Tumor chemotherapy is a treatment method that employs chemotherapeutic drugs to eradicate cancer cells. These drugs are cytotoxic, meaning they can affect both tumor cells and normal cells. In recent years, there has been a gradual increase in chemotherapy-induced liver injury. Chemotherapy-induced parenchymal liver injury often manifests as diffuse lesions, although focal lesions can occasionally be observed. There is a diversity in the pathogenesis and pathological changes of chemotherapy-induced focal liver disease. Radiologically, there is often challenging in differentiating chemotherapy-induced focal liver disease from hepatic metastases. Therefore, early and accurate diagnosis of this condition poses a certain challenge in clinical practice. This article presents the radiological findings of a case of chemotherapy-induced focal liver disease induced by chemotherapy for gastric cancer, and summarizes the radiological features and differential diagnostic points of chemotherapy-induced focal liver disease, aiming to enhance the understanding of this type of lesion among radiologists and clinicians and reduce related missed diagnoses and misdiagnoses.
