Application of RFA for the treatment of oligometastasis and oligo-recurrence

Radiofrequency ablation (RFA) provides favorable local efficacy in the treatment of small hepatocellular carcinoma. Thus, this modality has been applied to other types of cancer such as metastatic cancer to the liver and the lung. Herein, we focus on RFA for such metastatic cancer and introduce its clinical outcomes. Such outcomes may suggest the potential to offer long-term survival for the patients with oligo-recurrence or oligometastasis. Notable advantages of RFA include its low invasiveness, the preservation of organ function, the freedom to perform the procedure regardless of any previous therapy, and the ability to repeat the procedure whenever required.