Anomalous origin of the right vertebral artery from the right common carotid artery associated with an aberrant right subclavian artery.

Vertebral artery origin anomalies are typically incidental findings during angiography or post mortem examination. We present two cases of vertebral origin from the right common carotid artery in association with an aberrant right subclavian artery. We also review the embryonic development and the clinical significance of this anomaly.