The liver is a large and substantial organ of the human body, and apart from various lumps that can appear in itself, there are also tumors from other parts that metastasize to the liver and form occupancy-like lesions, which include primary and secondary lesions, as follows: 1, primary liver cancer is most common in China and Asia because of the high rate of hepatitis B infection, which causes cirrhosis of the liver. The treatment effect is relatively poor and early diagnosis and early treatment are advocated. 2. Benign lesions, such as hepatic hemangioma, are benign lesions, usually not very large, not more than 10 cm or not at the edge of the liver, and can be followed up. 3. Cystic liver lesions, i.e. liver cysts, are mostly benign lesions, but there are times when they are malignant, and some cancers from the colon, stomach or lung metastasize to the liver. There are also some cancers that metastasize to the liver from the colon, stomach or lung. Therefore, the diagnosis and treatment of hepatic occupational lesions pose a great confusion to doctors.