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sarcoma |
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sarcoma (särkō`mə), highly malignant tumor arising in connective- and muscle-cell tissue. It is the result of oncogenes (the cancer causing genes of some viruses) and proto-oncogenes (cancer causing genes in human cells). It may affect bone, cartilage, blood vessels, lymph nodes, and skin. See cancer cancer, in medicine, common term for neoplasms, or tumors, that are malignant. Like benign tumors, malignant tumors do not respond to body mechanisms that limit cell growth. ..... Click the link for more information. ; neoplasm neoplasm or tumor, tissue composed of cells that grow in an abnormal way. Normal tissue is growth-limited, i.e., cell reproduction is equal to cell death. ..... Click the link for more information. . sarcoma Pathol a usually malignant tumour arising from connective tissue sarcoma [sär′kō·mə] (medicine) A malignant tumor arising in connective tissue and composed principally of anaplastic cells that resemble those of supportive tissues. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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Eight months postoperatively, 1 of the 2 patients experienced a recurrence of the sarcomatous component of the tumor, and he underwent a total laryngectomy. Sarcomatous (or sarcomatoid) mesothelioma (15-20%) may in turn simulate sarcomas originating from connectival tissue (e. Sarcomatous change in a previously benign osteofibroma in the maxillary sinus. |
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