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Updated: Sep 22, 2025

Focal Cerebral Ischemia Model by Endovascular Suture Occlusion of the Middle Cerebral Artery in the Rat
Published on: February 5, 2011
Right vertebral artery arising from the right common carotid artery with an absent brachiocephalic trunk
B R Omotoso1, R Harrichandparsad2, L Lazarus3
1Discipline of Clinical Anatomy, School of Laboratory Medicine and Medical Sciences, College of Health Sciences, University of KwaZulu-Natal, Westville Campus, Private Bag X54001, Durban, 4000, South Africa.
Abstract:
The right and left vertebral arteries are the first branches of the ipsilateral subclavian arteries. However, in the presence of anatomical variation due to complex embryogenesis, the vertebral artery can arise directly from the aortic arch or any of its major branches. The atypical origin of the vertebral artery is commonly associated with the left vertebral artery. Anatomical variation in the origin of the right vertebral artery is rare. Most available reports are case reports from international studies. We report on a case of right vertebral artery arising from the ipsilateral common carotid artery with an absent brachiocephalic trunk in a South African patient examined by digital subtraction angiography. Reports on anatomical variations are of diagnostic importance prior to surgical interventions or endovascular treatment of cerebrovascular diseases such as cerebral aneurysms and arteriovenous malformations.
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