Construction of the diagnostic snoRNA signature for HCC and identified key snoRNAs (A) least absolute shrinkage and selection operator (LASSO) coefficient profiles of the 42-survival related snoRNA. The tuning parameter (lambda) selection in the LASSO model. (B) The ROC curve of LASSO regression analysis. (C) The intersection diagram of 25 diagnostic model snoRNAs and 6 prognostic model snoRNAs. ROC curves for the SNORA11, SNORD124, SNORD46, SNORD63, SNORA59B in TCGA (D), ICGC (E). Key snoRNA expression level of SNORA11, SNORD124, SNORD46 in TCGA(F), ICGC (G). ****P < .0001. HCC = hepatocellular carcinoma, ICGC = international cancer genome consortium, ROC = receiver operating characteristic, snoRNAs = small nuclear RNAs, TCGA = the cancer genome atlas.