Fig. 3

Pathological findings of immunohistochemistry. A Cytokeratin 20. Magnification: 100 × , scale bar: 200 µm. B Cytokeratin 7. Magnification: 100 × , scale bar: 200 µm. C. CDX2. Magnification: 100 × , scale bar: 200 µm. D Estrogen receptor. Magnification: 100 × , scale bar: 200 µm. E Progesterone receptor. Magnification: 100 × , scale bar: 200 µm. F PAX8. Magnification: 100 × , scale bar: 200 µm. G p16. Magnification: 100 × , scale bar: 200 µm. H HPV. Magnification: 100 × , scale bar: 200 µm. I p53. Magnification: 100 × , scale bar: 200 µm. J PMS2. Magnification: 100 × , scale bar: 200 µm. K MSH6. Magnification: 100 × , scale bar: 200 µm