Pictorial Review of Congenital Aortic Arch Anomalies

Congenital aortic arch variants and anomalies are frequently encountered in radiology practice. Some of these malformations are symptomatic, while others may have surgical or interventional implications. CTA and MRA provide a comprehensive evaluation of the abnormalities. This article briefly describes the embryologic development of the aortic arch and focuses on a multi-modality review of common and uncommon variants and anomalies of the aortic arch including variant branching and vascular ring.