WFDC2 and neoplasm: Serum tumor markers, such as beta human chorionic gonadotropin (β-HCG), alfa-fetoprotein (α-FP), Cancer Antigen 125 (Ca125), lactic dehydrogenase (LDH), and human epididymis secretory protein 4 (HE-4), were performed in all patients with adnexal mass.