Besides, we also observed that the expression of ARG1 was associated with several clinicopathological features of HCC patients, that the higher expression of ARG1 was positively correlated with more aggressive tumor growth, size, ALT, and GGT level (Table 2), suggesting that ARG1 might function as an oncogene in the progression of HCC. The gene discussed is ARG1; the disease is hepatocellular carcinoma.