Table 1.
Behavior | Metastasis | Size, cm | Muscularis propria invasion | Differentiation | Angio-invasion | Ki-67, % | Hormonal index |
---|---|---|---|---|---|---|---|
WHO criteria, gastrointestinal | |||||||
Benign | − | ≤1 | − | Well | − | <2 | − |
Benign/low-grade malignant | − | 1–2 | − | Well | ± | <2 | − |
Low-grade malignant | + | >2 | + | Well | + | 2–20 | + |
High-grade malignant | + | Any | + | Poorly | + | >20 | − |
WHO criteria, pancreas | |||||||
Benign | − | ≤1 | − | Well | − | <2 | − |
Benign/low-grade malignant | − | 1–2 | − | Well | ± | <2 | ± |
Low-grade malignant | + | >4 | + | Well | + | 2–20 | ± |
High-grade malignant | + | Any | + | Poorly | + | >20 | − |