Regarding CK20, slightly lower expression levels were detected in CRC patients compared to IID patients and healthy controls (CRC—median: 1.84 [EU], range: 0–118.00 [EU]; IID—median: 3.82 [EU], range: 0–97.50 [EU]; healthy—median: 3.03 [EU], range: 0—15.20 [EU]), but no clear differences between the three cohorts could be determined (all p = ns) (Figure 2A). Here, KRT20 is linked to colorectal carcinoma.