A 16x10mm cystic structure seen in the liver parenchyma is usually a hepatic cyst, in which case the examination should be refined to detect the cause of the cyst. If the cyst is non-parasitic, 16x10mm is a relatively small cyst and does not need to be treated, observation is sufficient. If the cyst is parasitic, medication and surgery are needed. 1. Non-parasitic cysts are usually larger than 5 centimeters in size before they cause symptoms and need to be removed. Cysts that are 16x10mm usually do not cause symptoms, so no treatment is needed and observation is sufficient. If the cyst causes discomfort in the future, surgical treatment is needed, such as open drainage surgery for cysts, subtotal hepatic cyst resection, partial hepatectomy and so on. 2. Parasitic cysts need to be treated with medication such as mebendazole tablets. Surgery is also needed to remove the parasites, and the above mentioned methods can be chosen. It is recommended to go to the hospital to improve the treatment under the guidance of the doctor.