A summary of the more common primary diseases of the cardiac valves.

Valve Primary diseases Congenital vs. acquired Incidence

Mitral valve endocardiosis
endocarditis
dysplasia
acquired
acquired
congenital
common
rare
uncommon

Tricuspid valve endocardiosis
endocarditis
dysplasia
acquired
acquired
congenital
relatively common
very rare
uncommon

Aortic valve endocarditis
stenosis
acquired
congenital
uncommon
common

Pulmonic valve stenosis congenital relatively common