Relapsed Extramedullary Multiple Myeloma Presenting as Bilateral Solid Perirenal Masses

We present a patient with IgA myeloma who responded well to chemo-radiation therapy. The patient subsequently underwent autologous followed by nonmyeloablative allogenic bone marrow transplant and relapsed after six years in an unusual manner with extensive extramedullary disease with bilateral perirenal involvement. The highly variable expression of myeloma at relapse highlights the importance of individualized follow-up and periodic imaging for early detection of relapse.