Anomalous origin of an accessory coronary artery from the main pulmonary artery: report of a case with arrhythmia, precordial pain and left heart failure.

Anomalous origin of the coronary arteries from the main pulmonary artery is a rare congenital malformation. While this anomaly rarely produces cardiac symptoms, the more frequently encountered anomalous left coronary artery arising from the main pulmonary artery is poorly tolerated, the majority of patients dying in infancy. This report describes a symptomatic sixty-year old man with anomalous posterior descending coronary artery arising from the pulmonary trunk and details the angiographic findings.