[Abnormal basilar vascular network containing an aneurysm, with special referrence to morphological findings with surgical microscopy].
D000328:Adult; D002536:Cerebral Arteries / Q000473:pathology*; D002941:Circle of Willis / Q000473:pathology*; D003097:Collateral Circulation; D006801:Humans; D002532:Intracranial Aneurysm / Q000150:complications / Q000473:pathology*; D008297:Male