title: [Spontaneous retroperitoneal hemorrhage].
abstract: OBJECTIVE
  The etiology of spontaneous retroperitoneal hemorrhage is analyzed and the clinical, diagnostic and therapeutic aspects are discussed.
  
  
  RESULTS
  Two cases of spontaneous retroperitoneal hemorrhage from a ruptured adenocarcinoma of the kidney are reported. Both patients presented the characteristic Lenk's triad. Definitive diagnosis was made on the CT findings and treatment was by nephrectomy.
  
  
  CONCLUSIONS
  The most common cause of retroperitoneal hemorrhage arising from the kidney is a tumor. Treatment is based on the underlying cause of the underlying cause of the hemorrhage and the patient's hemodynamic status.
authors.affiliation: Servicio de Urología, Hospital de Guipuzcoa, San Sebastián, Guipuzcoa, España.
authors.forename: I
authors.initials: I
authors.lastname: Muro Bidaurre
authors.forename: J P
authors.initials: JP
authors.lastname: Sanz Jaka
authors.forename: J A
authors.initials: JA
authors.lastname: Recarte Barriola
authors.forename: A
authors.initials: A
authors.lastname: Martín López
authors.forename: E I
authors.initials: EI
authors.lastname: Hernaez Manrique
mesh_terms: D000230:Adenocarcinoma / Q000150:complications*; D005260:Female; D006470:Hemorrhage / Q000209:etiology*; D006801:Humans; D007680:Kidney Neoplasms / Q000150:complications*; D008297:Male; D008875:Middle Aged; D012187:Retroperitoneal Space
vernacular_title: Hemorragia retroperitoneal espontánea.