[9 cases presenting an abnormal vascular network at the base of the brain].
D000293:Adolescent; D000328:Adult; D001921:Brain / Q000098:blood supply*; D002339:Carotid Arteries / Q000002:abnormalities; D002533:Cerebral Angiography; D002536:Cerebral Arteries / Q000002:abnormalities*; D002648:Child; D002675:Child, Preschool; D003097:Collateral Circulation; D005260:Female; D006801:Humans; D008297:Male