title: [Sigmoid colovesical fistula associated with cancer of the sigmoid colon].
abstract: OBJECTIVE
  To report one case of colovesical fistula after the diagnosis of unresponsive urinary tract infection.
  
  
  METHODS
  The 76-year-old patient underwent a diagnostic work up including cystography, cystoscopy and barium enema.
  
  
  RESULTS
  Cystography revealed an image of the sigmoid colon, and cystoscopy showed a granuloma at the bladder dome. A fistula was identified underneath. A colovesical fistula was diagnosed and several intestinal germs grew on urine cultures. Partial cystectomy and end to end anastomosis of the sigmoid colon were carried out. Pathology report showed a well-differentiated adenocarcinoma which invaded down to the bladder mucosa.
  
  
  CONCLUSIONS
  Inflammatory diseases are the main the etiology of colovesical fistula, followed by neoplasias. We reviewed around 170 cases reported in our country. It is important to identify the fistula by means of the gastro-intestinal series and the study of the lower urinary tract when treating patients with urinary tract infection difficult to control. We suggest the best radical therapy is surgery in a single procedure.
authors.affiliation: Servicio de Urologia, Hospital Universitario de Toho, Ohashi, Tokyo, Japan.
authors.forename: Daisuke
authors.initials: D
authors.lastname: Yabuki
authors.forename: Yoshitomo
authors.initials: Y
authors.lastname: Sawada
authors.forename: Yasuharu
authors.initials: Y
authors.lastname: Takeuchi
authors.forename: Eisuke
authors.initials: E
authors.lastname: Masuda
authors.forename: Daisuke
authors.initials: D
authors.lastname: Satoh
authors.forename: Kanami
authors.initials: K
authors.lastname: Kuroda
authors.forename: Masaharu
authors.initials: M
authors.lastname: Tajima
authors.forename: Yoshikatsu
authors.initials: Y
authors.lastname: Sawamura
authors.forename: Masahiro
authors.initials: M
authors.lastname: Matsushima
authors.forename: Kazutoshi
authors.initials: K
authors.lastname: Shibuya
mesh_terms: D000230:Adenocarcinoma / Q000150:complications*; D000368:Aged; D006801:Humans; D007412:Intestinal Fistula / Q000209:etiology*; D008297:Male; D012810:Sigmoid Diseases / Q000209:etiology*; D012811:Sigmoid Neoplasms / Q000150:complications*; D001747:Urinary Bladder Fistula / Q000209:etiology*
vernacular_title: Fístuia vesico-sigmoidea asociada con cancer de colon sigmoides.