Efficacy of prophylactic irradiation to the contralateral testis for patients with advanced-stage primary testicular lymphoma: an analysis of outcomes at a single institution

Background Primary testicular lymphoma (PTL) is a rare, extranodal lymphoma that often relapses in the contralateral testis. We evaluated outcomes in patients with any stage of PTL who had received CHOP (cyclophosphamide, doxorubicin, vincristine, and prednisolone) with rituximab chemotherapy and prophylactic radiotherapy to the contralateral testis.