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Introduction: Skeletal muscle metastases from carcinomas, especially to intercostal muscles, are rare. Most metastatic chest wall tumors from hepatocellular carcinoma (HCC) result from disseminations through needle tracts of intrahepatic HCC treatments., Presentation of Case: We report the case of a 65-year-old man with chronic viral hepatitis B whose intrahepatic lesions were stabilized by repeated radiofrequency ablations and transcatheter arterial chemoembolization. Follow-up computed tomography demonstrated a well-enhanced mass in the right chest wall. Because α-fetoprotein and des-γ-carboxy prothrombin levels were elevated and no other tumors were detected, we diagnosed the mass as an extrahepatic metastasis from the HCC and resected it along with the surrounding ribs. There was no involvement of the bone, pleura, and lung., Discussion: The tumor was microscopically diagnosed as an intercostal muscle tumor metastasized from HCC, which has not been documented previously. The resection rate of extrahepatic tumors of HCC is low in literature. No other apparent extrahepatic recurrence has been observed for more than 20 months after the surgery., Conclusion: We report the case of HCC patient who underwent surgical resection of an intercostal muscle tumor that had metastasized from HCC. Pathological examination of the tumor revealed the tumor cells in the blood vessels, and we speculate it hematogeneous metastasis., (Copyright © 2012 Surgical Associates Ltd. Published by Elsevier Ltd. All rights reserved.)