“…Nevertheless, elevated serum CA125 levels are only seen in 50% of patients presented with early stage ovarian cancer and 80%-90% of patients with late stage disease, thus limiting its sensitivity (Molina et al, 1992;Rosen et al, 2005). Furthermore, the utility of CA125 as a biomarker for detecting ovarian cancer is hindered by the documented lack of specificity, since elevated serum CA125 concentrations can be found not only in a broad range of benign gynecologic diseases, but also in malignancies of different origin, including non-ovarian gynecologic cancers, other epithelial tumors and nonepithelial malignancies (Buamah, 2000;Miralles et al, 2003;Somigliana et al, 2004;Molina et al, 2008;Park et al, 2011).…”