title: Bilateral persistent carotid-basilar anastomoses.
mesh_terms: D000328:Adult; D001488:Basilar Artery / Q000002:abnormalities* / Q000000981:diagnostic imaging; D002339:Carotid Arteries / Q000002:abnormalities* / Q000000981:diagnostic imaging; D002533:Cerebral Angiography; D005260:Female; D006801:Humans; D008297:Male