Figure 1: View of the posterior aspect of the aorta in a heart with TGA and single coronary ostium from the posterior facing sinus (single RCA, Figure 14C). The LCA is much longer than usual and passes posterior to the pulmonary artery (MPA). Ao- aorta, LAD – anterior descending artery, LCA – left coronary artery, LCx – circumflex artery, RCA – right coronary artery, SN – sinus node artery.