[Anomalous origin of the right coronary artery from the pulmonary artery: report of a case].

An asymptomatic 5-year-old boy with anomalous origin of the right coronary artery from the pulmonary artery was reported. He was referred to us for evaluation of an apical continuous murmur. The chest radiograph, and electrocardiograms at rest and during exercise were unremarkable. This anomaly, whose echocardiographic findings have not been described before, were visualized first by two-dimensional echocardiography, and confirmed by coronary angiography. There have been some reports of sudden death occurring in patients with this rare congenital heart defect. We believe that careful follow-up study is indicated.