Multiple rounded slightly hypodense shadows in the liver are commonly seen in liver imaging reports, suggesting possible hepatic cysts, liver abscesses, hepatic hemangiomas, liver malignant tumors and other benign and malignant diseases, and the following describes the imaging manifestations of different diseases. 1. Liver cysts: CT shows single or multiple round or oval homogeneous hypodense shadows with smooth and sharp edges, and the CT value is about 0-15 Hu. 2. Liver abscess: CT scan shows intrahepatic low-density mass, whose density is lower than that of liver tissue and significantly higher than that of fluid. In most cases, the density of the lesion is not uniform, and the border is not clear. Enhanced CT can show certain characteristic manifestations, such as peripheral congestion sign, cluster sign, petal sign and continuous enhancement sign. 3. Hepatic hemangioma: CT scan shows a rounded low-density mass with uniform density. Enhanced CT shows nodular enhancement at the edge in the early stage, and then the contrast gradually expands to the center and fills in completely, which is the same as the density of the liver, and is characterized by fast inward and slow outward movement. 4. Primary hepatocellular carcinoma: CT scan shows round or irregular low density foci, necrosis and cystic degeneration with lower density, and increased density of hemorrhage. Enhanced CT is characterized by fast in and fast out. Numerous intrahepatic diseases can be manifested as round-like low-density shadows, and a single manifestation cannot exclude the possibility of malignant diseases. It is recommended that if multiple round-like slightly low density shadows are found in the liver, the patient should go to the hospital for further diagnosis and treatment by a specialist.