Proton Radiotherapy for Stage I, IIA, and IIB Seminoma

Phase II study using Proton radiation therapy to treat males, aged 18 years or older, with Stage I, IIA and IIB Seminoma. This research study will be done in conjunction with the Robert H. Burr Proton Therapy Center at the Mass. General Hospital and the Department of Defense. In the feasibility portion of the study patients will be evaluated to determine acute toxicity. If the study is deemed feasible the principal investigator (PI) hopes that proton RT will reduce the lethargy rate as compared to photon radiation therapy (RT).