An inflammatory myofibroblastic tumor (IMT) is an uncommon, benign lesion characterized by the mesenchymal proliferation and infiltration of inflammatory cells composed primarily of lymphocytes and plasma cells. A percutaneous radiofrequency ablation (RFA) is an effective and safe therapeutic modality used for the management of liver malignancies. Here we report, for the first time, a case of IMT as a complication of RFA for hepatocellular carcinoma in a 61-year-old man with a Child’s class A hepatitis B-related liver cirrhosis. Gastrohepatic fis-tula formation was pathologically proven and associated with the RFA. Such a longstanding inflammation of the fistula might have been a possible cause of the development of IMT in this case. n inflammatory myofibroblastic tumor (IMT) is an uncommon, benign lesion which may simulate a malignancy on imaging studies. It is charac-terized by a mesenchymal proliferation featuring inflammatory cell infiltrates composed primarily of lymphocytes and plasma cells. Its pathogenesis is uncertain, although it is suggested that there are subsets of IMT with a neoplastic an
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