Irreversible Electroporation Ablation of an Unresectable Fibrous Sarcoma With 2 Electrodes: A Case Report.

Purpose: To explore the safety and efficacy of irreversible electroporation ablation in unresectable fibrous sarcoma with 2 electrodes. Methods: A 74-year-old woman with unresectable retroperitoneal malignant fibrous sarcoma was treated with percutaneous irreversible electroporation. Four ablations were performed on the mass, which measured 7.3 x 7.0 x 7.5 cm, with 2 electrodes. Results: A contrast-enhanced computed tomography scan 2 months postoperatively showed that the tumor had reduced to 5.1 x 4.0 x 5.2 cm, without obvious enhancement. Any adverse reactions were evaluated as level 1. Conclusion: In the short term, the treatment with 2 electrodes for fibrous sarcoma appears to be safe and effective.