Quadricuspid aortic valve is an extremely rare congenital anomaly. In Quadricuspid aortic valve, the aortic valve has four distinct leaflets. The most common type A variant has four equal cusps. The most common presentation is aortic insufficiency. A 70-year-old woman and a 32-year-old man presented to our practice in a 3-month time span were described here.
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