title: Megadolichobasilar anomaly, basilar impression and occipito-vertebral anastomosis.
abstract: The authors describe a case of a megadolichobasilar anomaly associated with basilar impression, bilateral megadolichocarotid arteries and an occipito-vertebral anastomosis. The concurrence of these anomalies lends support to the hypothesis that congenital factors play a part in the origin of the megadolichobasilar anomaly.
mesh_terms: D001158:Arteries / Q000002:abnormalities; D001488:Basilar Artery / Q000002:abnormalities*; D002339:Carotid Arteries / Q000002:abnormalities*; D006801:Humans; D008297:Male; D008875:Middle Aged; D009778:Occipital Lobe / Q000098:blood supply; D010985:Platybasia / Q000150:complications*; D013577:Syndrome