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Patient with mitral bioprosthetic valve and diagnosis of left atrium sarcoma. A low‐echogenic mass occupies almost entirely the left atrium. The color Doppler allows the identification of the contour line of the mass. TTE‐2D 4 chamber (top) and short axis (bottom) pre (left) and after (right) chemotherapy. After chemotherapy, the mass is markedly reduced in size and the color fills most of the left atrial cavity and the pulmonary veins
