Left atrial myxoma.
D006328:Cardiac Catheterization; D005260:Female; D006325:Heart Atria; D006338:Heart Neoplasms / Q000150:complications / Q000175:diagnosis* / Q000601:surgery; D006801:Humans; D008875:Middle Aged; D008946:Mitral Valve Stenosis / Q000150:complications; D009232:Myxoma / Q000150:complications / Q000175:diagnosis* / Q000601:surgery; D011651:Pulmonary Artery / Q000000981:diagnostic imaging; D011859:Radiography