carcinoid (redirected from carcinoids)

carcinoid /car·ci·noid/ (kahr´si-noid) a yellow circumscribed tumor arising from enterochromaffin cells, usually in the gastrointestinal tract; the term is sometimes used to refer specifically to the gastrointestinal tumor (argentaffinoma) .

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car·ci·noid (kärs-noid)

n.

A small, slow-growing, benign or malignant tumor, usually in the gastrointestinal tract, that is composed of islands of rounded cells with small vesicular nuclei and secretes serotonin. Also called argentaffinoma.

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carcinoid

a tumor of the gastrointestinal tract formed from the endocrine (argentaffin) cells of the mucosal lining of a variety of organs including the stomach and intestine. In dogs they occur in the duodenum, colon and rectum, producing the carcinoid syndrome. Called also argentaffinoma, argentaffin tumor.

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goblet-cell carcinoid

a rare tumor recorded in a dog; more common in human appendix; has characterisitics of carcinoid and adenocarcinoma. Called also adenocarcinoid.

hepatic carcinoid

a rare tumor originating from neuroectodermal tissue in the liver.