CTICasesThrombus in Hypoplastic Aortic Root
Imaging findings
CT of a patient with hypoplastic left heart syndrome (HLHS) status post-Fontan shows a filling defect (thrombus) in the native, hypoplastic aortic root. Angiography confirmed embolization of this thrombus into the right coronary artery, causing acute myocardial infarction.
Key takeaways
In HLHS patients, the native hypoplastic aortic root has stagnant blood flow, predisposing to thrombus formation. This thrombus can embolize into the coronary arteries, presenting as acute chest pain and myocardial infarction.
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