Fig. 3

Different variations of anomalous right superior pulmonary vein. (a) Axial image at the level of the main pulmonary artery. Right superior pulmonary vein (RSPV) draining into the superior vena cava (SVC) only (arrow). No sinus venosus defect was demonstrated. (b) Axial oblique CT. RSPV with a connection to the superior vena cava/right atrium (SVC/RA) confluence (arrow), but then continuing to drain into the left atrium (arrowhead). No direct sinus venosus defect. The right ventricle is dilated. (c) Axial oblique CT. RSPV draining into the SVC/RA confluence (white arrow) with a superior sinus venosus defect (black arrowhead) and right ventricular dilatation. (d) Axial oblique CT image. Anomalous RSPV is seen draining into the SVC (white arrow). Superior sinus venosus defect is demonstrated (black arrow) as well as an atrial secondum defect (black arrowhead)