Massive basilar artery aneurysms.
D000328:Adult; D001488:Basilar Artery / Q000000981:diagnostic imaging / Q000601:surgery*; D001933:Brain Stem / Q000601:surgery; D002533:Cerebral Angiography; D004569:Electroencephalography; D006429:Hemiplegia / Q000209:etiology; D006801:Humans; D002532:Intracranial Aneurysm / Q000150:complications / Q000175:diagnosis / Q000000981:diagnostic imaging / Q000601:surgery*; D008297:Male; D008875:Middle Aged; D011011:Pneumoencephalography