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tumor |
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tumor: see 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. . tumour (US), tumor Pathol a. any abnormal swelling b. a mass of tissue formed by a new growth of cells, normally independent of the surrounding structures tumor [′tü·mər] (medicine) Any abnormal mass of cells resulting from excessive cellular multiplication. 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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At the other extreme are testicular Leydig cell tumors in the F344/N rat. For example, the F344/N rat typically used by the NTP has high background incidences of testicular Leydig cell tumors and mononuclear cell leukemia, along with unresolved issues about declining fertility, sporadic seizures, and chylothorax (accumulation of lymphatic fluid in the pleural cavity, which can result from lymphoma). |
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