Atrial myxoma.
D000328:Adult; D004452:Echocardiography; D005260:Female; D006325:Heart Atria / Q000601:surgery*; D006338:Heart Neoplasms / Q000175:diagnosis / Q000503:physiopathology / Q000601:surgery*; D006347:Heart Sounds; D006439:Hemodynamics; D006801:Humans; D008297:Male; D008875:Middle Aged; D009232:Myxoma / Q000175:diagnosis / Q000503:physiopathology / Q000601:surgery*