Here we report a case of a 76-year-old man with diffuse large B-cell lymphoma (DLBCL) with simultaneous involvement of the right breast and left testicle. The patient underwent complete resection of the involved testis, followed by immunochemotherapy with rituximab, cyclophosphamide, doxorubicin, vincristine, and prednisolone (R-CHOP) and prophylactic radiotherapy to the contralateral testis. Following this multimodal therapy, he achieved a complete response. This is a rare case of DLBCL involving both the breast and the testis in a male patient.
- Diffuse large B-cell lymphoma