Table 4.
Histopathological results
| Variable | Modified CROSS (n = 36) |
|---|---|
| Pathologic tumor stage | |
| ypT0 | 13 (36.1) |
| ypT1 | 2 (5.6) |
| ypT2 | 6 (16.7) |
| ypT3 | 15 (41.7) |
| ypT4a | 0 |
| Pathologic nodal stage | |
| ypN0 | 22 (61.1) |
| ypN1 | 9 (25) |
| ypN2 | 3 (8.4) |
| ypN3 | 2 (5.6) |
| Tumor grading | |
| Well differentiated (G1) | 0 |
| Moderately differentiated (G2) | 13 (36.1) |
| Poorly differentiated (G3) | 10 (27.8) |
| Surgical margin status | |
| Clear | 35 (97.2) |
| Microscopically involved (R1) | 1 (2.8) |
| Macroscopically involved (R2) | 0 |
| Tumor regression grade (Mandard) | |
| TRG 1 | 13 (36.1) |
| TRG 2 | 13 (36.1) |
| TRG 3 | 7 (19.4) |
| TRG 4 | 3 (8.3) |
Values in parentheses are percentages; modified CROSS, neoadjuvant radiochemotherapy
TRG Mandard tumor regression grade