Is a carcinoid tumor cancer?

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Carcinoid (originally termed “karzinoide “ by a German pathologist) refers to the “carcinoma-like” feature of these tumors which tend to clinically behave like benign tumors, but have a malignant appearance when viewed under a microscope. Cancers in general are characterized by unregulated growth, tissue invasion, and ability to grow in distant sites of the body (metastasis). Since even very benign behaving carcinoid tumors have the ability to invade other tissues and metastasize to distant organs, they should be treated as low-grade cancers. In general, carcinoid tumors are well-differentiated, slow-growing, and behave in a fairly benign fashion; however, some carcinoid tumors are very aggressive and can spread to many other areas of the body.

Carcinoid tumors can secrete a variety of substances, including serotonin and histamine. Large amounts of these substances can cause flushing, diarrhea, wheezing, and heart valve dysfunction (“Carcinoid Syndrome”).

For more information go to:

  • http://endocrinediseases.org/neuroendocrine/neuroendocrine_background.shtml
  • http://endocrinediseases.org/neuroendocrine/bowel_carcinoids.shtml
  • http://endocrinediseases.org/neuroendocrine/pulmonary_carcinoid.shtml
  • http://endocrinediseases.org/neuroendocrine/gastric_carcinoid.shtml
  • http://www.cancer.org/cancer/gastrointestinalcarcinoidtumor/detailedguide/index

Continue Learning about Endocrine System

Endocrine System

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em also helps give your body the energy it needs to function properly. Endocrine glands secrete hormones into the bloodstream. Hormones are considered chemical messengers, coordinating your body by transferring information from one set of cells to another. Your endocrine system health can be affected by hormone imbalances resulting from impaired glands. A hormone imbalance can cause problems with bodily growth, sexual development, metabolism and other bodily functions. Endocrine system diseases or conditions include diabetes, growth disorders and osteoporosis.
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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.