Anomalous vertebral artery origins: the first and second reports of two variants
Daniel P Hsu1, Ashley D Alexander, Robert C Gilkeson
1Department of Radiology, Section of Neuroradiology (DPH) and Thoracic Imaging (RCG), University Hospitals-Case Medical Center, Cleveland, Ohio, USA. daniel.hsu@uhhospitals.org
Abstract:
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.
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