The Johns Hopkins Pediatric Radiation Oncology Program is creating a registry that will capture the full 3D radiation dosimetry delivered to its pediatric patients to manage the quality of care provided, as well as to examine the long-term outcomes and toxicity of each patient. The registry will capture baseline clinical data, disease, toxicity, and quality of life outcomes. The goal is to include all pediatric patients undergoing proton therapy and photon therapy to enable future comparisons of treatment outcomes.