title: Bilateral proliferating Brenner tumor of the ovary associated with recurrent urothelial carcinoma of the urinary bladder.
abstract: BACKGROUND
  Brenner tumors of ovary are relatively uncommon neoplasm. Most of them are benign and less than 5% are proliferating or borderline. The association between Brenner tumor of the ovary and papillary urothelial carcinoma of bladder is extremely rare.
  
  
  METHODS
  We describe an unusual case of proliferating bilateral Brenner tumor of the ovary with a highly recurrent low-grade papillary urothelial carcinoma of bladder.
  
  
  CONCLUSIONS
  The immunohistopathological similarities of ovarian and bladder tumors and their association in the current case, may be coincidental but may reflect a common initiating event inducing similar pathogenesis changes in the epithelium of both organs. More cases are needed to be reported to better understand this association.
authors.affiliation: Department of Pathology, Farhat Hached Hospital, Sousse, Tunisia.
authors.forename: Sonia
authors.initials: S
authors.lastname: Ziadi
authors.forename: Mounir
authors.initials: M
authors.lastname: Trimeche
authors.forename: Faten
authors.initials: F
authors.lastname: Hammedi
authors.forename: Samir
authors.initials: S
authors.lastname: Hidar
authors.forename: Baddredine
authors.initials: B
authors.lastname: Sriha
authors.forename: Sarra
authors.initials: S
authors.lastname: Mestiri
authors.forename: Sadok
authors.initials: S
authors.lastname: Korbi