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What causes a carcinoid tumor?

A carcinoid tumor is caused by a mutation of the DNA in a cell. Typically this is a cell that produces hormones as part of the neuroendocrine system, usually in the gastrointestinal tract. The cells begin to multiply uncontrollably and form a mass. This mass, or tumor, tends to grow more slowly than other cancers. Carcinoids are also known as neuroendocrine tumors and neuroendocrine cancers.

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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.