title: Two anatomic variations of the vertebral artery in four patients.
abstract: In this article, we present four cases of rare anomalous aortic arch and vertebral arteries and discuss the possible embryologic etiologies. These include two cases in which the right vertebral artery originated from the right common carotid artery associated with an aberrant right subclavian artery originating from the middle of the aortic arch and two cases in which the left vertebral artery had a double origin from the left subclavian artery and aortic arch.
authors.affiliation: Department of Radiology, West China Hospital of Sichuan University, Chengdu, Sichuan, China.
authors.forename: Meixiong
authors.initials: M
authors.lastname: Cheng
authors.forename: Xie
authors.initials: X
authors.lastname: Xiaodong
authors.forename: Chaohua
authors.initials: C
authors.lastname: Wang
authors.forename: Chao
authors.initials: C
authors.lastname: You
authors.forename: Boyong
authors.initials: B
authors.lastname: Mao
authors.forename: Min
authors.initials: M
authors.lastname: He
authors.forename: Changwei
authors.initials: C
authors.lastname: Zhang
mesh_terms: D000293:Adolescent; D015901:Angiography, Digital Subtraction; D001013:Aorta, Thoracic / Q000002:abnormalities* / Q000000981:diagnostic imaging; D001027:Aortography; D017536:Carotid Artery, Common / Q000002:abnormalities; D005260:Female; D006801:Humans; D033162:Incidental Findings; D008297:Male; D008875:Middle Aged; D013348:Subclavian Artery / Q000002:abnormalities; D014711:Vertebral Artery / Q000002:abnormalities* / Q000000981:diagnostic imaging