What causes carcinoid tumors?

Updated: Feb 12, 2019
  • Author: Cameron K Tebbi, MD; Chief Editor: Max J Coppes, MD, PhD, MBA  more...
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The etiology of carcinoid tumors is not known, but genetic abnormalities are suspected. Reported chromosomal abnormalities include changes in chromosomes, [18, 19] such as loss of heterogeneity, and numerical imbalances. The diagnosis is sometimes made because of unrelated findings, such as anemia, endocrine disease, or autoimmune disorders.

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