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Abstract
In the last decade, radiation had a growing place in the management of some benign diseases with proved efficacy in some, and promising results in others. Even with recognition of late injury, carcinogenesis and genetic damage from all ionizing radiation; radiation therapy also continues to be accepted treatment for benign diseases that do not respond to other methods of therapy. This category mainly includes total lymphoid irradiation in the management of autoimmune diseases and organ transplantation; endovascular irradiation to prevent vascular restenosis; prophylaxis against heterotrophic ossification in hip joint arthroplasty; in the management of age related macular degeneration;Graves’ disease and many benign diseases of the brain& spinal cord.
Radiation therapy may also be used in the hormonal treatment of some malignant tumors as in prophylaxsis against gynecomastia in patients receiving hormonal treatment for prostate carcinoma.