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Key echocardiographic findings in the case. Parasternal long axis demonstrating aortic leaflet malcoaptation (A, Solid Arrow) with severe aortic regurgitation (B, Dashed Arrow). Leaflets were incompletely visualized without clear evidence of quadricuspid morphology (C). Suprasternal notch view demonstrating holodiastolic flow reversal (D, Arrow Head) consistent with severe aortic regurgitation.
