Anomalous left coronary artery from the pulmonary artery discovered following total anomalous pulmonary venous return repair: a rare entity.

We describe a case of anomalous left coronary artery from the pulmonary artery in association with total anomalous pulmonary venous return. The infant was diagnosed with total anomalous pulmonary venous return at 6 weeks of age and underwent successful surgical repair. On routine follow-up, he was found to have an anomalous left coronary artery from the pulmonary artery without evidence of mitral regurgitation or left ventricular dysfunction. The presence of the left-to-right shunt and secondary elevation in pulmonary artery pressures likely masked the usual findings associated with this coronary anomaly.