Overview

Carcinoid tumors are a type of slow-growing cancer that can arise in several places throughout your body. Carcinoid tumors, which are one subset of tumors called neuroendocrine tumors, usually begin in the digestive tract (stomach, appendix, small intestine, colon, rectum) or in the lungs.

Carcinoid tumors often don't cause signs and symptoms until late in the disease. Carcinoid tumors can produce and release hormones into your body that cause signs and symptoms such as diarrhea or skin flushing.

Treatment for carcinoid tumors usually includes surgery and may include medications.

Carcinoid tumor care at Mayo Clinic

Dec. 03, 2015
References
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  3. Feldman M, et al. Neuroendocrine tumors. In: Sleisenger and Fordtran's Gastrointestinal and Liver Disease: Pathophysiology, Diagnosis, Management. 10th ed. Philadelphia, Pa.: Saunders Elsevier; 2016. http://www.clinicalkey.com. Accessed Aug. 5, 2015.
  4. Goldman L, et al., eds. Neuroendocrine tumors and the carcinoid syndrome. In: Goldman-Cecil Medicine. 25th ed. Philadelphia, Pa.: Saunders Elsevier; 2016. http://www.clinicalkey.com. Accessed Aug. 28, 2015.
  5. Gastrointestinal carcinoid tumors treatment (PDQ). National Cancer Institute. http://www.cancer.gov/types/gi-carcinoid-tumors/patient/gi-carcinoid-treatment-pdq. Accessed Aug. 28, 2015.
  6. AskMayoExpert. Neuroendocrine cancers of the gastrointestinal tract. Rochester, Minn.: Mayo Foundation for Medical Education and Research; 2014.