The most common biomarkers, which are overexpressed in the CRC cellular membrane, include the folate receptor (FR-α, 37.1%), epidermal growth factor receptor (EGFR, 32.8%), the carcinoembryonic antigen (CEA, 98.8%), and tumor-associated glycoprotein (TAG-72, 79%) [23]. Here, CEACAM5 is linked to colorectal carcinoma.