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©The Author(s) 2021.
World J Clin Cases. Sep 26, 2021; 9(27): 7973-7985
Published online Sep 26, 2021. doi: 10.12998/wjcc.v9.i27.7973
Published online Sep 26, 2021. doi: 10.12998/wjcc.v9.i27.7973
Table 1 Classification of neuroendocrine neoplasms according to World Health Organization criteria
| Mitotic rate (mitoses/mm2) | Ki-67 index | Differentiation | |
| Neuroendocrine tumor, Grade 1 | < 2 | < 3% | Well |
| Neuroendocrine tumor, Grade 2 | 2-20 | 3%-20% | Well |
| Neuroendocrine tumor, Grade 3 | > 20 | > 20% | Well |
| Neuroendocrine carcinoma, small-cell type | > 20 | > 20% | Poor |
| Neuroendocrine carcinoma, large-cell type | > 20 | > 20% | Poor |
| Mixed neuroendocrine–non-neuroendocrine neoplasm | Variable | Variable | Variable |
- Citation: Köseoğlu H, Duzenli T, Sezikli M. Gastric neuroendocrine neoplasms: A review. World J Clin Cases 2021; 9(27): 7973-7985
- URL: https://www.wjgnet.com/2307-8960/full/v9/i27/7973.htm
- DOI: https://dx.doi.org/10.12998/wjcc.v9.i27.7973