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Anomalous vertebral artery origins: the first and second reports of two variants
  1. Daniel P Hsu1,
  2. Ashley D Alexander2,
  3. Robert C Gilkeson1
  1. 1Department of Radiology, Section of Neuroradiology (DPH) and Thoracic Imaging (RCG), University Hospitals—Case Medical Center, Cleveland, Ohio, USA
  2. 2Medical student, Case Western Reserve University School of Medicine, Cleveland, Ohio, USA
  1. Correspondence to Daniel P Hsu, University Hospitals—Case Medical Center, 11100 Euclid Avenue, Cleveland, OH 44106, USA; daniel.hsu{at}


We present two cases of aberrant origins of vertebral arteries. Case 1 is of a patient undergoing evaluation of an infrarenal aortic aneurysm stent graft. Computed tomography (CT) angiogram revealed an aberrant right vertebral artery that subsequently joined a second right vertebral artery that had the typical origin off the right subclavian artery. This represents an unusual anatomic variation not previously reported in the literature. Case 2 is of a patient being evaluated for thoracic aorta injury. CT angiogram of the chest revealed a five-vessel aortic arch with aberrant origin of the bilateral vertebral arteries distal to the left subclavian artery.

  • Anatomy
  • artery
  • CT

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  • Competing interests None.

  • Provenance and peer review Not commissioned; externally peer reviewed.

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