title: Bilateral arch origin of the vertebral arteries.
abstract: A case of bilateral anomalous origins of the vertebral arteries (VAs) is reported. Both VAs arose directly from the aortic arch between the left common carotid artery and the left subclavian artery. The possible embryologic mechanism and clinical importance of this previously unreported variant are reviewed.
authors.affiliation: Division of Neuroradiology, The Johns Hopkins Hospital, Baltimore, MD 21287, USA.
authors.forename: Sait
authors.initials: S
authors.lastname: Albayram
authors.forename: Philippe
authors.initials: P
authors.lastname: Gailloud
authors.forename: Bruce A
authors.initials: BA
authors.lastname: Wasserman
mesh_terms: D015901:Angiography, Digital Subtraction; D001013:Aorta, Thoracic / Q000002:abnormalities* / Q000000981:diagnostic imaging; D006801:Humans; D008297:Male; D008875:Middle Aged; D014711:Vertebral Artery / Q000002:abnormalities* / Q000000981:diagnostic imaging