title: Acute aortic valvular insufficiency due to isolated myxomatous degeneration.
mesh_terms: D000208:Acute Disease; D000368:Aged; D001021:Aortic Valve / Q000473:pathology; D001022:Aortic Valve Insufficiency / Q000209:etiology*; D006349:Heart Valve Diseases / Q000150:complications / Q000473:pathology; D006801:Humans; D008297:Male