Although pathological examination is the gold standard for confirming tumor diagnosis, liver biopsy is not necessarily required for the diagnosis of liver cancer. The clinical diagnosis of liver cancer can be confirmed if one of the following three items is met: 1. two typical imaging, ultrasound, enhanced CT, MRI or selective hepatic arteriogram manifestations with lesions >2cm; 2. one typical imaging manifestation with lesions >2cm and carcinoembryonic antigen value >400ng/mL; 3. positive biopsy of the liver, if the diagnosis of liver cancer is supported by imaging results can be If the diagnosis of hepatocellular carcinoma is supported by imaging results, the diagnosis can be made clinically.