Gastrointestinal carcinoid tumor is a disease in which cancerous cells develop in certain hormone-making cells of the digestive, or gastrointestinal system. The hormone-making cells, called neuroendocrine cells, help control the digestive process. Carcinoid tumors are formed when these cells undergo changes that cause them to grow too much.
Carcinoid tumors grow slowly, and many are found while they are still at an early stage.
The American Cancer Society estimates that about 2,500 gastrocarcinoid tumors are diagnosed in the United States each year. This information is not intended to be a substitute for individual medical advice in diagnosing or treating a health problem. Please consult with your health care provider about your health care concerns.