Double aortic arch: a rare cause of stridor in infants.

Double aortic arch is the most common vascular ring anomaly. It usually presents with symptoms related to tracheal and oesophageal compression. The constricting vascular ring may lead to stridor in infants and young children, which could be mistaken for upper respiratory tract infections or foreign body aspiration. It is therefore prudent to have a high index of suspicion when evaluating cases of paediatric stridor. Contrast-enhanced computed tomography and cardiac magnetic resonance imaging are the diagnostic modalities of choice to investigate vascular rings. We report a case of a stridulous infant with a double aortic arch.