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a small, yellowish amino-acid and peptide-secreting tumor usually found in the gastrointestinal tract and lung.

carcinoid car·ci·noid (kär’sə-noid’)
A small tumor that secretes serotonin and is usually found in the gastrointestinal tract.


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  • Carcinoid-syndrome

    the systemic effects, including flushing, palpitations, diarrhea, and cramps, resulting from increased blood levels of serotonin secreted by a carcinoid.

  • Carcinoid tumor

    carcinoid tumor carcinoid tumor n. A small slow-growing neoplasm composed of islands of rounded cells of medium size, with moderately small vesicular nuclei. Also called argentaffinoma.

  • Carcinolytic

    carcinolytic carcinolytic car·ci·no·lyt·ic (kär’sə-nō-lĭt’ĭk) adj. Destructive to the cancer cells.

  • Carcinoma

    a malignant and invasive epithelial tumor that spreads by metastasis and often recurs after excision; cancer. Contemporary Examples Doctors now argue that too many diseases fall into the carcinoma diagnosis. You Don’t Actually Have Cancer Randi Hutter Epstein July 30, 2013 Historical Examples In men over fifty, the resemblance to carcinoma may be very close. […]

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