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Glossary


G

  • Gamma Knife - An advanced form of stereotactic or focused radiosurgery for benign processes and metastatic brain tumors that were previously considered inoperable or very high risk for conventional brain surgery. The "knife" is formed by 201 intersecting beams of gamma radiation that deliver a concentrated dose to a precise area of the brain.
  • Garment Nevus - See Giant Nevus
  • Gene Therapy - The introduction of new genetic material to damaged genes or cancer cells. The goal of gene therapy is to replace damaged genes with healthy ones or to make cancer cells more sensitive to the effects of the immune system, immunotherapy, and chemotherapy.
  • Gene-Based Immunotherapy - Type of gene therapy in which antigen genes are introduced into tumor cells in order to stimulate an immune response.
  • Giant Nevus (Garment Nevus) - A congenital mole that covers a major area of the head or body and is at least 20 cm in diameter.
  • GM-CSF - Granulocyte macrophage colony-stimulating factor. A naturally produced protein of the immune system that stimulates the production of white blood cells. GM-CSF is currently being investigated as a treatment for metastatic melanoma.
  • Groin - The area where the upper thigh meets the hip. Also known a the inguinal region.