Moreover, in the KEGG analysis, eight out of the 13 genes (BCL2, CASP9, CCND1, CDKN1A, EGF, HSP90B1, MAPK3, and TP53) were identified and marked with the red star by the KEGG signaling pathway for PCa (Figure 4). The gene discussed is EGF; the disease is posterior cortical atrophy.