Figure 5.
Immunohistochemical features of the neoplastic cells
| Antibody Specificity | Cystic lining | Luminal cells | Abluminal Cells | Solid areas | Mesenchymal cells |
|---|---|---|---|---|---|
| CK7 | +++ | +++ | - | +++ | - |
| CK8 | - | ++ | - | - | - |
| CK19 | +++ | +++ | - | +++ | - |
| CK20 | - | - | - | - | - |
| Hmw CKs | +++ | - | +++ | - | |
| EMA | +++ | +++ | - | - | - |
| CEA(mono) | - | +++ | - | - | - |
| CEA (poly) | - | +++ | - | - | - |
| GFAP | - | - | +++ | +++ | - |
| S-100 | - | +++ | ++ | +++ | +++ |
| SMA | - | - | + | - | - |
| MSA | - | - | + | - | - |
| p63 | +++ | - | ++ | +++ | - |
| Vimentin | - | - | +++ | +++ |
Immunostaining was graded as (-) negative; (+) weakly positive; (++) moderately positive; (+++) strongly positive