A rare congenital coronary artery anomaly: anomalous of the left anterior descending coronary artery arising from the right coronary artery and review of the literature.

Most coronary anomalies are clinically asymptomatic. However some of them may present with chest pain, syncope, heart failure and sudden death. Anomalous left anterior descending artery arising from right coronary artery is a very rare coronary anomaly.