Arterial switch operation with coronary button extension and neo-pulmonary trunk realignment for a rare coronary pattern.

Coronary anatomy is key for arterial switch operations as reimplantation for coronary artery patterns originating from the same sinus is often challenging. We experienced an extremely rare coronary artery anatomy case (Leiden convention: 1 R, 1LCx) and successfully performed an arterial switch operation with coronary button extension and neo-pulmonary trunk realignment maneuver.