title: [Colovesical fistula secondary to the migration of a biliary stent. Case report].
abstract: BACKGROUND
  The endoscopic placement of endoprostheses to decompress biliary obstruction is a commonly used treatment for malignant biliary diseases and is also used in the treatment of benign biliary strictures. Unusual complications of endoprosthesis placement have been described and include the migration of the stent. We present a case to share with the scientific community, an unusual complication secondary to the migration of a biliary stent that has not previously been reported to our knowledge.
  
  
  METHODS
  We present the case of a 47-year-old female with a diagnosis of benign papillary stenosis. The patient received a biliary endoprosthesis with clinical improvement. Later she underwent open cholecystectomy and common duct exploration. At consultation 18 months later, the patient presents with indistinct lower abdominal pain and dysuria. We performed imaging studies where the biliary stent was observed, partly in the sigmoid colon and partly in the bladder. The patient underwent surgery where a colovesical fistula was found and treated during the same surgical event. The patient was discharged succesfully.
authors.affiliation: Servicio de Cirugía General, Hospital Civil de Guadalajara Fray Antonio Alcalde, Universidad de Guadalajara. ozzo8@yahoo.com
authors.forename: Juan José
authors.initials: JJ
authors.lastname: Soto-Avila
authors.forename: Miguel E
authors.initials: ME
authors.lastname: Gómez-Wong
authors.forename: Francisco
authors.initials: F
authors.lastname: Preciado-Hernández
mesh_terms: D002763:Cholecystectomy; D042883:Choledocholithiasis / Q000601:surgery; D005260:Female; D005548:Foreign-Body Migration / Q000150:complications* / Q000601:surgery; D006801:Humans; D007412:Intestinal Fistula / Q000209:etiology* / Q000601:surgery; D008875:Middle Aged; D011183:Postoperative Complications / Q000209:etiology* / Q000601:surgery; D019919:Prosthesis Implantation; D012810:Sigmoid Diseases / Q000209:etiology* / Q000601:surgery; D046628:Sphincter of Oddi Dysfunction / Q000601:surgery; D015607:Stents / Q000009:adverse effects*; D001744:Urinary Bladder Calculi / Q000209:etiology; D001747:Urinary Bladder Fistula / Q000209:etiology* / Q000601:surgery