CTICasesSinus venosus atrial septal defect
Imaging findings
Contrast-enhanced CT shows anomalous pulmonary veins from the right upper lobe draining directly into the superior vena cava, associated with a superior sinus venosus atrial septal defect and severe right ventricular and right atrial enlargement.
Key takeaways
Superior sinus venosus atrial septal defect is a congenital cardiac anomaly characterized by a defect in the interatrial septum near the superior vena cava junction, almost always associated with partial anomalous pulmonary venous return where the right upper pulmonary veins drain into the superior vena cava or right atrium.
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