Minireviews
Copyright ©The Author(s) 2025.
World J Clin Oncol. Aug 24, 2025; 16(8): 108906
Published online Aug 24, 2025. doi: 10.5306/wjco.v16.i8.108906
Table 1 2019 World Health Organization Classification and grading criteria for colorectal neuroendocrine neoplasms
Category
Subtype
Differentiation
Grade
Ki67, %
Mitotic rate (/10HPF)
NETNET G1WellG1< 3< 2
NET G2WellG23-202-20
NET G3WellG3> 20> 20
NECSmall cellPoorG3> 20> 20
Large cellPoorG3> 20> 20
MiNENWell/poorG1–G3AnyAny