An opening snap recorded in a case of tumor of the left atrium.
D003937:Diagnosis, Differential; D006325:Heart Atria; D006338:Heart Neoplasms; D006801:Humans; D008946:Mitral Valve Stenosis / Q000175:diagnosis*; D009369:Neoplasms
HEART/neoplasms; MITRAL STENOSIS/differential diagnosis