PMC8452416_01
Surgical specimen from tricuspid valve repair. (a) Atrial aspect: cusps are glistening and dome-shaped (*). (b) Ventricular aspect: chordae are irregularly thickened and branched.
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fig1
The anatomical study of the native tricuspid valve showed glistening and dome-shaped cusps (Figure 1(a)) and irregularly thickened and branched chordae (Figure 1(b)).
Photomicrographs from tricuspid valve. (a, b) Myxomatous degeneration (*) and fibrosis (f) of the spongiosa layer. (c) Healed infarct (*) in papillary muscle (m).
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fig2
The histopathological examination of the tricuspid valve showed no signs of infection or vegetation nor disruption of strands (Figure 2(a)). A significant and diffuse mixomatous degeneration was observed in the leaflets (Figure 2(b)). A very small healed infarct in papillary muscle of unspecified origin was observed (Figure 2(c)).