CTICasesSuperior Sinus Venosus ASD and PAPVR
Imaging findings
The patient appeared normal on routine inspection, but careful analysis of the pulmonary vessels revealed distention and a balanced distribution of pulmonary blood flow, suggestive of a left-to-right shunt. Targeted imaging identified a superior sinus venosus defect with partial anomalous pulmonary venous return (PAPVR) to the SVC.
Key takeaways
Subtle signs like distended pulmonary vasculature can be the key to identifying left-to-right shunts such as sinus venosus ASDs in adults. Meticulous assessment of vascular caliber relative to bronchial counterparts is a high-yield diagnostic technique.
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