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Immunohistochemistry results
| Antibody | Number of cases with positive reactions |
|---|---|
| Cytokeratin | 13/13 (100%) |
| CK5/6 | 13/13 (100%) |
| CK7 | 10/13 (77%) |
| CK20 | 2/13 (15%) |
| Epithelial membrane antigen (EMA) | 13/14 (93%) |
| p63 | 12/13 (92%) |
| CEA | 13/14 (93%) |
| Vimentin | 6/14 (43%) |
| CD117 | 5/14 (36%) |
| bcl-2 | 3/14 (21%) |
| Glial fibrillary acidic protein (GFAP) | 1/14 (7%) |
| Muscle specific actin (myoepithelial) | 0/14 (0%) |
| TTF-1 | 0/14 (0%) |
| S100 protein (myoepithelial) | 2/14 (14%) |
| p53 (4+, ~5%) | 6/14 (43%) |
| Ki67 (4+, >5%) | 3/14 (21%) |
