osteosarcoma

/os'tee oh sahr koh"meuh/, n., pl. osteosarcomas, osteosarcomata /-meuh teuh/. Pathol.
a malignant tumor of the bone.
[1800-10; OSTEO- + SARCOMA]

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also called  osteogenic sarcoma 

      most common bone cancer, primarily affecting the long bones, particularly those in the knee, hip, or shoulder regions. The cause of osteosarcoma is unknown, but genetic factors and radiation therapy may be involved in its development. Osteosarcoma occurs more often in males than in females; most affected individuals are under age 30. Major symptoms include pain (intermittent at first, later severe and constant), swelling, limitation of joint motion, a high frequency of fractures (fracture), and eventually fever and general debilitation. Metastases (seeding of the malignancy in other parts of the body) occur early and spread particularly to the lungs (lung cancer). The long-term survival rate, which at one time was quite low, has risen to well over 50 percent with modern treatment, which includes surgical removal of the tumour and chemotherapy. Osteosarcoma that occurs after age 50 is frequently associated with Paget disease of bone; prognosis in this case is still quite poor.

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Universalium. 2010.

Look at other dictionaries:

  • Osteosarcoma — Classification and external resources Intermediate magnification micrograph of an osteosarcoma (center and right of image) adjacent to non malignant bone (left bottom of image). The top right of the image has poorly differentiated tumor. Osteoid… …   Wikipedia

  • osteosarcoma — m. oncol. Tumor maligno óseo formado por tejido conjuntivo maligno que produce metástasis pulmonar rápidamente. Suele producirse en la tibia y/o en el fémur de niños y adolescentes varones. El tratamiento se realiza con radioterapia,… …   Diccionario médico

  • Osteosarcoma — Os te*o*sar*co ma, n.; pl. {Osteosarcomata}. [NL. See {Osteo }, and {sarcoma}.] (Med.) A tumor having the structure of a sarcoma in which there is a deposit of bone; sarcoma connected with bone. [1913 Webster] …   The Collaborative International Dictionary of English

  • osteosarcoma — (de «osteo » y «sarcoma») m. Med. Sarcoma de los huesos …   Enciclopedia Universal

  • osteosarcoma — sustantivo masculino 1. Área: medicina Tumor maligno formado por tejido óseo …   Diccionario Salamanca de la Lengua Española

  • osteosarcoma — [äs΄tē ō sär kō′mə] n. pl. osteosarcomas, osteosarcomata [äs΄tē ō sär kō′mə tə] a common type of sarcoma of the bone characterized by rapid spreading, esp. to the lungs, and pain, swelling, etc. in the large, long bones …   English World dictionary

  • Osteosarcoma — En este artículo se detectó el siguiente problema: Requiere una revisión ortográfica y gramatical. Por favor, edítalo para mejorarlo, o debate en la discusión …   Wikipedia Español

  • Osteosarcoma — A cancer of the bone that is most common in children. Also called osteogenic sarcoma. * * * SYN: osteogenic sarcoma. parosteal o. low grade o. arising on the surface of bone without involvement of the underlying marrow, usually occurring as a… …   Medical dictionary

  • osteosarcoma — {{#}}{{LM O28444}}{{〓}} {{[}}osteosarcoma{{]}} ‹os·te·o·sar·co·ma› {{《}}▍ s.m.{{》}} Tumor maligno del tejido óseo. {{★}}{{\}}ETIMOLOGÍA:{{/}} Del griego ostéon (hueso) y sarcoma …   Diccionario de uso del español actual con sinónimos y antónimos

  • osteosarcoma — noun (plural mas; also osteosarcomata) Etymology: New Latin Date: circa 1826 a sarcoma derived from bone or containing bone tissue …   New Collegiate Dictionary

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