title: [Idiopathic progressive bilateral ureteral stenosis].
abstract: OBJECTIVE
  To report one case of progressive bilateral ureteral stenosis without demonstrable etiologic cause.
  
  
  METHODS
  We diagnosed and treated a 73-year-old female patient who developed progressive bilateral distal ureteral stenosis without a demonstrable cause.
  
  
  RESULTS
  Surgery was carried out and the pathologic study showed a bilateral ureteral stenosis secondary to fibrosis and chronic unspecific inflammation.
  
  
  CONCLUSIONS
  Idiopathic ureteral stenosis is a rare clinical picture, more if progressive and bilateral.
authors.affiliation: Servicio de Urología y Servicio de Anatomía Patológica, Hospital Comarcal de Laredo, Cantabria, España. e.diego@telefonica.net
authors.forename: Enrique
authors.initials: E
authors.lastname: de Diego Rodríguez
authors.forename: Alberto
authors.initials: A
authors.lastname: Hernádez Castrillo
authors.forename: Miguel Angel
authors.initials: MA
authors.lastname: Rado Velázquez
authors.forename: José María
authors.initials: JM
authors.lastname: Gómez Ortega
mesh_terms: D000368:Aged; D001416:Back Pain / Q000209:etiology; D003251:Constriction, Pathologic; D018450:Disease Progression; D004487:Edema / Q000209:etiology; D005260:Female; D005355:Fibrosis; D006801:Humans; D007249:Inflammation / Q000150:complications; D014513:Ureter / Q000473:pathology; D014515:Ureteral Diseases / Q000150:complications; D014517:Ureteral Obstruction / Q000209:etiology* / Q000601:surgery