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eCura system
| Weighted scores for risk factors | |
| Risk factors | Points |
| Lymphatic invasion | 3 |
| Lesion size >30 mm | 1 |
| Positive vertical margin | 1 |
| Venous invasion | 1 |
| Submucosal invasion ≥500 μm | 1 |
| Lymph node metastasis (LNM) risk groups | Points | Risk of LNM (%) | Cancer-specific 5-year survival (%) |
| Low | 0–1 | 2.5 | 99.6 |
| Intermediate | 2–4 | 6.7 | 96.0 |
| High | 5–7 | 22.7 | 90.1 |
