CEACAM5 and neoplasm: Laboratory tests, including the tumor markers Cancer Antigen 125 (CA-125), Alpha-fetoprotein (AFP), Cancer Antigen 15-3 (CA15-3), and Cancer Antigen 19-9 (CA19-9), were within the normal range, whereas Carcinoembryonic Antigen (CEA) was slightly elevated (8.04 ng/mL).