脳内出血にて発症した横静脈洞部Hemangiopericytomaの1例

Hemangiopericytoma at the Transvers Sinus Presenting with Intracerebral Hemorrhage ： Case Report

Ⅰ．はじめに

　Hemangiopericytomaは全身性に発生し得る腫瘍であるが，頭蓋内に発生するものは全脳腫瘍の約0.2％を占めるに過ぎず比較的稀である．今回われわれは脳内出血で発症した，横静脈洞部より発生したと思われるhemangiopericytomaに静脈洞再建を用いて全摘し，良好な経過を辿った1例を経験したので報告する．

The authors report on a patient with hemangiopericytoma(HPC). This 43-year-old female presented severe headache,vomiting and right homonymous hemianopsia. Magnetic resonance imaging and an angiogram showed a tumor above the left transverse sinus. The patient underwent a total resection of the tumor and reconstruction of the transverse sinus without additional neurological deficits. Based on the findings shown in this case report,hemangiopericytoma should be included in the differential diagnosis from benign meningioma. Because this tumor often undergoes recurrences and metastases,we recommend a combination of radical surgical extirpation of followed by postoperative radiotherapy.