Radiofrequency ablation (RFA) is a new therapy for cancer treatment that has shown to be highly effective in destroying tumors. In this procedure, a special needle is inserted directly into the tumor using the guidance of an imaging machine such as ultrasound. After the tines of the needle are deployed, radiofrequency energy is sent through the needle to generate heat, destroying the tumor. This minimally invasive treatment can be used to combat tumors in the liver, adrenal glands and other areas of the body. RFA can also be used on inoperable tumors. Patients are sedated during the procedure and usually only require an overnight hospital stay. Many physicians combine RFA therapy with chemotherapy for greater effectiveness in fighting cancer.