抄録
A case of ventricular meningioma associated with intracerebral and intraventricular hemorrhages was reported.
The patient was a 69-year-old male who had been showing mild dementia for 6 months. He was transferred because of a sudden onset of headaches, right hemiparesis, total aphasia and disturbances in consciousness. A computerized tomography scan disclosed a well enhanced left lateral ventricular mass. A left parietotemporal intracerebral and intraventricular hemorrhages was also noted. A left carotid angiography showed dilatation of the choroidal artery and tumor stain in the left trigone, especially in the venous phase. Extravasation from the outer margin of the tumor was noted. Left parietotemporal craniotomy and total removal of the tumor and intracerebral hematoma were performed. The tumor was encapsulated and associated with a clot. The histological diagnosis was fibroblastic meningioma with whorl formation. In the peripheral area of the tumor, many thin-walled angiomatous vessels were observed. The post-operative course was uneventful, and the patient was transferred to another hospital because of aphasia and disorientation. The authors reviewed the literature and discussed the mechanism of intracerebral hemorrhage from lateral ventricular meningioma.
