Table 1.
Clinicopathologic characteristics of thyroid cancer tissues included in the study.
| PD-L1 0% (n=20) |
PD-L1 ≥ 1% (n=13) |
P value1 | |
|---|---|---|---|
| Histology | 0.001 | ||
| WDPTC | 16 (84%) | 3 (16%) | |
| PDTC | 2 (100%) | 0 (0%) | |
| ATC | 2 (17%) | 10 (83%) | |
| ICAM1 Expression | 1.00 | ||
| >1% | 20 (100%) | 13 (100%) | |
| ICAM1 Pattern | 0.001 | ||
| Apical | 18 (86%) | 3 (14%) | |
| Circumferential | 2 (17%) | 10 (83%) | |
| Clinical Characteristics | |||
| Age | 46 (37 – 62) | 64 (38 – 83) | 0.10 |
| Male Sex | 5/20 (25%) | 2/13 (15%) | 0.68 |
| Tumor Size | 1.8 (1.2 – 4.2) | 3.5 (1.8 – 4.7) | 0.19 |
| Lymph Node Metastases | 14/18 (78%) | 4/7 (57%) | 0.36 |
| Distant Metastases | 3/20 (15%) | 7/13 (54%) | 0.03 |
| Lymphovascular Invasion | 9/19 (47%) | 8/11 (73%) | 0.26 |
| Gross Extrathyroidal Extension | 3/20 (15%) | 8/12 (67%) | 0.01 |
| BRAFV600E Mutation | 14/17 (82%) | 6/8 (75%) | 1.00 |
1
P values were determined by Fisher’s exact test