Laboratory investigation of tumor markers showed that cancer antigen 125 (Ca 125) and inhibin were markedly elevated (359.7, Ref: <35 U/mL and 443, Ref: 2–80 pg/mL, respectively), whereas alpha-fetoprotein (AFP; 13.7, Ref: <40 ng/mL), carcinoembryonic antigen (CEA; 0.3, Ref: <2.5 ng/mL), and cancer antigen 15–3 (Ca 15–3; 15.4, Ref: ≤30 U/mL) were normal. The gene discussed is CEACAM5; the disease is neoplasm.