The obtained test results were compared with the levels of two other tumor markers: CA 125 (carcinoma antigen 125), which is a marker of ovarian cancer that is useful in assessing the effectiveness of treatment, in detecting relapses and predicting the survival time of patients, and HE4 (human epididymis protein 4), which in laboratory practice is used in the diagnosis and differentiation of epithelial ovarian cancer. This evidence concerns the gene WFDC2 and ovarian cancer.