Carcinoid Causes and Risk Factors

The cause of carcinoid tumors is unknown, but a genetic link for this type of cancer is suspected. Multiple endocrine neoplasia type 1 (MEN1) is a genetic disorder that increases the risk for neuroendocrine tumors, including carcinoids. Gastrointestinal conditions (e.g., peptic ulcer disease, pernicious anemia, atrophic gastritis, Zollinger-Ellison syndrome) increase the risk for carcinoid tumors of the GI tract.

Unlike other types of lung cancer, carcinoids of the respiratory tract are not related to smoking.

Publication Review By: Stanley J. Swierzewski, III, M.D.

Published: 14 Aug 1999

Last Modified: 03 Sep 2015