Partial anomalous pulmonary venous return is a rare congenital defectthataffects one or more right or left-sided pulmonary veins. An association of this anomaly with sinus venosus atrial septal defect may also be seen. In this paper, we have reported an unique partial anomalous pulmonary venous return case associated with sinus venosus atrial septal defect discovered in an elderly woman who presented a right heart failure. Abbreviations: Interauricular communications (CIA) ; superior vena cava (SVC) ; Partial Anomalous Pulmonary Venous Return (PAPVR); Inte-atrial septum (AIS); atrial septal defect (ASD); sinus venosus atrial septal defect (SVASD).