title: A rare case of absent left common carotid artery with bovine origin of the left external carotid artery.
abstract: A 22-year-old man had cerebral venous sinus thrombosis and his angiogram incidentally revealed an absent left common carotid artery with bovine origin of the left external carotid artery. There was also an associated low bifurcation of the right common carotid artery and basilar artery fenestration. The absence of a common carotid artery is a very rare angiographic finding, and an association with a bovine origin of the left external carotid artery has not been reported previously in the literature. Here we provide a description of the case along with a review of the literature and embryology.
authors.affiliation: Department of Neurosurgery, Sir Ganga Ram Hospital, New Delhi, India.
authors.forename: Sumit
authors.initials: S
authors.lastname: Goyal
authors.affiliation: Department of Neurosurgery, Sir Ganga Ram Hospital, New Delhi, India.
authors.forename: Ajit Kumar
authors.initials: AK
authors.lastname: Sinha
mesh_terms: D001013:Aorta, Thoracic / Q000002:abnormalities* / Q000000981:diagnostic imaging; D017536:Carotid Artery, Common / Q000002:abnormalities* / Q000000981:diagnostic imaging; D002533:Cerebral Angiography; D006801:Humans; D033162:Incidental Findings; D008297:Male; D012851:Sinus Thrombosis, Intracranial / Q000000981:diagnostic imaging*; D014057:Tomography, X-Ray Computed; D055815:Young Adult
keywords: Angiography; Intervention