Fig. 1

Immunohistochemical expression of PAX8 among the different histopathological cancer types and grades. The immunohistochemical expression of PAX-8 is shown as a yellowish-brown or brown staining of the nucleus. a Well differentiated SCC (negative); b Metastatic adenocarcinoma (negative). c Poorly differentiated SCC (positive); d Moderately differentiated SCC (positive); e Endometrium adenocarcinoma (positive); f Ovarian mucinous cystadenocarcinoma (positive); g Endocervical adenocarcinoma (positive); and h endometroid adenocarcinoma (positive)