Figure 48d

Aortic valve viewed from above in aortitis. Bowing of the cusps incident to dilatation of the aorta leaves a triangular defect through which regurgitation occurs. The commissures are not fused.

Rapaport, E., MD, Rackley, C.E., MD, Cohn, L.H., MD, Aortic Valve Disease, Hurst's The Heart, 8th edition, p 1469.