Digestive neuroendocrine tumors (DNETs) are rare (less than 1% of malignant tumors). They are a heterogeneous group of tumors with common functional and morphological characteristics. In practice, a distinction is made between endocrine tumors of the digestive tract, pancreatic endocrine tumors and hepatic endocrine tumors. The circumstances in which these tumors are discovered vary, depending on whether or not they are functional. Carcinoid syndrome...