障害，失見当識，尿失禁という正常圧水頭症（NPH）の3主徴を主訴に来院した患者で松果体部腫瘍が水頭症の原因となった1例を経験した．本稿では高齢者の松果体部腫瘍の特異性と本症例の病理組織所見を主に考察を加え，報告する．

A pineocytoma in an old man, whose initial symp-toms resembled a normal pressure hydrocephalus, is reported. This 67-year-old man gradually becameuncommunicative and difficult to walk alone in three months. Just before visiting our clinic, his family also noticed his nocturnal urinary incontinence. CT scan on admission disclosed tumor in the posterior wall of the third ventricle, and subsequent hydro-cephalus. This oval, isodense tumor was homo-geneously enhanced after the injection of contrast medium on CT scan.

The vertebral angiography showed a mass in the pineal region with no vascular staining.