Double right coronary artery

Many of the primary congenital coronary anomalies are hemodynamically insignificant. Here we report one such anomaly — a rare one, Double Right Coronary Artery. A 52-year-old woman underwent Coronary Angiogram prior to Mitral valve replacement. RCA injection showed filling of two separately originating RCAs, coursing towards the right atrio-ventricular groove. The superior RCA, after conus artery and 2 Right Ventricular branches, descended beyond the acute margin of the heart and terminated as Posterior Descending Coronary Artery (PDA). The inferior RCA, after one small RV branch ended at the crux, as PDA and a small Postero-lateral Branch. Both RCAs and the left coronary artery system were free of any disease.