digestive system neuroendocrine tumor, grade 1/2 small intestine neuroendocrine tumor, well differentiated, low or intermediate grade small intestinal well differentiated endocrine tumour small intestinal NET UMLS:C3272528 MONDO:0002995 small intestine neuroendocrine tumour small intestinal well differentiated endocrine tumor/carcinoma GARD:0023316 small intestinal neuroendocrine tumor NCIT:C96061 carcinoid tumour of small intestine carcinoid tumor of small intestine small intestine neuroendocrine tumor A well differentiated, low or intermediate grade tumor with neuroendocrine differentiation that arises from the small intestine. small intestinal neuroendocrine tumour MEDGEN:474161 small intestinal well differentiated endocrine tumor small intestine neuroendocrine neoplasm