CEACAM5 and ovarian carcinoma: Routinely determining blood biomarkers, such as CA125, carcinoembryonic antigen (CEA), alpha-fetoprotein (AFP), beta-human chorionic gonadotropin (b-HCG), and lactate dehydrogenase (LDH), is recommended, like for epithelial and non-epithelial ovarian cancers (10).