Bifid Direct Aortic Arch Origin of Left Vertebral Artery: A Unique Vascular Variant

The present report describes an unusual case of a duplicated origin of the left vertebral artery from the aorta discovered incidentally in a young patient. Computed tomographic angiography followed by conventional angiography demonstrated this anomaly. Angiographic findings and vertebral artery embryogenesis and anomalies are discussed.