This study on 50 CRC patients using mRNA levels of six genes (CEA, mesenchymal–epithelial transition factor (c-Met), mucin 1(MUC1), CK19, EGFR, and Epithelial cell adhesion molecule (EpCAM)) showed a diagnostic SN of 87% and accuracy of 85%. Here, CEACAM5 is linked to colorectal carcinoma.