defined:

Any of the various types of cancerous tumors that form in the epithelial tissue, the tissue forming the outer layer of the body surface and lining the digestive tract and other hollow structures. Examples of this kind of cancer include, breast, lung, and prostate cancer.

explained:

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Dr. John Carpten, formerly of the National Human Genome Research Institute's Laboratory of Cancer Genetics, defines carcinoma.

related
terms:

cancer, prostate cancer

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