However, expression levels of CCNB2 do nothing with survival condition in HCC patients, while the levels of CCNB2 in HCC patients have obvious difference compared to the health group, which indicates that CCNB2 may act as a switch to initiate the occurrence of HCC, but it does not exert other tumor-related effects after the tumorigenesis. The gene discussed is CCNB2; the disease is neoplasm.