[Interpretation of the latest guidelines in the treatment of gastrointestinal neuroendocrine neoplasms].

Neuroendocrine neoplasms(NEN) is a rare group of tumors with gastrointestinal tract as one of the most common primary locations. The most commonly used guidelines are proposed by European Neuroendocrine Tumor Society (ENETS) and National Comprehensive Cancer Network(NCCN) respectively, while the management of gastrointestinal NEN is generally identical in these two guidelines. Surgery is still the sole curative method which should be considered as the first choice of locoregional NEN. Otherwise, 40% to 50% of patients manifests metastatic disease when diagnosed. Hence, somatostatin analogs, targeted drugs, chemotherapy, and peptide receptor radionuclide therapy should be used comprehensively, especially for unresectable lesions. Therapeutic decision making should be based on the tumor location, functional status, tumor grade, tumor stage, somatostatin receptor status and adverse effect of drugs, etc.