Table 5.
Tumor response after preoperative chemoradiotherapy (n = 76).
| n (%) | |
|---|---|
| Pathologic complete response | |
| Yes | 24 (31.6) |
| No | 52 (68.4) |
| Tumour regression grade | |
| 0 | 26 (34.2) |
| 1 | 31 (40.8) |
| 2 | 15 (19.7) |
| 3 | 4 (5.3) |
| ypT 0–2 versus ypT 3–4 | |
| ypT 0–2 | 46 (60.5) |
| ypT 3–4 | 30 (39.5) |
| Pathologic T stage | |
| Downstaging | 54 (71.1) |
| Stable | 19 (25.0) |
| Progressive | 3 (3.9) |
| Pathologic N stage | |
| Downstaging | 43 (56.8) |
| Stable | 31 (40.8) |
| Progressive | 2 (2.4) |
| Pathologic TNM stage | |
| Downstaging | 55 (72.4) |
| Stable | 21 (27.1) |
| Progressive | 0 (0) |
ypT, the tumor (T) stage has been determined after neoadjuvant therapy; TNM, a cancer staging system that describes the characteristics of the tumor (T) and the presence of any lymph nodes metastases (N) or distant organ metastases (M).