CEACAM5 and neoplasm: Serum tumor markers were assessed and reported as follows: carcinoembryonic antigen (7.1 ng/mL), alpha-fetoprotein (1 ng/mL), human epididymis protein 4 (105 pmol/L), and cancer antigen 125 (350 U/mL) (with reference ranges for CEA, AFP, HE4, and CA-125 of < 4 ng/mL, < 8 ng/mL, < 70 pmol/L, and < 35 U/mL, respectively).