Anomalous origin of the posterior descending artery from the left anterior descending coronary artery: cardiac surgeons beware

The unusual variant coronary anatomy of a 54 year old man with angina is illustrated here schematically and angiographically. The right coronary artery (NR) was non-dominant. The circumflex artery (Cx) continued along the atrioventricular groove giving off the lateral circumflex (LCx) before passing onto the inferior surface and terminating …