Radiotherapy for benign diseases.

Radiotherapy mainly involves treatment of patients with malignant tumors. Even with recognition of the risks of late skin injury, carcinogenesis, leukemogenesis, and genetic damage from all ionizing radiation; radiation therapy also continues to be accepted treatment for benign diseases. Before initiation, the quality of irradiation, total dose, overall time, underlying organs at risk, and shielding factors should be considered.