title: [A 56-year-old man with abdominal pain, intermittent claudication and a retroperitoneal mass].
abstract: OBJECTIVE
  To describe an additional case of idiopathic retroperitoneal fibrosis.
  
  
  RESULTS
  A 56-year-old man consulted for abdominal pain and previous symptoms of intermittent claudication. A CT scan disclosed a retroperitoneal mass, for which reason the patient was submitted to surgery. Analysis of the biopsy specimen demonstrated retroperitoneal fibrosis.
  
  
  CONCLUSIONS
  Although the clinical diagnosis of this disease is usually based on the CT findings, a histological analysis of the biopsy specimen provides a definitive diagnosis and permits intraperitonization of the ureters, which is the widely accepted treatment, during the same surgical session.
authors.affiliation: Servicio de Urología y Anatomía Patológica, Hospital de la Merced, Osuna, Sevilla, España.
authors.forename: M
authors.initials: M
authors.lastname: Medina Pérez
authors.forename: I
authors.initials: I
authors.lastname: Valpuesta Fernández
authors.forename: J
authors.initials: J
authors.lastname: Valero Puerta
authors.forename: A
authors.initials: A
authors.lastname: Medina Pérez
mesh_terms: D015746:Abdominal Pain / Q000175:diagnosis* / Q000209:etiology / Q000601:surgery; D001706:Biopsy; D006801:Humans; D007383:Intermittent Claudication / Q000175:diagnosis* / Q000209:etiology / Q000601:surgery; D008297:Male; D008875:Middle Aged; D012185:Retroperitoneal Fibrosis / Q000150:complications / Q000175:diagnosis* / Q000601:surgery; D012187:Retroperitoneal Space / Q000473:pathology