What is the problem of nodules, hemangiomas, cysts and calcified foci in the liver found by ultrasound or CT? After annual health checkups, many people are often worried and consulted about similar problems because they are found to have occupying lesions such as liver nodules, CT low-density or high-density occupancies, cysts, hemangiomas or calcified foci: first of all, these benign lesions, such as liver cysts, hemangiomas or calcified foci, often appear during normal conception and growth due to congenital or acquired reasons. These manifestations are stable over a long period of time and generally do not become cancerous and deteriorate, so there is no need to worry about them. However, if the cyst or hemangioma is large and located at the edge of the liver, it often makes people feel stuffy and uncomfortable in the liver area, and there is a risk of rupture. In this case, we would recommend treatment, such as surgical excision and minimally invasive treatment, especially minimally invasive treatments (anhydrous alcohol injection, radiofrequency ablation, microwave knife ablation, argon helium knife, etc.) developed in recent years, which are very safe and effective for such lesions and cause minimal damage. Simple calcified foci and calcified spots in the liver do not need to be treated. Second, normal people with long-term stable liver simple nodules are generally small (<2cm), no health hindrance, only need regular ultrasound examination can be, if a short period of rapid increase, according to the following "three" treatment. The most important is the nodules in the liver based on chronic liver disease (chronic hepatitis B, hepatitis C, alcoholic liver and self-free liver), especially those newly found and enlarged, need to pay great attention. Specific measures: 1. For <1cm, ultrasound and alpha-fetoprotein (afp) should be reviewed regularly, once a month initially, once every two months after 3 months, and once every 3 months after one year. 2. For those whose nodules increase to >1cm, if AFP continues to be negative, timely localization of liver aspiration for liver histological examination is required, and if there is no problem, continue observation. If there is suspicion, according to the specific situation, immediately perform minimally invasive treatment to kill it. 3. If AFP continues to increase to more than 200 for two months or more than 400 for one month, immediate surgery or minimally invasive treatment is recommended according to primary liver cancer, and surgery and minimally invasive treatment are recommended at present; for those >3cm, intervention can be done first and then minimally invasive, and most of them can be cured. Of course, if liver transplantation is available, the recurrence rate is the lowest. If the nodules are larger than 6 cm, a combination of surgery, interventional minimally invasive, radiotherapy, targeted therapy and bioimmunotherapy can be used to achieve a better cure rate. For hepatocellular carcinoma with metastasis in portal vein, hepatic artery and bile duct, radiotherapy, molecular targeted therapy and biological therapy can have certain efficacy. 4.While doing the above treatment, DCs biological therapy for liver cancer can effectively stop the recurrence and metastasis of liver cancer. DCs biotherapy for liver cancer is the clinical application of the basic research results of the body’s natural active immune mechanism in recent years, and has achieved better efficacy in the fields of skin cancer, hepatitis B, hepatitis C and lymphoma, etc., which will not be introduced in detail here.