Primary Renal Plasmacytoma

Extramedullary plasmacytoma is a rare malignancy, composed of plasma cell dyscrasias localized to an extramedullary site in the soft tissue. The great majority of extramedullary plasmacytoma occurs in the head and neck region, mainly in the upper respiratory tract and oral cavity. Extramedullary plasmacytoma arising in the kidney, termed a primary renal plasmacytoma, is a very rare malignancy. Primary renal plasmacytoma is not distinguished from a renal cell or transitional cell carcinoma using conventional imaging studies. The diagnosis of a primary renal plasmacytoma is only made on histopathological examination. Herein, a case of primary renal plasmacytoma, in a 39-year-old male patient, is reported. (Korean J Urol 2007;48:878-880) 󰠏󰠏󰠏󰠏󰠏󰠏󰠏󰠏󰠏󰠏󰠏󰠏󰠏󰠏󰠏󰠏󰠏󰠏󰠏󰠏