“…Currently, the ovarian cancer molecular markers routinely detected in clinical practice are cancer antigen 125 (CA125) ( 12 ), carcinoembryonic antigen (CEA) ( 13 ), human epididymis protein 4 (HE4) ( 14 ), carbohydrate antigen 19-9 (CA19-9) ( 15 ), mesothelin ( 16 ), α-fetoprotein ( 17 ), PARP ( 18 ), FRα ( 19 ), TP53 ( 20 ), HRD ( 21 ), BRCA1/2 ( 22 ) and AXL ( 23 ) ( Table I ); however, the detection of only one of these markers often provides an inaccurate result ( 24 ). CA125 is the most frequently used biomarker in the diagnosis of ovarian cancer ( 25 ), while HE4 was introduced as a biomarker more recently.…”