Anomalous origins of the right and posterior descending coronary arteries from the left anterior descending coronary artery: Unusual pattern of single coronary artery.

We present an unusual pattern of single coronary artery which has not been reported previously. The proximal portion of the left anterior descending (LAD) artery gives rise to right coronary artery (RCA) and the distal LAD extends to the posterior descending artery which reaches the cardiac crux. A stent was implanted successfully at the middle portion of the LAD just beyond the origin of the RCA.