CTICasesQuadricuspid Pulmonic Valve
Imaging findings
Gated cardiac CT angiography demonstrates a quadricuspid pulmonic valve containing four leaflets: two normal-looking anterior leaflets and two posterior leaflets with a thin commissure between them. The valve is fully patent in systole, but is associated with marked dilatation of the main pulmonary artery.
Key takeaways
Quadricuspid pulmonic valve is an extremely rare congenital cardiac anomaly that is typically asymptomatic and discovered incidentally. Like other bicuspid or quadricuspid semilunar valve anomalies, it is frequently associated with an underlying congenital arteriopathy that results in pulmonary artery aneurysm or dilatation, even in the absence of valvular stenosis.
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