Mass lesions in the left atrium.
D000328:Adult; D003937:Diagnosis, Differential; D004617:Embolism / Q000175:diagnosis*; D005260:Female; D006325:Heart Atria; D006338:Heart Neoplasms / Q000175:diagnosis*; D006801:Humans; D008297:Male; D008875:Middle Aged; D008946:Mitral Valve Stenosis / Q000175:diagnosis*; D009232:Myxoma / Q000175:diagnosis*; D013927:Thrombosis / Q000175:diagnosis*