Table 1. Grading of NENs as proposed by ENETS.
| Grade | Ki-67 (%) | Mitoses per 10 HPF |
|---|---|---|
| G1 |
⩽2 |
<2 |
| G2 |
3–20 |
2–20 |
| G3 | >20 | >20 |
Abbreviations: ENET=The European Neuroendocrine Tumour Society; HPF=high power fields; NEN=Neuroendocrine neoplasm.
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