title: Agenesis of the cervical and petrosal portions of the left internal carotid artery.
mesh_terms: D000328:Adult; D002343:Carotid Artery, Internal / Q000002:abnormalities* / Q000000981:diagnostic imaging; D002533:Cerebral Angiography; D002536:Cerebral Arteries / Q000002:abnormalities*; D006801:Humans; D008297:Male; D013100:Sphenoid Bone