Table 1 Expression of PD-L1, PD-L2, and PD-1 in musculoskeletal tumors
Tumor | N | PD-L1 N (%) | PD-L2 N (%) | PD-1 N (%) | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
0 | 1+ | 2+ | 3+ | Positive | 0 | 1+ | 2+ | 3+ | Positive | 0 | 1+ | 2+ | 3+ | Positive | ||
Musculoskeletal tumor | 234 | 179 | 35 | 10 | 10 | 55 (23.5%) | 168 | 49 | 8 | 9 | 66 (28.2%) | 185 | 37 | 5 | 7 | 49 (20.9%) |
Giant cell tumor | 14 | 4 | 1 | 2 | 7 | 10 (71.4%) | 7 | 1 | 1 | 5 | 7 (50.0%) | 6 | 1 | 2 | 5 | 8 (57.1%) |
Osteosarcoma | 62 | 40 | 17 | 3 | 2 | 22 (35.5%) | 36 | 21 | 3 | 2 | 26 (41.9%) | 45 | 15 | 1 | 1 | 17 (27.4%) |
Synovial sarcoma | 127 | 107 | 16 | 3 | 1 | 20 (15.7%) | 101 | 22 | 2 | 2 | 26 (20.5%) | 103 | 21 | 2 | 1 | 24 (18.9%) |
Chondrosarcoma | 31 | 28 | 1 | 2 | 0 | 3 (9.7%) | 24 | 5 | 2 | 0 | 7 (22.6%) | 31 | 0 | 0 | 0 | 0 |
Conventional chondrosarcoma | 27 | 27 | 0 | 0 | 0 | 0 | 21 | 4 | 2 | 0 | 6 (22.2%) | 27 | 0 | 0 | 0 | 0 |
Dedifferentiated chondrosarcoma | 4 | 1 | 1 | 2 | 0 | 3 (75.0%) | 3 | 1 | 0 | 0 | 1 (25.0%) | 4 | 0 | 0 | 0 | 0 |