We report 5 cases of congenital coronary artery anomalies. Two involving the right coronary artery arise from the left sinus of Valsalva, two of the circumflex artery arise from the right sinus of Valsalva and a patient with the left coronary artery arise from the right coronary ostium and passes obliquely posteriorly behind the right ventricular outflow tract and the aorta suffering an acute myocardial infarction and coronary artery by-pass surgery was performed in the acute phase.