Fig. 3

a and b Three-dimensional volume-rendered computed tomographic angiograms showing the anomalous origin of the left coronary artery from the pulmonary artery syndrome (arrow in a). Dilated intercoronary arteries (short arrows in b) can be seen along the epicardial surface, representing collateral pathways between the RCA and the left coronary artery. Ao Aorta, LAD Left coronary artery, LCx Left circumflex coronary artery, RA Right atrium, RCA Right coronary artery, RV Right ventricle, TP Pulmonary trunk