Brain tumors associated with intracranial vascular anomalies.
Among 1250 patients with brain tumors the authors found in 7 of them a coexistent vascular anomaly. 6 patients had arterial aneurysm and 1 arteriovenous malformation. 3 tumors were metastatic carcinomas, 2 multiform glioblastomas, 1 craniopharyngioma and 1 chromophobe adenoma. All aneurysms were located in direct neighbourhood of the tumor. The authors postulate angiography in all patients with brain tumors who are planned to be treated surgically.