Carcinoma

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New mechanism of antitumor action identified

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False-positive mammography results are common

(HealthDay)—For women undergoing digital mammography screening, false-positive results are common, especially among younger women and those with risk factors, according to research published online Jan. 12 in the Annals ...

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Carcinoma (Gk. karkinos, or "crab", and -oma, "growth") is the medical term for the most common type of cancer occurring in humans. Put simply, a carcinoma is a cancer that begins in a tissue that lines the inner or outer surfaces of the body, and that generally arises from cells originating in the endodermal or ectodermal germ layer during embryogenesis. More specifically, a carcinoma is tumor tissue derived from putative epithelial cells whose genome has become altered or damaged to such an extent that the cells become transformed, and begin to exhibit abnormal malignant properties.

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