Anomalous left coronary artery arising from the pulmonary artery discovered beyond infancy.

Anomalous origin of the left coronary artery from the pulmonary artery (ALCAPA) is a congenital heart defect rarely diagnosed beyond infancy. We present a 9-year-old girl who had once been diagnosed as congenital coronary artery fistula. Echogenic mitral chordae tendineae, multiple coronary collaterals within the ventricular septum and free ventricular wall, and a shunting flow from the left coronary artery into the pulmonary artery were prominent echocardiographic features of ALCAPA. Reimplantation of the left coronary artery directly onto the aorta achieved a favorable outcome with regression of left ventricular size and alleviation of mitral regurgitation.