title: Case report: progressive myxomatous degeneration of the cardiac valves.
mesh_terms: D001021:Aortic Valve / Q000473:pathology* / Q000601:surgery; D001022:Aortic Valve Insufficiency / Q000209:etiology*; D006350:Heart Valve Prosthesis; D006801:Humans; D008297:Male; D008875:Middle Aged; D008943:Mitral Valve / Q000473:pathology* / Q000601:surgery; D008945:Mitral Valve Prolapse / Q000209:etiology*