[Endoscopic diagnosis of gastroenteropancreatic neuroendocrine tumors]

Gastroenteropancreatic endocrine tumors can be broadly divided into two groups: pancreatic endocrine tumors and carcinoid tumors. In both types of tumor, patients can present with a clinical syndrome related to hormone secretion by the tumor. Due to the location of these tumors, the various endoscopic techniques play a major role in their localization and histological and cytological confirmation, and even in their endoscopic resection. The present article describes the endoscopic procedures available for the localization and management of these tumors.