Prior to the operation, the sensitivity of mSEPT9 and CEA levels for the anticipation of postoperative recurrence in individuals with CRC was 88% and 72%, respectively, and the specificity was 56.19% and 55.24%, with area under the curve (AUC) values of 0.721 and 0.636, respectively. This evidence concerns the gene CEACAM5 and colorectal carcinoma.