MMP26 and serous cystadenoma: Therefore, the purpose of the present study was to further investigate the diagnostic utility of selected MMPs, MMP-2, MMP-3, MMP-11 and MMP-26, in patients with OC, benign ovarian lesions (Serous cystadenomas) and healthy women in comparison to routinely used markers, HE4 and CA125, and in comparison, to the ROMA algorithm.