Figure 3.

Immunohistochemical analysis of HNF-1β protein expression in surgically resected epithelial ovarian cancers. Immunohistochemistry on paraffin-embedded samples of clear cell (A, case 26; B, case 8; C, case 15), serous (D, case 35; E, case 59), endometrioid (F, case 18), and mucinous (G, case 81) adenocarcinomas of the ovary was performed with an antibody against HNF-1β. Ovarian endometriosis (H) and normal ovarian surface epithelium (I) were also immunostained with the same antibody. CCCs had strong nuclear staining for HNF-1β. Original magnifications: ×200 (A–H); ×400 (I).