Table 1. Results of immunohistochemical analysis.
| Antibodies | Results | |
|---|---|---|
| SCC | PUS/MFH | |
| Cytokeratin AE1/AE3 | + | --/+ |
| Cytokeratin 5/6 | + | - |
| Cytokeratin 34βΕ12 | + | - |
| p63 | + | --/+ (second biopsy) |
| EMA | - | - |
| Vimentin | - | + |
| CD31 | - | --/+ |
| CD34 | - | - |
| Factor VIII | - | - |
| SMA | - | Rare positive cells |
| Desmin | - | Rare positive cells |
| Sarcomeric actin | - | Rare positive cells |
| Myoglobin | Not done | Not done |
| Neurofilaments | - | Rare positive cells |
| CD57 | - | - |
| S-100 | - | - |
| CD1a | - | - |
| CD68 | - | --/+ |
| Lysozyme | - | ++/- |
| Fascin | - | + |
| CD10 | - | ++/- |
| BCL-2 | - | --/+ |
| ALK1 | - | - |
| CD99 | - | + |
| β-Catenin | - | - |
| Ki67/MIB1 | 25% | 90% |