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| Immunohistochemistry | Result |
|---|---|
| Vimentin | Positive |
| CD68 | Positive |
| P53 | Positive (about 80%) |
| Ki-67 | High (up to 50%) |
| SMA | Weakly positive |
| Pankeratin (AE1/AE3) | Negative |
| Desmin | Negative |
| S-100 protein | Negative |
| CD117 | Negative |
| CD34 | Negative |
| CD99 | Negative |
