Hepatic adenoma is a benign tumor associated with long-term contraceptive use and glycogen storage disease. on CT plain scan, the tumor appears as a hypodense foci with clear borders. the tumor bleeds easily and is slightly denser when combined with bleeding. In the enhanced scan, the patient showed a marked strengthening pattern in the arterial phase, i.e. the density was higher than the surrounding normal background liver parenchyma. In the venous phase, the density decreases rapidly and is lower than the normal surrounding liver parenchyma. Hepatic adenomas are predominantly found in young and middle-aged women and are associated with the patient’s long-term use of birth control pills. Patients are often clinically asymptomatic or have mild abdominal pain. When the tumor is combined with hemorrhage, hemorrhagic shock can occur. The above are the clinical manifestations of hepatic adenoma, the age of predilection, and the features of CT plain and enhanced CT.