Intraperitoneal Distant Implantation After Repeated Radiofrequency Ablation for Hepatocellular Carcinoma: Report of Two Cases

Radiofrequency ablation (RFA) has been widely used in direct local destruction of a variety of solid tumors. It had been proved to be a promising treatment for early stage hepatomas. The complications of RFA were mostly due to local damage of the surrounding tissues or hemorrhage. Needle tract seeding was also a rare but significant complication after RFA. The tract seeding of tumors always occurred along the needle tract. We presented 2 cases of an unusual type of tract seeding - intraperitoneal distant implantation after percutaneous RFA for hepatomas. The metastatic tumors were treated with surgical resection.