Superior sinus venosus defect with partial anomalous pulmonary venous return in a patient with tetralogy of Fallot.

We report a case of a 2-year-old boy with tetralogy of Fallot-pulmonary atresia where CT angiography additionally demonstrated the presence of superior sinus venosus defect with partial anomalous pulmonary venous return. Our case highlights the role of CT angiography in the preoperative evaluation in patients with tetralogy of Fallot in identifying such uncommon anomalies, which would help avoid postoperative complications and re-exploration in these patients.