As shown in Figure 9A, the FANCD2 expression level in HCC had an enormously positive correlation with neutrophils, purity, macrophages, CD4+ T cells, CD8+ T cells, dendritic cells, and B cells, indicating that FANCD2 could be of great importance in the regulation of the immune infiltration function of HCC. This evidence concerns the gene CD8A and hepatocellular carcinoma.