Ampulla of Vater Neuroendocrine Tumor G1NCIt concept
Preferred Label : Ampulla of Vater Neuroendocrine Tumor G1;
NCIt synonyms : Ampulla of Vater NET G1; Neuroendocrine Tumor G1 of the Ampullary Region;
NCIt definition : A well-differentiated, low-grade neuroendocrine neoplasm that arises from the ampulla
of Vater and the periampullary region. The mitotic count is less than 2 per 2 mm2
and the Ki-67 index is less than 3%.;