Figure 1

Immunohistochemistry. TADG-15 is absent in normal ovarian surface epithelial cells (A, × 100). Positive TADG-15 staining is observed in serous (B, × 100), endometrioid (C, × 100), and clear cell adenocarcinoma (D, × 100). Negative control section showed no nonspecific staining (E, same tumour as shown in D, × 50).