Myosarcoma (Subscribe)

A general term for a malignant neoplasm derived from muscular tissue. (Stedman, 25th ed)

Rhabdomyosarcoma (17): A malignant solid tumor arising from mesenchymal tissues which normally differentiate to form striated muscle. It can occur in a wide variety of sites. It is divided into four distinct types: pleomorphic, predominantly in male adults; alveolar ( RHABDOMYOSARCOMA, ALVEOLAR), mainly in adolescents and young adults; embryonal ( RHABDOMYOSARCOMA, EMBRYONAL), predominantly in infants and children; and botryoidal, also in young children. It is one of the most frequently occurring soft tissue sarcomas and the most common in children under 15. (From Dorland, 27th ed; Holland et al., Cancer Medicine, 3d ed, p2186; DeVita Jr et al., Cancer: Principles & Practice of Oncology, 3d ed, pp1647-9) OCOSH Code C04.557.450.590.550.660_BD_BN_CTS_MT_MS_RM