CTICasesUnrepaired Tricuspid Atresia
Imaging findings
CT angiogram shows tricuspid atresia with a large fat-filled right atrioventricular groove, a large atrial septal defect (ASD), ventricular septal defect (VSD), and dilated central pulmonary arteries with peripheral pruning (pulmonary hypertension). Brain MRI demonstrates a cerebral abscess.
Key takeaways
Tricuspid atresia is a congenital cardiac defect characterized by absence of the tricuspid valve, requiring an ASD and VSD for survival. Adults with unrepaired cyanotic heart disease are at high risk for brain abscesses due to right-to-left shunting bypassing the pulmonary capillary filter.
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