TABLE 3.
Histologic Characteristics by Mutation
| BRAF V600E | RAS | RET/PTC | PAX8-PPARγ | BRAFK601E | |
|---|---|---|---|---|---|
| Mean tumor size, cm | 1.7 ± 1.2 | 2.3 ± 1.6 | 2 ± 1.5 | 3.2 ± 1.6 | 2.4 ± 3.1 |
| Multifocal | 360 (56%) | 153 (47%) | 23 (63%) | 7 (44%) | 9 (75%) |
| Extrathyroidal extension | 327 (51%) | 15 (4.6%) | 18 (49%) | 0 | 0 |
| No. with CLND | 523 (81%) | 156 (48%) | 33 (89%) | 8 (50%) | 7 (58%) |
| CLNM | 286 (55%) | 16 (10%) | 23 (70%) | 0 | 0 |
| LLNM | 92 (14%) | 4 (1.2%) | 13 (35%) | 0 | 0 |
| Distant metastasis at presentation | 13 (2%) | 7 (2%) | 3 (8%) | 0 | 0 |
| TNM stage | |||||
| 1 | 56% | 67% | 57% | 69% | 100% |
| 2 | 4% | 15% | 8% | 13% | 0% |
| 3 | 32% | 13% | 22% | 19% | 0% |
| 4 | 9% | 3% | 14% | 0% | 0% |
CLND indicates Central compartment lymph node dissection.