Anomalous triple origin and neck mergers of a vertebral artery.

ABSTRACT

Accurate knowledge of the variant origin of the vertebral arteries (VAs) is important in vascular surgery and angiographic procedures in the neck. A triple origin of the VA is extremely rare. We report the first adult case of triple origin of the right VA from the right subclavian artery (SA). This report demonstrates magnetic resonance (MR) angiography findings of this unusual anatomic variation .