title: Dual origin extracranial vertebral artery: case report and embryology.
abstract: Duplication of the vertebral artery origin is a rare vascular anomaly. The authors describe this finding in a patient who underwent neurointerventional treatment for a midbasilar aneurysm. The embryology and clinical significance is also presented.
authors.affiliation: Division of Neurosurgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA.
authors.forename: Ajith J
authors.initials: AJ
authors.lastname: Thomas
authors.forename: Anand V
authors.initials: AV
authors.lastname: Germanwala
authors.forename: Nirav
authors.initials: N
authors.lastname: Vora
authors.forename: Daniel M
authors.initials: DM
authors.lastname: Prevedello
authors.forename: Tudor
authors.initials: T
authors.lastname: Jovin
authors.forename: Amin
authors.initials: A
authors.lastname: Kassam
authors.forename: Michael
authors.initials: M
authors.lastname: Horowitz
mesh_terms: D000783:Aneurysm / Q000000981:diagnostic imaging / Q000628:therapy; D002533:Cerebral Angiography; D005260:Female; D006801:Humans; D008875:Middle Aged; D015607:Stents; D014057:Tomography, X-Ray Computed; D014711:Vertebral Artery / Q000002:abnormalities* / Q000000981:diagnostic imaging / Q000196:embryology