- Patients with primary liver cancer who is firstly diagnosed in Affiliated Tumor Hospital of Guangxi Medical University after November 2015, and the clinical diagnostic criteria is according to China's "primary liver cancer diagnostic and treatment practices (2011)". Clinical diagnostic criteria: In all solid tumors, there is only hepatocellular carcinoma can use clinical diagnostic criteria, which is recognized by domestic and foreign countries. Combined with China's national conditions, history of the national standards and clinical practice, the Expert Group can establish the clinical diagnosis of hepatocellular carcinoma requested the following conditions 1 + 2a or 1 + 2b + 3 at the same time satisfy: