title: [A case of left atrial ball thrombus associated with mitral stenosis].
mesh_terms: D000368:Aged; D005112:Extracorporeal Circulation; D005260:Female; D006325:Heart Atria; D006331:Heart Diseases / Q000209:etiology / Q000601:surgery*; D006350:Heart Valve Prosthesis; D006801:Humans; D008943:Mitral Valve / Q000601:surgery; D008946:Mitral Valve Stenosis / Q000150:complications* / Q000601:surgery; D013927:Thrombosis / Q000209:etiology / Q000601:surgery*