Single left coronary artery and coronary sinus opening anomaly in a patient presenting with cardiac symptoms.

A single left coronary artery is an extremely rare congenital anomaly that is commonly associated with other congenital cardiac malformations. We present a case involving a single left coronary artery and coronary sinus anomaly demonstrated on coronary angiography and multidetector computed-tomography angiography. To the best of our knowledge, this rare combination has not been reported previously.