CTICasesSuperior sinus venosus ASD and PAPVR
Imaging findings
Chest radiograph shows balanced, increased pulmonary vascularity. CT demonstrates a superior sinus venosus atrial septal defect (ASD) and partial anomalous pulmonary venous return (PAPVR) of the right pulmonary veins draining into the superior vena cava (SVC).
Key takeaways
Superior sinus venosus ASD is classically associated with PAPVR of the right upper pulmonary veins to the SVC. The Warden procedure is a surgical technique used to baffle the anomalous pulmonary veins to the left atrium while reconstructing SVC drainage to the right atrium.
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