Cluster B included 11 compounds with increased levels in the HCC group compared to CLD and healthy control groups, for example, PC (37:3) and PC (37:4), monounsaturated free fatty acids such as FA (19:1) and FA (16:1), and ceramides Cer (d34:0), Cer (d34:1) and Cer (d34:2). Here, CBLN1 is linked to hepatocellular carcinoma.