Table 1: Risk of aggressive behavior (AFIP-Miettinen8).
| AFIP-Miettinen8 | |
| Group | Features |
| Very low, if any malignant potential | ≤ 2 cm and ≤ 5 mitotic index |
| Low malignant potential | gastric: > 2/≤ 10 cm and ≤ 5 mitotic index, ≤ 2 cm and > 5 mitotic index intestinal: > 2/≤ 5 cm and ≤ 5 mitotic index |
| Intermediate malignant potential | gastric: > 10 cm and ≤ 5 mitotic index, > 2/≤ 5 cm and > 5 mitotic index intestinal: > 5/≤ 10 cm and ≤ 5 mitotic index |
| High malignant potential | gastric: > 5 cm and > 5 mitotic index intestinal: > 10 cm or > 5 mitotic index |