title: Asymptomatic renocolic fistula as a complication of staghorn calculus: case report.
abstract: OBJECTIVE
  To report a complication of a staghorn stone in a non-functioning right kidney.
  
  
  METHODS
  We present a 47 year old female with right lumbar pain and history of recurrent urinary tract infection (UTI). After an acute pyelonephritis episode, a right staghorn stone was diagnosed in a non-functioning right kidney.
  
  
  RESULTS
  During right nephrectomy, we found a renocolic fistula not observed in the imaging studies before surgery. We performed a simple closure of the colon wall after resection of the fistula.
  
  
  CONCLUSIONS
  Asymptomatic renocolic fistula is a rare complication of an acute pyelonephritis secondary to a staghorn stone.
authors.affiliation: Servicio de Urologia.Complejo Hospitalario Llerena. Zafra.Badajoz.Spain.
authors.forename: Federico Leopoldo
authors.initials: FL
authors.lastname: Zeller
authors.forename: Jesús María
authors.initials: JM
authors.lastname: García Garzón
authors.forename: Jordi
authors.initials: J
authors.lastname: Peralta
authors.forename: Jacob
authors.initials: J
authors.lastname: Benguigui Benadiva
mesh_terms: D058070:Asymptomatic Diseases; D003108:Colonic Diseases / Q000209:etiology*; D005260:Female; D006801:Humans; D007412:Intestinal Fistula / Q000209:etiology*; D007669:Kidney Calculi / Q000150:complications*; D007670:Kidney Calices; D007674:Kidney Diseases / Q000209:etiology; D008875:Middle Aged; D014548:Urinary Fistula / Q000209:etiology*