Abstract

The treatment of childhood cancer is a complex and a multidisciplinary process. Radiotherapy (RT) is one of the most important parts of multimodal treatment. Cure rates are increasing with modern treatment approaches and treatmentrelated morbidity in pediatric patients with long- life expectancy is gaining more importance. Today, pediatric tumors are treated based on risk-adapted treatment protocols. RT is frequently applied to intermediate and high risk patients in consideration of the treatment site , and doses which are determined based on the response to chemotherapy. In this review article, the place, treatment site, and doses of RT in Wilms’ tumor, neuroblastoma, rhabdomyosarcoma and desmoplastic small round cell tumor are summarized.