Absent right coronary artery: A case of single coronary artery or congenital ostial atresia?

Abstract

Atresia of the right coronary artery ostium is a rare anatomic variant of the coronary circulation. It is often difficult to differentiate from single coronary artery. Its presence unassociated with any other anomaly has never been described in an adult individual. We report this unusual anomaly and discuss its anatomical and pathophysiological significance and possible ways to differentiate from single coronary artery.

Keywords: Coronary artery anomaly; Coronary artery atresia; Intercoronary communication; Single coronary artery.