松果体部血腫の1例

Hematoma in The Pineal Region: A case report

I．はじめに

　松果体部は出血あるいは血腫形成の場としては稀な部位である．

　著者らは最近，比較的突然に視力障害をきたし，CTスキャン上，松果体部に高吸収域を認める症例を経験した．20年前の鞍上腫瘍の既往歴から松果体腫瘍の疑いで摘出術を行ったが，組織学的検索では腫瘍細胞は認められず，単なる血腫と診断せざるを得なかった．この稀な経験をもとに，その出血源について文献的考察を試みた．

A 44-year-old man came to our clinic, complaining of slowly progressive disturbance of visual acuity and of ocular movement.

This patient suffered from headache, narrowing of visual field and polyuria about 20years ago, and received surgical and radiation therapy under the diagnosis of pituitary adenoma. Clinical symptoms and signs of this patient, except for bitemporal hemianopsia, almost completely disappeared after these treatment. The detailed information about the histology and radiation dose are not available at the present time.