Regarding preoperative tumor markers, the median carcinoembryonic antigen (CEA) level was 1.7 ng/mL (95% CI: 1.53–1.9), and the median carbohydrate antigen 19-9 (CA 19-9) level was 11.13 U/mL (95% CI: 9.2–13.6). The gene discussed is CEACAM5; the disease is neoplasm.