Absent Right Superior Vena Cava with Atrial Septal Defect and Unroofed coronary sinus

Abstract

The absence of the right superior vena cava (SVC) is usually associated with the presence of a left SVC. Here we’ll present a case with the absence of the right SVC and a persistent left SVC found in association with an ostium secundum atrial septal defect and unroofed coronary sinus