digestive system neuroendocrine tumor, grade 1/2 https://www.malacards.org/card/gastrointestinal_neuroendocrine_tumor MONDO:0000386 alimentary part of gastrointestinal system neuroendocrine tumour UMLS:C2930967 DOID:0050626 digestive system neuroendocrine tumor alimentary part of gastrointestinal system neuroendocrine tumor malignant gastrointestinal neuroendocrine tumour MEDGEN:443945 NCIT:C95404 gastrointestinal system neuroendocrine tumour gastrointestinal NET gastrointestinal neuroendocrine tumour digestive system neuroendocrine tumour gastroenteropancreatic neuroendocrine tumour gastrointestinal neuroendocrine tumor A well-differentiated neuroendocrine tumor arising from the digestive system. It is characterized by the presence of cells with features similar to those of the normal endocrine cells of the digestive system. The neoplastic cells express immunohistochemical evidence of neuroendocrine differentiation and hormones. There is mild to moderate nuclear atypia and less than 20 mitoses per 10 HPF. It includes well-differentiated endocrine tumors or carcinoid tumors and well-differentiated endocrine carcinomas. GINET gastroenteropancreatic NET gastrointestinal neuroendocrine tumours ONCOTREE:GINET gastrointestinal neuroendocrine tumors digestive system well differentiated neuroendocrine tumour GARD:0022761 gastroenteropancreatic neuroendocrine tumor digestive system well differentiated neuroendocrine tumor digestive system NET malignant gastrointestinal neuroendocrine tumor gastrointestinal system neuroendocrine tumor digestive system neuroendocrine neoplasm