Giant left atrium.
D006332:Cardiomegaly / Q000000981:diagnostic imaging*; D004452:Echocardiography; D006325:Heart Atria / Q000000981:diagnostic imaging*; D006801:Humans; D008297:Male; D008875:Middle Aged; D008943:Mitral Valve / Q000000981:diagnostic imaging; D011859:Radiography