Abstract
We report a case of an arteriovenous malformation (AVM) that showed extravasation on cerebral angiography. The patient, a 33-year-old male, was immediately admitted to hospital because of a headache, vomiting, right hemiplegia, and a loss of consciousness. CT scans revealed a large intracranial hematoma in the left frontal lobe. Angiography taken 2- hours after he experienced this attack demonstrated an AVM. The nidus was 3 cm in diameter and the AVM, which was being fed by the middle cerebral artery, showed extravasation. Though the patient was comatose, an emergency removal of AVM was performed and the hematoma was evacuated. The patient subsequently made a good recovery. This case is discussed and previous cases in the literature are reviewed.