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Risk stratification of gastrointestinal stromal tumors
| Mitotic rate | Tumor size (cm) | Stomach | Jejunum/ Ileum | Duodenum | Rectum |
| ≤ 5/50 HPF | ≤ 2 | None | None | None | None |
| > 2, ≤ 5 | Very low | Low | Low | Low | |
| > 5, ≤ 10 | Low | Moderate | High | High | |
| > 10 | Moderate | High | |||
| > 5/50 HPF | ≤ 2 | None | High | NA | High |
| > 2, ≤ 5 | Moderate | High | High | High | |
| > 5, ≤ 10 | High | High | High | High | |
| > 10 | High | High |
Originated from [54], with permission. HPF: High-power fields; NA: Not available.
