Digestive System Neuroendocrine Neoplasm

**Semantic type:** Neoplastic Process

**Definition:** A neoplasm with neuroendocrine differentiation arising from the digestive system. It includes neuroendocrine tumors (well-differentiated neuroendocrine neoplasms) and neuroendocrine carcinomas (poorly differentiated neuroendocrine neoplasms).

**Synonyms:** - Gastroenteropancreatic Neuroendocrine Neoplasm - Gastrointestinal Neuroendocrine Neoplasm - Gastrointestinal System Neuroendocrine Neoplasm