Mucoid degeneration of heart valves: "blue valve syndrome".
D000368:Aged; D006328:Cardiac Catheterization; D003937:Diagnosis, Differential; D004562:Electrocardiography; D006025:Glycosaminoglycans / Q000378:metabolism; D006326:Heart Auscultation; D006333:Heart Failure / Q000209:etiology; D006349:Heart Valve Diseases / Q000150:complications / Q000175:diagnosis / Q000378:metabolism / Q000473:pathology*; D006651:Histocytochemistry; D006801:Humans; D008297:Male; D008853:Microscopy; D008943:Mitral Valve / Q000473:pathology; D008944:Mitral Valve Insufficiency / Q000175:diagnosis / Q000209:etiology; D009093:Mucus; D012214:Rheumatic Heart Disease / Q000175:diagnosis; D013194:Staining and Labeling
D006025:Glycosaminoglycans