Radiofrequency Ablation - The use of electrical current to destroy tissue.

Gene therapy - Treatment that alters a gene. In studies of gene therapy for cancer, researchers are trying to improve the body's natural ability to fight the disease or to make the cancer cells more sensitive to other kinds of therapy.

Angiography - Imaging of a system of blood vessels after injection of a dye opaque to x-rays.

Chemoembolization - A procedure in which the blood supply to the tumor is blocked surgically or mechanically, and anticancer drugs are administered directly into the tumor. This permits a higher concentration of drug to be in contact with the tumor for a longer period of time.