Nodules of semilunar cusps
Noduli valvularum semilunarium
- Eponym: Morgagni
Definition
Each cusp of aortic valve is thin, pocket-shaped, and attached along its convex border to the fibrous aortic annulus. The free edge of each cusp faces the lumen of the aorta and contains a central thickening called the nodule of semilunar cusps (nodulus valvulae semilunaris). On either side of the nodule is a thin crescentic portion known as the lunule of semilunar cusps.
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