Massive left atriomegaly.
D006332:Cardiomegaly / Q000175:diagnosis / Q000209:etiology* / Q000473:pathology; D003937:Diagnosis, Differential; D006325:Heart Atria; D006801:Humans; D008946:Mitral Valve Stenosis / Q000150:complications*; D013902:Radiography, Thoracic; D012214:Rheumatic Heart Disease / Q000150:complications*