Anomalous origin of left coronary artery from right pulmonary artery in an infant with coarctation of the aorta.

Anomalous origin of the left coronary artery from the right pulmonary artery is a very rare congenital anomaly, and its occurrence with coarctation of the aorta has been reported in very few patients. We report a neonate where the coronary anomaly was missed preoperatively and diagnosed after repair of the coarctation. The patient thereafter underwent ligation of the left anomalous coronary artery and had an uneventful convalescence.