Table 2.
Immunohistochemical findings of ovarian and urachal tumors
| Primary Antibody | Ovarian tumor | Urachal tumor |
|---|---|---|
| CK7 | Negative | Negative |
| CK20 | Diffusely positive | Diffusely positive |
| CDX2 | Diffusely positive | Diffusely positive |
| CD15 | Diffusely positive | Diffusely positive |
| 34βE12 | Focally positive | Focally positive |
| β-catenin | Membranous expression | Membranous expression |
| MUC1 | Focally positive | Focally positive |
| MUC2 | Diffusely positive | Diffusely positive |
| MUC5AC | Diffusely positive | Diffusely positive |
| MUC6 | Negative | Negative |