a rare malignant tumour, usually of childhood, originating in, or showing the characteristics of, striated muscle. Pleomorphic rhabdomyosarcoma occurs in late middle age, in the muscles of the limbs. Embryonal rhabdomyosarcomas, affecting infants, children, and young adults, are classified as botryoid (in the vagina, bladder, ear, etc.), embryonal (most common in the head and neck, particularly the orbit); and alveolar (at the base of the thumb). The pleomorphic and alveolar types respond poorly to treatment; botryoid tumours are treated with a combination of radiotherapy, surgery, and drugs. The embryonal type, if treated at an early stage, can often be cured with a combination of radiotherapy and drugs (including vincristine, dactinomycin, and cyclophosphamide).

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  • Rhabdomyosarcoma — ICDO|8920|3 OMIM = MedlinePlus = 001429 eMedicineSubj = ent eMedicineTopic = 641 eMedicine mult = eMedicine2|ped|2005 MeshID = D012208A rhabdomyosarcoma is a type of cancer, specifically a sarcoma (cancer of connective tissues), in which the… …   Wikipedia

  • Rhabdomyosarcoma — A malignant tumor that starts in muscle. Rhabdomyosarcoma is primarily a childhood tumor and occurs most often in children under 5 years of age. Over 60% of cases show up before age 10. On rare occasions, rhabdomyosarcoma affects adults.… …   Medical dictionary

  • rhabdomyosarcoma — noun a highly malignant neoplasm derived from striated muscle • Syn: ↑rhabdosarcoma • Hypernyms: ↑sarcoma • Hyponyms: ↑embryonal rhabdomyosarcoma, ↑embryonal rhabdosarcoma, ↑alveolar rhabdomyosarcoma, ↑ …   Useful english dictionary

  • rhabdomyosarcoma — noun A cancerous tumor of skeletal muscle. Rhabdomyosarcoma, the most common primary malignant orbital tumor of childhood, has been classified histologically as embryonal, differentiated, or alveolar. Syn: rabdomyo sarcoma …   Wiktionary

  • rhabdomyosarcoma — Cancer that forms in the soft tissues in a type of muscle called striated muscle. Rhabdomyosarcoma can occur anywhere in the body …   English dictionary of cancer terms

  • rhabdomyosarcoma of prostate — a variety of embryonal rhabdomyosarcoma seen mainly in the prostates of young men; it is large and fleshy and may grow fast, filling the pelvis …   Medical dictionary

  • rhabdomyosarcoma — noun Etymology: New Latin, from rhabdo + my + sarcoma Date: 1898 a malignant tumor composed of striated muscle fibers …   New Collegiate Dictionary

  • rhabdomyosarcoma — Malignant tumour (sarcoma) derived from striated muscle …   Dictionary of molecular biology

  • rhabdomyosarcoma — /rab doh muy oh sahr koh meuh/, n., pl. rhabdomyosarcomas, rhabdomyosarcomata / meuh teuh/. Pathol. a malignant tumor made up of striated muscle tissue. [1895 1900; RHABDO + MYO + SARCOMA] * * * …   Universalium

  • rhabdomyosarcoma — rhab·do·myosarcoma …   English syllables

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