title: Villous adenoma in augmentation colocystoplasty asociated to infiltrating urotelial cancer in bladder remanent.
abstract: OBJECTIVE
  To report a new case of villous adenoma developed in augmentation colocystoplasty.
  
  
  METHODS
  Characterization of a new case and review of the literature published to date.
  
  
  RESULTS
  We report the case of a 66 year-old man with a villous adenoma and synchronic infiltrating transitional cell carcinoma of the bladder after augmentation colocystoplasty. The latency period until the development of villous adenoma after surgery is long. Treatment consisted of transurethral resection.
  
  
  CONCLUSIONS
  Villous adenoma is a benign neoplasm that occurs in the colonic mucosa and shows a high ability to become a malignant colonic cancer. Only two cases of villous adenoma in augmentation colocystoplasty have been reported. We recommend follow up with periodic cystoscopy because of its high malignancy potency.
authors.affiliation: Urology Department, General University Hospital Gregorio Marañon, Madrid, Spain. adrhusillos@hotmail.com
authors.forename: Adrian
authors.initials: A
authors.lastname: Husillos Alonso
authors.forename: David
authors.initials: D
authors.lastname: Subirá Ríos
authors.forename: Roberto
authors.initials: R
authors.lastname: Molina Escudero
authors.forename: Carlos
authors.initials: C
authors.lastname: Hernández Fernández
mesh_terms: D018253:Adenoma, Villous / Q000175:diagnosis / Q000209:etiology* / Q000601:surgery; D000368:Aged; D002295:Carcinoma, Transitional Cell / Q000175:diagnosis / Q000209:etiology* / Q000601:surgery; D006801:Humans; D008297:Male; D009378:Neoplasms, Multiple Primary / Q000175:diagnosis / Q000209:etiology* / Q000601:surgery; D001749:Urinary Bladder Neoplasms / Q000175:diagnosis / Q000209:etiology* / Q000601:surgery; D016476:Urinary Reservoirs, Continent / Q000009:adverse effects*