title: [Systemic lupus erythematosus and pyeloureteral obstruction. Description of a case].
abstract: OBJECTIVE
  To discuss the clinical implications of systemic lupus erythematosus (SLE) as a complication of a urological condition.
  
  
  METHODS
  Herein we describe a patient who presented with acute pyelonephritis due to ureteropelvic juntion stenosis, and a superimposed activation of SLE that had not been previously detected.
  
  
  RESULTS
  This form of presentation led to a delay in making the diagnosis since it was focused urologically. The diagnosis of SLE was based on the clinical features, determination of antinuclear antibodies (ANA) and a decrease in serum complement.
  
  
  CONCLUSIONS
  When a patient consults with fever arising from a urological condition that is refractory to conventional therapy, it is mandatory to make the differential diagnosis from other disease entities, as shown in this case.
authors.affiliation: Servicio de Urología, Hospital Universitario de Getafe, Getafe, Madrid, España.
authors.forename: M
authors.initials: M
authors.lastname: Luján Galán
authors.forename: A
authors.initials: A
authors.lastname: Páez Borda
authors.forename: I
authors.initials: I
authors.lastname: Romero Cagigal
authors.forename: C
authors.initials: C
authors.lastname: Llorente Abarca
authors.forename: A
authors.initials: A
authors.lastname: Berenguer Sánchez
mesh_terms: D000328:Adult; D002305:Cardiac Tamponade / Q000209:etiology; D005260:Female; D005334:Fever / Q000209:etiology; D006417:Hematuria / Q000209:etiology; D006801:Humans; D008180:Lupus Erythematosus, Systemic / Q000150:complications* / Q000175:diagnosis; D008181:Lupus Nephritis / Q000150:complications*; D011183:Postoperative Complications; D011677:Punctures; D011704:Pyelonephritis / Q000209:etiology*; D014517:Ureteral Obstruction / Q000209:etiology* / Q000601:surgery