Copyright
©The Author(s) 2023.
World J Transl Med. Aug 31, 2023; 11(1): 1-8
Published online Aug 31, 2023. doi: 10.5528/wjtm.v11.i1.1
Published online Aug 31, 2023. doi: 10.5528/wjtm.v11.i1.1
Table 1 World Health Organization 2022 classification of epithelial neuroendocrine neoplasms for neoplasms for gastrointestinal, and pancreaticobiliary tract
| Neuroendocrine neoplasms | Classification | Diagnostic criteria |
| Well differentiated neuroendocrine tumor (NET) | NET, grade 1 | < 2 mitoses/2 mm2 and/or Ki67 < 3% |
| NET, grade 2 | 2-20 mitoses/2 mm2 and/or Ki67 3-20% | |
| NET, grade 3 | > 20 mitoses/2 mm2 and/or Ki67 > 20% | |
| Poorly differentiated neuroendocrine carcinoma (NEC) | Small cell NEC | > 20 mitoses/2 mm2 and/or Ki67 > 20% (often > 70%), and small cell cytomorphology |
| Large cell NEC | > 20 mitoses/2 mm2 and/or Ki67 > 20% (often > 70%), and large cell cytomorphology |
- Citation: Malladi UD, Chimata SK, Bhashyakarla RK, Lingampally SR, Venkannagari VR, Mohammed ZA, Vargiya RV. Duodenal neuroendocrine tumor-tertiary care centre experience: A case report. World J Transl Med 2023; 11(1): 1-8
- URL: https://www.wjgnet.com/2220-6132/full/v11/i1/1.htm
- DOI: https://dx.doi.org/10.5528/wjtm.v11.i1.1