Malignant mesenchymoma of the heart

A case of a rare primary cardiac tumor in a 46-year-old woman is described. The tumor arose from the left atrium and was histologically composed of multiple mesenchymal elements of fibrosarcoma, rhabdomyosarcoma, chondrosarcoma, myosarcoma, and liposarcoma. Metastasis of this tumor occurred in the left femur, lung, and hilar lymph nodes after the second heart operation. Histogenesis of malignant mesenchymoma was considered with a survey of the literature.