松果体部および肝にAngiosarcomaを認めた1例

Angiosarcoma of the Liver and Pineal Region

I．はじめに

　angiosarcomaは悪性血管内皮腫ともいわれる稀な腫瘍であり，好発部位としては骨，筋肉，肝臓，脾臓，皮膚，皮下などがあげられる．今回われわれは松果体部腫瘍として発症し，約1年後に肝のangiosarcomaより出血をきたして死亡したが，剖検の結果，松果体部腫瘍もangiosarcomaであった極めて稀な症例を経験したので，若干の文献的考察を加え報告する．

Angiosarcoma is a rare malignant tumor originating from vascular endothelial cells. We have experienced a case of 17-year-old man, who had angiosarcoma in the pineal region and the liver. Patient's initial symptom was headache and CT scan revealed a high density mass in the pineal region with obstructive hydrocepha-lus. After the radiation therapy, the tumor was dis-appeared completely on CT scan. One year later, he de-veloped abdominal pain, and CT scan and angiogram revealed multiple angioma like lesions in the liver.