In addition, whether S100A9 mRNA can be used as a risk factor to affect the survival of cancer patients in pan-cancer also varies, which can be used as a risk factor to affect the survival of cancer patients in LIHC, ALL, LGG, KIPAN, GBM, PAAD, LAML and BLCA datasets (Figure 2A). The gene discussed is S100A9; the disease is acute lymphoblastic leukemia.