Partial anomalous pulmonary venous return of an uncommon type.

We report a rare case of complete anomalous venous return from the right lung to the supradiaphragmatic part of the inferior vena cava, associated with sinus venosus atrial septal defect. The defect was corrected with direct reimplantation of the anomalous venous trunk into the left atrium and direct suture of the ASD. A good operative result was obtained. As a great variety of associative patterns between partial APVR and ASD exists in literature, we outline the necessity of an accurate pre- and intra-operative diagnosis, in order to achieve the most satisfactory surgical result.