Abstract
Diffuse large B-cell lymphoma is the most common subtype of non-Hodgkin lymphoma. Approximately 40% of cases have extranodal
involvement. Renal involvement is rare, however, it is associated with poor prognosis. Furthermore, renal involvement increases
the risk of central nervous system (CNS) recurrence. Therefore, it is recommended that CNS prophylaxis should be included in
lymphoma treatment in cases of renal involvement.