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©The Author(s) 2022.
World J Gastroenterol. Sep 14, 2022; 28(34): 4943-4958
Published online Sep 14, 2022. doi: 10.3748/wjg.v28.i34.4943
Published online Sep 14, 2022. doi: 10.3748/wjg.v28.i34.4943
Table 1 2019 World Health Organization classification of neuroendocrine neoplasms of the gastrointestinal tract and hepatopancreatobiliary organs
| NENs | Differentiation | Grade | Mitotic rate | Ki-67 index % |
| NET, G1 | Well differentiated | Low | < 2 | < 3 |
| NET, G2 | Well differentiated | Intermediate | 2-20 | 3-20 |
| NET, G3 | Well differentiated | High | > 20 | > 20 |
| NEC, small cell type | Poorly differentiated | High | > 20 | > 20 |
| NEC, large cell type | Poorly differentiated | High | > 20 | > 20 |
| MiNEN | Well or poorly differentiated | Variable | Variable | Variable |
- Citation: Iabichino G, Di Leo M, Arena M, Rubis Passoni GG, Morandi E, Turpini F, Viaggi P, Luigiano C, De Luca L. Diagnosis, treatment, and current concepts in the endoscopic management of gastroenteropancreatic neuroendocrine neoplasms. World J Gastroenterol 2022; 28(34): 4943-4958
- URL: https://www.wjgnet.com/1007-9327/full/v28/i34/4943.htm
- DOI: https://dx.doi.org/10.3748/wjg.v28.i34.4943