Gastrointestinal Neuroendocrine Tumor

Gastrointestinal neuroendocrine tumors (NENs) are slow-growing cancers that form in the digestive system, mainly in the rectum, small intestine, or appendix. These tumors can affect the production of hormones that help with digestion, leading to symptoms like abdominal pain, diarrhea, or constipation. Early diagnosis and treatment are important for managing gastrointestinal NENs. This page provides information on the symptoms, diagnosis, and treatment options for gastrointestinal neuroendocrine tumors.