Research Article
A Single Centre Analysis of Clinical Characteristics and Treatment of Endocrine Pancreatic Tumours
Table 1
WHO grading classification (2010) of pancreatic neuroendocrine tumours [
22].
| Low grade neuroendocrine tumour—G1 | <2 mitoses/10 HPF and/or ≤2% Ki-67 proliferation index |
| Intermediate grade neuroendocrine tumour—G2 | 2–20 mitoses/10 HPF and/or 3%–20% Ki-67 proliferation index |
| High grade neuroendocrine carcinoma—G3 | >20 mitoses/10 HPF and/or >20% Ki-67 proliferation index |
|
|
Alternative Ki-67 cut-off value, 5% and 20%, between G1/G2 and G2/G3, respectively.
|