ROC analysis indicated that the area under the curve (AUC) of CEACAM7, CNTN3, CXCL3, CXCL8, SLC1A1, SLC4A4, SLC16A9, and TIMP1 in UC (Figure 8(a)), CRA (Figure 8(b)), and CRC (Figure 8(c)) was greater than 0.7 (p < 0.01). Here, CNTN3 is linked to colorectal carcinoma.