Nonbacterial vegetations on the heart valves.
D004696:Endocarditis / Q000150:complications; D004697:Endocarditis, Bacterial / Q000209:etiology; D006330:Heart Defects, Congenital / Q000150:complications; D006349:Heart Valve Diseases / Q000209:etiology*; D006801:Humans; D012214:Rheumatic Heart Disease / Q000150:complications