LAD1 and colorectal carcinoma: Interestingly, LAD1 expression levels were highest in the blood of CRC patients compared to IID patients and healthy controls (CRC—median: 10.62 [EU], range: 0.86–592.70 [EU]; IID—median: 7.79 [EU], range: 0.30–85.91 [EU]; healthy—median: 7.78 [EU], range: 2.90–90.18 [EU]; CRC vs. IID p = 0.015; CRC vs. healthy p = ns; IID vs. healthy p = ns) (Figure 2C).