Atypical Fibroxanthoma
Supplemental Studies
Immunohistology
| CD10 | >95% |
| Procollagen 1 | 80-90% |
| CD99 | 73% |
| Keratin, including high molecular weight | Negative |
| P63 | Negative |
| S100 | Negative |
| HMB45, MelanA | Negative |
| Smooth muscle actin | 40% |
| Desmin | Rare |
| CD68 | 50% |
| CD10 | >95% |
| Procollagen 1 | 80-90% |
| CD99 | 73% |
| Keratin, including high molecular weight | Negative |
| P63 | Negative |
| S100 | Negative |
| HMB45, MelanA | Negative |
| Smooth muscle actin | 40% |
| Desmin | Rare |
| CD68 | 50% |