A gastrointestinal carcinoid tumor is disease that structures in the covering of the gastrointestinal tract. The gastrointestinal (GI) tract is a piece of the body's stomach related framework. It assists with processing food, takes supplements (nutrients, minerals, sugars, fats, proteins, and water) from food to be utilized by the body and assists go with squandering material out of the body. The GI tract is comprised of these and different organs: Gastrointestinal carcinoid tumors structure from a particular sort of neuroendocrine cell (a kind of cell that resembles a nerve cell and a hormone - making cell). These cells are dispersed all through the chest and midsection yet most are found in the GI tract. Neuroendocrine cells make hormones that help control stomach related juices and the muscles utilized in moving food through the stomach and digestive organs. A GI carcinoid tumor may likewise make hormones and discharge them into the body. GI carcinoid tumors are uncommon and most become gradually. The vast majority of them happen in the small digestive system, rectum, and index. Now and then more than one tumor will frame. Having a family ancestry of different endocrine neoplasia type 1 (MEN1) disorder or neurofibromatosis type 1 (NF1) condition. Having certain conditions that influence the stomach's capacity to make stomach corrosive, for example,

atrophic gastritis,

noxious paleness, or

Zollinger-Ellison disorder.