Left Circumflex Coronary Artery Arising as a Terminal Extension of Right Coronary Artery: an Extremely Rare Congenital Coronary Artery

Anomalous origin of one or more coronary arteries occurs in about 0.6-1.15 % of patients undergoing coronary angiography. In the present paper, we report a patient with an extremely rare congenital coronary artery anomaly, in whom the left circumflex artery arising as a terminal extension of the right coronary artery. The main stem and obtuse marginal branches of the circumflex artery were normal and well developed. To our knowledge, this is the second case of a coronary artery anomaly reported in the medikal literatür in which the left circumflex artery arises as a terminal extension of the right coronary artery.