Treatment of Newly Diagnosed Patient's With Wilm's Tumor Requiring Abdominal Radiation Delivered With Proton Beam Irradiation

The treatment approach with radiation therapy prescribed in this trial is designed to deliver highly conformal radiation therapy (proton beam radiation or intensity modulated photon radiation) to target volumes that are based on the burden of disease.

Patients will receive standard of care chemotherapy based on diagnosis and stage.

Participants will undergo complete surgical resection at diagnosis or after 6-12 weeks of induction chemotherapy

Participants will undergo surgical resection at diagnosis or after 6-12 weeks of induction chemotherapy.

Participants will undergo partial nephrectomy after 6-12 weeks of induction chemotherapy.