Without treatment, the serum tumor marker levels gradually decreased: CEA was 52.8ng/mL, CA19-9 was 124U/mL, and CA-125 was 231U/mL in January 2004; and CEA was 32.4ng/mL, CA19-9 was 33U/mL, and CA-125 was 180U/mL in January 2005. This evidence concerns the gene CEACAM5 and neoplasm.