NCIt related terms : Malignant carcinoid tumor of the midgut, unspecified;
NCIt definition : A well-differentiated, intermediate-grade neuroendocrine neoplasm that arises from
the jejunum, ileum, proximal colon, or appendix. The mitotic count is 2-20 per 2 mm2
and/or the Ki-67 index is 3 to 20%.;