Aberrant Right Coronary Artery from the Left Coronary Sinus Presenting with Inferior Wall Myocardial Infarction.

Coronaries arise normally from the aortic sinus which consists of one anterior and two posterior cusps of which the right coronary artery (RCA) arises from the anterior cusp and the left coronary artery arises from the left posterior cusp. Abnormal origin of coronary arteries is very rare and counts for about 2.33% of prevalence and below 1% incidence and are comparatively very difficult to diagnose through routine investigations.