Table 1.
Clinicopathological and histological characteristics in the preoperative CRT and surgery‐alone groups
| Characteristics | Preoperative CRT group | Surgery‐alone group | P‐values |
|---|---|---|---|
| n | 43 | 49 | |
| Age (mean ± SD) | 55.9 ± 11.4 | 57.8 ± 9.7 | 0.38 |
| Gender (male:female) | 30:13 | 36:13 | 0.69 |
| cT (0:1:2:3:4) | 0:0:10:31:2 | 0:0:6:38:5 | 0.62 |
| cN (0:1,2) | 26:17 | 22:29 | 0.09 |
| pT (0:1:2:3:4) | 7:5:9:22:0 | 0:1:12:31:5 | 0.01>* |
| pN (0:1,2) | 30:13 | 26:23 | 0.10 |
| Lymphovascular invasion | 41.9% (18/43) | 71.4% (35/49) | 0.01>* |
| Perineural invasion | 18.6% (8/43) | 44.9% (22/49) | 0.01>* |
| Eosinophilia with nuclear atypia | 51.2% (22/43) | 8.2% (4/49) | 0.01>* |
| Mucous lake | 32.6% (14/43) | 16.3% (8/49) | 0.07 |
| Calcification | 27.9% (12/43) | 6.1% (3/49) | 0.01>* |
| Foreign body giant cells | 18.6% (8/43) | 2.0% (1/49) | 0.01>* |
*P < 0.05. cN, clinical N stage; CRT, chemoradiation therapy; cT, clinical T stage; pN, pathological N stage; pT, pathological T stage.