Table 2 CSF1 expression by IHC in giant cell-rich tumors and tumor-like lesions of the bone and soft tissue
Histological type | Total (n) | CSF1-positive (n) | Percent (%) |
|---|---|---|---|
Tenosynovial giant cell tumor | 65 | 50 | 77 |
Localized type | 44 | 35 | 79.5 |
Diffuse type | 20 | 15 | 75.0 |
Malignant | 1 | 0 | 0 |
Giant cell tumor of bone | 10 | 0 | 0 |
Aneurysmal bone cyst | 3 | 0 | 0 |
Giant cell reparative granuloma | 2 | 0 | 0 |
Undifferentiated pleomorphic sarcoma | 10 | 0 | 0 |
Leiomyosarcoma | 10 | 0 | 0 |
Myxofibrosarcoma | 10 | 0 | 0 |