Editorial on “Role of thermal ablation in the management of colorectal liver metastasis”

The last 30 years have shown the increasing role of Ablation in the treatment of malignant liver tumors. By the introduction of percutaneous ethanol injection (PEI) as first ablation tool for percutaneous treatment of hepatocellular carcinoma (HCC) in cirrhosis that firstly showed very high efficacy (1), several ablation techniques (mainly thermal) have been introduced in clinical practice aimed at destroying primary and secondary hepatic tumors as alternative or substitute tools to surgery.