For the clinical trial being described in this registration, participants will be observed to collect data for baseline assessment of disease and patient characteristics. This will be done before proton therapy on other trials followed by serial standard-of-care clinical assessments to evaluate acute and late complications, disease control, treatment-related mortality, and overall survival.
PRIMARY OBJECTIVE:
* To estimate the incidence of radiation associated grade 3 and grade 4 non-hematologic toxicities at 1, 3, 5, and 10 years in a radiated region specific manner after the initiation of proton therapy.
SECONDARY OBJECTIVES:
* To estimate the incidence of necrosis, vasculopathy, and symptomatic and permanent neurologic deficits at 1, 3, 5, and 10 years after the initiation of proton therapy in children treated for central nervous system (CNS) tumors in an irradiated region directed manner.
* To estimate the incidence of treatment-related mortality at 5 and 10 years after the initiation of proton therapy.
* To estimate the incidence of subsequent malignancies at 5 and 10 years after the initiation of proton therapy in an irradiated region directed manner.
* To estimate the incidence of fracture and osteonecrosis at 1, 3, 5, and 10 years after the initiation of proton therapy in children treated for musculoskeletal tumors in an irradiated region directed manner.
