Ann Pediatr Card Close
 

Figure 3: Although free edge of the valve commissure generally forms a smooth arch (blue and red arrows), there may be a small projection of leaflet tissue, the "miniscallop" or commissural cusp (white arrow), in the free edge of the commissure. The blue arrow points to the anteroseptal commissure, the red arrow to the anteroposterior commissure, and the white arrow to the posteroseptal commissure. A: Anterior leaflet, P: Posterior leaflet, S: Septal leaflet. Right atrial view

Figure 3: Although free edge of the valve commissure generally forms a smooth arch (blue and red arrows), there may be a small projection of leaflet tissue, the