title: [Renal plasmacytoma. Report of a new case].
abstract: OBJECTIVE
  To present a case of extramedullary plasmacytoma localized in the kidney. The clinical features, diagnostic tests, treatment and outcome are discussed.
  
  
  RESULTS
  A 59-year-old patient presented with a right renal mass and renal failure. The complementary tests showed a lambda monoclonal band in blood and urine, and a left renal biopsy showed changes compatible with myeloma. The definitive diagnosis of plasmacytoma was based on the findings of open renal biopsy since fine needle punction findings were compatible with a carcinoma. The patient received polychemotherapy, but died one year after the diagnosis due to a rapidly progressing plasmatic cell dyscrasia.
  
  
  CONCLUSIONS
  Renal plasmacytoma is rare and should be suspected when paraprotein is detected in blood and urine, and when the patient has a history of plasmatic cell dyscrasia. There is no widely-established treatment. Surgery, radiotherapy or chemotherapy, alone or in combination, can be utilized.
authors.affiliation: Servicio de Urología, Hospital Universitario 12 de Octubre, Madrid, España.
authors.forename: A
authors.initials: A
authors.lastname: Tejido Sánchez
authors.forename: E
authors.initials: E
authors.lastname: Hernández Martínez
authors.forename: M C
authors.initials: MC
authors.lastname: Ortíz
authors.forename: J P
authors.initials: JP
authors.lastname: García de la Torre
authors.forename: M
authors.initials: M
authors.lastname: Pamplona Casamayor
authors.forename: F
authors.initials: F
authors.lastname: de la Rosa Kherman
authors.forename: O
authors.initials: O
authors.lastname: Leiva Galvis
mesh_terms: D006801:Humans; D007680:Kidney Neoplasms / Q000175:diagnosis*; D008297:Male; D008875:Middle Aged; D010954:Plasmacytoma / Q000175:diagnosis*