Diffuse Large B-cell Lymphoma Presenting as Bilateral Renal Masses: Successful Treatment with Dose-adjusted REPOCH (Rituximab, Etoposide, Prednisone, Vincristine, Cyclophosphamide, Doxorubicin) Chemotherapy Regimen.

Diffuse large B-cell lymphoma (DLBL) is an aggressive type of non-Hodgkin lymphoma (NHL). Renal involvement in NHL is not uncommon in advanced stages; however, it is rare to have kidneys affected early in the course of the disease. Usual chemotherapy regimen for DLBL is rituximab, cyclophosphamide, hydroxydaunorubicin, oncovin and prednisone (R-CHOP). This is a case of a 50-year-old female diagnosed with DLBL who presented with bilateral renal involvement at disease onset and also underwent complete remission after six cycles of dose-adjusted rituximab, etoposide, prednisone, vincristine, cyclophosphamide, doxorubicin (DA-REPOCH). Limited data exist on outcomes of patients with DLBL and renal disease who are treated with high-intensity regimes such as DA-REPOCH. It would be worth looking further into outcomes of DLBL patients especially with renal involvement on DA-REPOCH. Multicenter trials are required to demonstrate which of the two chemotherapy regimens (R-CHOP vs. DA-REPOCH) have better progression-free survival in this particular subset of patients.