Clinicopathological features of microsatellite instability (MSI) high carcinomas and the other cases
| Feature | MSI high (24) | MSI low (9) | MSI negative (31) |
|---|---|---|---|
| Results are mean (SD). | |||
| Lymphatic invasion: 0, no invasion; 1, mild invasion; 2, moderate invasion; 3, pronounced invasion. | |||
| Venous invasion: 0, no invasion; 1, mild invasion; 2, moderate invasion; 3, pronounced invasion (Japanese classification of colorectal carcinomas). | |||
| Lymphocytic infiltration, peritumoral Crohn's like reaction: conspicuous, ++ status; inconspicuous, − and + status. | |||
| Age (years) | 67.5 (13.8) | 67.3 (9.9) | 65.1 (12.4) |
| Dukes's class | |||
| A | 1 | 1 | 4 |
| B | 12 | 0 | 8 |
| C | 7 | 6 | 13 |
| D | 4 | 2 | 6 |
| Differentiation | |||
| Well | 9 | 8 | 18 |
| Moderate | 10 | 1 | 9 |
| Poor | 2 | 0 | 1 |
| Mucinous | 3 | 0 | 3 |
| Lymphatic invasion | |||
| 0–1 | 18 | 5 | 21 |
| 2–3 | 6 | 4 | 9 |
| Venous invasion | |||
| 0–1 | 21 | 7 | 22 |
| 2–3 | 3 | 2 | 8 |
| Lymphocytic infiltration | |||
| Conspicuous | 6 | 1 | 2 |
| Inconspicuous | 13 | 6 | 17 |