Clinico-histopathologic findings according to the surgical margin status
| Insecure Margin (n = 16) | Negative Margin (n = 13) | P Value | |
|---|---|---|---|
| Age (median, range) (yr) | 63, 45–80 | 60, 38–78 | .345 |
| Sex (female:male) | 0:16 | 3:10 | .078 |
| cT category (No., %) | .164 | ||
| cT1 | 1, 6.3% | 4, 30.8% | |
| cT2 | 14, 87.5% | 9, 69.2% | |
| cT3 | 0, 0% | 0, 0% | |
| cT4 | 1, 6.3% | 0, 0% | |
| cN category (No., %) | .422 | ||
| cN0 | 1, 6.3% | 2, 15.4% | |
| cN1 | 15, 93.8% | 11, 84.6% | |
| pT category (No., %) | .202 | ||
| pT1 | 2, 12.5% | 5, 38.5% | |
| pT2 | 13, 81.3% | 8, 61.5% | |
| pT3 | 0, 0% | 0, 0% | |
| pT4 | 1, 6.3% | 0, 0% | |
| pN category (No., %) | .625 | ||
| pNx | 1, 6.3% | 1, 7.7% | |
| pN0 | 1, 6.3% | 1, 6.3% | |
| pN1 | 12, 75.0% | 10, 76.9% | |
| pN2 | 2, 12.5% | 1, 7.7% | |
| Histopathologic differentiation (No., %) | .310 | ||
| Well | 2, 12.5% | 0, 0% | |
| Moderate | 5, 31.3% | 8, 61.5% | |
| Poor | 4, 25.0% | 2, 15.4% | |
| Not applicablea | 5, 31.3% | 3, 23.1% | |
| Positive LVI (No., %) | 8, 50.0% | 5, 38.5% | .705 |
| Positive perineural invasion (No., %) | 2, 12.5% | 0, 0% | .359 |
| Treatment technique (No., %) | .485 | ||
| TORS alone | 5, 31.3% | 6, 46.2% | |
| TORS+adjuvant radiation | 4, 25.0% | 4, 30.8% | |
| TORS+adjuvant chemoradiation | 7, 43.8% | 3, 23.1% |
Note—LVI indicates lymphovascular invasion.
↵a No pathologic statement of the histopathologic differentiation.