A malignant tumor that arises from epithelial cells, which line the internal and external surfaces of the body. Carcinomas are most commonly found in the lining of body organs, such as the breast, prostate, lung, stomach, or bowel. Most human cancers are carcinomas.
See Also Carcinoma of Unknown Primary
Kate Kretschmann
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Author Info: Kate Kretschmann, The Gale Group Inc., Gale, Detroit, Gale Encyclopedia of Cancer, 2002 |