PRIMARY RENAL PLASMACYTOMA - A CASE-REPOR T

We describe a patient with a primary renal plasmacytoma. In the litera ture available, only six clinical cases have been reported. A 64-year- old patient is presented who had the clinical signs of a renal cell ca rcinoma. Histological examination after nephrectomy, however, revealed a plasmacytoma. Based on this case, we discuss how one should proceed in this disease. Primary renal plasmacytoma can be tentatively diagno sed preoperatively only in the presence of paraproteinemia or Bence-Jo nes proteinuria, as it cannot be distinguished from other renal tumors by imaging procedures. Postoperatively, further staging procedures mu st rule out bone involvement (solitary myeloma or multiple myeloma). N ephrectomy is required in patients with plasmacytoma only if renal com plications occur.