title: A mucinous cystadenoma in rectal cuff of a patient with familial adenomatous polyposis.
abstract: BACKGROUND
  Familial adenomatous polyposis (FAP) may be associated with some extracolonic manifestations which in this vein, it is known as Gardner's syndrome. To our knowledge, so far, there is no report of mucinous cystadenoma in association with FAP.
  
  
  METHODS
  We report a 31-year-old woman with FAP who underwent total proctocolectomy with ileal pouch-anal anastomosis 5 years earlier. During endoscopic surveillance, she was found to have a submucosal lesion in rectal cuff.
  
  
  RESULTS
  Endoscopic ultrasound (EUS) revealed a round submucosal anechoic lesion measuring about 3 cm originating from the second layer of the rectal cuff. Surgical resection was performed and a cystic tumor was removed. Histologic examination was consistent with mucinous cystadenoma.
  
  
  CONCLUSIONS
  FAP can be associated with mucinous cystadenoma.
authors.affiliation: Gastroenterology and Liver Diseases Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
authors.forename: Seyed Reza
authors.initials: SR
authors.lastname: Fatemi
authors.affiliation: Gastroenterology and Liver Diseases Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
authors.forename: Fakhri Alsadat
authors.initials: FA
authors.lastname: Anaraki
authors.affiliation: Gastroenterology and Liver Diseases Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran. bzd_hatami@yahoo.com.
authors.forename: Behzad
authors.initials: B
authors.lastname: Hatami
authors.affiliation: Gastroenterology and Liver Diseases Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
authors.forename: Zhaleh
authors.initials: Z
authors.lastname: Mohsenifar
mesh_terms: D011125:Adenomatous Polyposis Coli / Q000473:pathology*; D000328:Adult; D018291:Cystadenoma, Mucinous / Q000473:pathology*; D004724:Endoscopy; D005260:Female; D006801:Humans; D009092:Mucous Membrane / Q000473:pathology; D012007:Rectum / Q000473:pathology*
keywords: Familial adenomatous polyposis (FAP); Gardner’s syndrome; Mucinous cystadenoma; Proctocolectomy with ileal pouch-anal anastomosis (IPAA)