A Case of Single Coronary Artery Originating from Left Aortic Sinus

ABSTRACT

An isolated single coronary artery from the left aortic sinus is one of rare congenital coronary anomalies. This anomaly was detected during elective coronary angiogram in a 44 year-old male patient with atypical chest pain. Treadmill exercise test demonstrated 1 mm horizontal depression at stage IV and the test was terminated at the V stage due to chest pain. No myocardial ischemia was demonstrated on myocardial SPECT using 99mTc-tetrofosmin. Coronary angiogram revealed single coronary artery originating from left aortic sinus without any stenotic lesions.