In the classifier of our study, AC090921.1, AC096637.2, LINC01224, SERTAD4-AS1, AC004477.1, AC034229.4, AC209154.1, CDKN2A-DT, CDKN2B-AS1, LINC01549, MAFA-AS1, MAFA-AS1, MAFG-DT, MIR9-3HG and SNHG25 has not been reported to related to HCC biology, the functions and mechanisms of these lncRNAs in HCC need to be further investigated. This evidence concerns the gene CDKN2A and hepatocellular carcinoma.