HE4 tumor marker as a predictive factor for lymphatic metastasis in endometrial cancer.

Endometrial cancer is the most common genital cancer in high-resource countries. Treatment is essentially surgical, but the role of lymphadenectomy in the treatment of low-stage and low-grade tumors has not been defined. Although no tumor factors have been validated for use as preoperative prognostic markers of endometrial cancer at yet, human epididymis protein 4 (HE4) has received much interest as a potential diagnostic and prognostic tumor marker. Since 2008, several studies have explored its utility in the management of endometrial cancer: HE4 may be a useful preoperative prognostic marker because it is associated with lymphatic metastasis and other unfavorable factors in endometrial cancer. In addition, some studies have explored a HE4 cutoff value to classify patients according to lymph node involvement. HE4 might be beneficial as a serum marker that helps clinicians in the decision-making algorithm for treatment of endometrial cancer, enabling them to perform individualized operations and decrease the adverse effects of unnecessary surgery.