(A) CDKN2A expression has significant positive correlation between tumor purity, B cell, CD+8 Tcell, CD+4 Tcell, macrophage, neutrophil, and dendritic cell. P<0.05 is considered as significant. (B) Correlation analysis of CDKN2A and immune invasion related genes CD4, pDC, Eosinophil, Th1, CD56bright, and CD56dim in liver hepatocellular carcinoma. The x-axis represents the TPM of the CDKN2A gene (log2), and the y-axis represents the TPM of the genes CD4, pDC, Eosinophil, Th1, CD56bright, and CD56dim; TPM, transcript per million. P<0.05 is considered as significant.