CD8A and hepatocellular carcinoma: In this study, we conducted a comprehensive and detailed assessment of immune infiltration in HCC using the operation of ssGSEA algorithm, our team discovered that the elevated CD8 T cells infiltration were correlated with favorable prognosis, while a high degree of macrophages infiltration implied poorly prognosis, no matter which method (the median value or the best cutoff from x-title) was used for dividing patients into different groups.