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Immunohistochemistry findings
| Marker | Interpretation |
|---|---|
| Pan cytokeratin AE1/AE3 | Negative |
| SF-1 (steroidogenic factor 1) | Diffusely positive |
| Synaptophysin | Diffusely positive |
| Alpha inhibin | Focally positive |
| Melan A | Diffusely positive |
| PAX8 (paired-box gene) | Negative |
| EMA (epithelial membrane antigen) | Negative |
| Chromogranin | Negative |
| S100 protein | Positive in a few tumor cells |
| CD10 | Negative |
| Vimentin | Negative |
| Calretinin | Positive |
| Ki-67 protein | 6% |
| HMB45 (human melanoma black 45) | negative |
