Cardiac failure without cardiomegaly.
D000686:Amyloidosis / Q000473:pathology*; D006332:Cardiomegaly; D009202:Cardiomyopathies / Q000473:pathology*; D006333:Heart Failure / Q000473:pathology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D009206:Myocardium / Q000473:pathology*