Table 2.
Pathological features of enrolled patients.
| Characteristics of pathology | Results |
|---|---|
| Pathological types of thyroid neoplasms | |
| PTC | 372 (98.6%) |
| FTC | 4 (1.1%) |
| Not mentioned | 1 (0.3%) |
| Bilateral | |
| Unilateral lesion | 208 (55.2%) |
| Bilateral lesion | 158 (41.9%) |
| Not mentioned | 11 (2.9%) |
| Multifocality | |
| Yes | 166 (44.0%) |
| No | 206 (54.7%) |
| Without primary lesion in thyroid | 5 (1.3%) |
| Capsule invasion | |
| Yes | 191 (50.7%) |
| No | 122 (32.4%) |
| NA | 64 (16.9%) |
| Tumor size (cm), mean ± SD (range) | 1.4 ± 1.0 |
| Metastasis | |
| Yes | 319 (84.6%) |
| No | 56 (14.9%) |
| Not mentioned | 2 (0.5%) |
| Number of metastatic lymph nodes, mean ± SD (range) | 7.0 ± 6.8 |
| TNM staging (AJCC 8th edition) | |
| T | |
| Ia | 142 (37.7%) |
| Ib | 118 (31.3%) |
| II | 40 (10.6%) |
| IIIa | 3 (0.8%) |
| IIIb | 18 (4.8%) |
| Iva | 15 (4.0%) |
| IVb | 2 (0.5%) |
| NA | 39 (10.3%) |
| N | |
| 0 | 56 (14.9%) |
| Ia | 164 (43.5%) |
| Ib | 155 (41.1%) |
| NA | 2 (0.5%) |
PTC, thyroid papillary carcinoma; FTC, thyroid follicular carcinoma; TNM, tumor, node, metastasis; AJCC, American Joint Committee on Cancer; SD, standard deviation.