| Pathological characteristics | No | % |
| Histopathologic subtype |
|
|
| Follicular | 19 | 11 |
| Papillary | 155 | 89 |
| Size of the tumor |
|
|
| Range (cm) | 2 - 7 |
|
| Median (cm) | 2.6 |
|
| <2 cm | 8 | 5 |
| 2 - 3 cm* | 92 | 53 |
| 3 - 4 cm | 53 | 30 |
| >4 cm | 21 | 12 |
| Capsular invasion |
|
|
| Absent | 120 | 69 |
| Present | 54 | 31 |
| Extra thyroid soft tissue invasion |
|
|
| Absent | 152 | 87 |
| Microscopic | 8 | 5 |
| Macroscopic** | 14 | 8 |