Human Epididymis Protein 4 as a Diagnostic Marker of Ovarian Cancer and Its Reference Interval in Korean Population

ABSTRACT

Human epididymis protein 4 (HE4), which complements cancer antigen 125 (CA125), has emerged as a new diagnostic biomarker that can discriminate between benign and malignant ovarian tumors. The risk of ovarian malignancy algorithm (ROMA) incorporates CA125, HE4, and menopausal status to classify patients with pelvic masses into those at high or low risk of developing ovarian cancer. The reference interval of HE4 among Korean population was different from those recommended by the manufacturer or evaluated in the Chinese.