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    • Carcinoid and Neuroendocrine Forums

      Neuroendocrine tumors arise from the neuroendocrine system, which are composed of cells that have features of both nerve cells and endocrine cells and are found though out the body. The term "carcinoid" tumor was first used in 1907 and remains in common use today and refers to a tumor arising from enterochromaffin cells, which are neuroendocrine cells in the gastrointestinal tract. Carcinoids usually secrete serotonin, histamine and other vasoactive substances, which can occasionally cause symptoms of flushing and diarrhea.    Since neuroendocrine tumors are derived from neuroendocrine tissue that is found in many different organs, neuroendocrine tumors can be found in any part of the body. However, the majority of neuroendocrine tumors occur in several locations in the abdomen.  In these forums, we invite your comments and questions about some common considerations.

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