Retroesophageal left brachiocephalic vein with an ectatic aberrant left subclavian artery: A rare double vascular loop.

We hereby present a rare variant course of left brachiocephalic vein coexisting with an aberrant right subclavian artery in a patient with a ventricular septal defect with pulmonary atresia. This case highlights the importance of CT angiography in diagnosing associated aortic arch and systemic venous anomalies in complex congenital heart diseases.