The growths on the liver, which we usually call occupying lesions, include abscesses, cysts, tumors, and nodules.
Abscesses are usually associated with painful fever and are an inflammatory manifestation.
Cysts usually have an intact envelope, so they are relatively well defined and are benign lesions.
Among tumors, there are benign tumors and malignant tumors. Benign tumors include mainly hemangiomas, hepatic adenomas, and localized nodular hyperplasia of the liver. Malignant tumors include mainly primary hepatocellular carcinoma and bile duct cell type carcinoma that occurs in the bile ducts.
Hepatic nodules are caused by fibrous changes in the liver that result in the proliferation of fibrous tissue in the liver and the disorganization of liver trabeculae.
The cause of an occupying lesion in the liver must first be determined, and surgery is not usually indicated for benign lesions. If it is liver cancer, surgery should be performed promptly after a clear diagnosis. However, if the patient is in the advanced stage of liver cancer, surgery is not recommended and treatment can be done with targeted therapy and other modalities.