CTICasesInferior Sinus Venosus Atrial Septal Defect
Imaging findings
CT angiogram and coronal reconstructions demonstrate a sinus venosus atrial septal defect located at the inferior aspect of the interatrial septum, close to the junction of the IVC, right atrium, and left atrium.
Key takeaways
Inferior sinus venosus defects are rare ASDs located at the junction of the IVC and the atria. They can present in adulthood and must be distinguished from superior sinus venosus defects and ostium secundum defects.
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