NCIt definition : A well differentiated, low grade neuroendocrine neoplasm that arises from the stomach.
The vast majority of cases arise from the corpus-fundus region. The mitotic count
is less than 2 per 10 HPF and/or the Ki67 index is equal to or less than 2 percent.
It may be associated with autoimmune chronic atrophic gastritis, multiple endocrine
neoplasia type 1, or it may be sporadic.;