CTICasesPatent ductus arteriosus
Imaging findings
Chest CT shows a dilated pulmonary artery, right ventricular hypertrophy, a small hypoplastic descending aorta, and a large communication between the pulmonary artery and the descending aorta (patent ductus arteriosus) containing calcification. Angiography and radiographs confirm successful percutaneous closure using an Amplatzer vascular plug.
Key takeaways
Patent ductus arteriosus is a congenital shunt that rarely remains undiagnosed until adulthood. Large shunts lead to chronic volume and pressure overload of the pulmonary circulation, causing pulmonary hypertension and right heart hypertrophy, and can lead to a hypoplastic descending aorta.
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