Table 2.
Pathological features of minor salivary tumors
| Variable | Frequency | % | |
|---|---|---|---|
| pT | pTx | 2 | 0 |
| pT1 | 246 | 55 | |
| pT2 | 94 | 21 | |
| pT3 | 20 | 4 | |
| pT4 | 88 | 20 | |
| pN | pNx | 320 | 71 |
| pN0 | 64 | 14 | |
| pN1 | 24 | 5 | |
| pN2 | 41 | 9 | |
| pN3 | 1 | 0 | |
| Margin | Positive | 126 | 28 |
| Close | 103 | 23 | |
| Negative | 214 | 48 | |
| NK | 7 | 2 | |
| PNI | Present | 167 | 37 |
| Absent | 123 | 27 | |
| NK | 160 | 36 | |
| LVI | Present | 53 | 12 |
| Absent | 214 | 48 | |
| NK | 183 | 41 | |
| Pathology risk group | Low | 233 | 52 |
| Intermediate | 113 | 25 | |
| High | 101 | 22 | |
| NK | 3 | 1 | |
| Pathological AJCC stage | I | 223 | 50 |
| II | 74 | 16 | |
| III | 33 | 7 | |
| IV | 118 | 26 | |
| NK | 2 | 0 | |
| Max size primary tumor (cm) | ≤ 1.9 | 219 | 49 |
| 2.0 – 3.9 | 144 | 32 | |
| 4.0 – 5.9 | 39 | 9 | |
| ≥ 6 | 10 | 2 | |
| NK | 38 | 8 | |
| Histology | Mucoepidermoid | 180 | 40 |
| Adenoid cystic | 141 | 31 | |
| PLGA | 54 | 12 | |
| Adenocarcinoma | 28 | 6 | |
| Myoepithelial | 10 | 2 | |
| Acinic Cell | 10 | 2 | |
| Epithelial-myoepithelial | 6 | 1 | |
| Other | 21 | 5 |
(NK Not known)