TY - JOUR T1 - Anomalous vertebral artery origins: the first and second reports of two variants JF - Journal of NeuroInterventional Surgery JO - J NeuroIntervent Surg SP - 160 LP - 162 DO - 10.1136/jnis.2009.001271 VL - 2 IS - 2 AU - Daniel P Hsu AU - Ashley D Alexander AU - Robert C Gilkeson Y1 - 2010/06/01 UR - http://jnis.bmj.com/content/2/2/160.abstract N2 - 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. ER -