Contrast-enhanced CT of pulmonary atresia, ventricular septal defect and MAPCA (major aortopulmonary collateral arteries) and right-sided aortic arch. The main pulmonary artery has been anastomosed with a classic central shunt created by the left subclavian artery. This patient has been unifocalised, with some residual MAPCAS. View Video 6 at http://movie-usa.glencoesoftware.com/video/10.1530/ERP-19-0048/video-6.