A 74-year-old male was referred to our department due to a mobile solid mass of 10 mm in diameter on the left ventricular interior wall just below the posterior leaflet of the mitral valve. Mild mitral regurgitation and moderate tricuspid regurgitation were also detected. A high serum level of IL-6 was detected(33.0 pg/ml), and myxoma was suspected. The tumor, which was bright yellowish brown with a partly jelly-like surface, was successfully removed surgically through the mitral valve under cardiopulmonary bypass. Pathological findings of the mass was papillary fibroelastoma. Papillary fibroelastoma derived from the left ventricular wall is very rare.
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