Factors that increase the risk of carcinoid tumors include:

  • Older age. Older adults are more likely to be diagnosed with a carcinoid tumor than are younger people or children.
  • Sex. Women are more likely than men to develop carcinoid tumors.
  • Family history. A family history of multiple endocrine neoplasia, type I (MEN I), increases the risk of carcinoid tumors. In people with MEN I, multiple tumors occur in glands of the endocrine system.
Dec. 20, 2012