title: Brenner tumor of the ovary: CT and MR findings.
abstract: OBJECTIVE
  The purpose of this study was to determine the CT and MR characteristics of Brenner tumors, rare epithelial neoplasms of the ovary.
  
  
  METHODS
  CT and MR scans of eight pathologically proven Brenner tumors of the ovary (seven benign, one malignant, and one associated with mucinous cystadenoma) were retrospectively reviewed. The masses were analyzed for location, size, external configuration, internal architecture, enhancement pattern, presence of calcification, and metastatic spread.
  
  
  RESULTS
  The patients' median age was 63 years (range 39-79 years), and the mean size of the tumors was 11.4 cm (7.5-17 cm). All tumors were unilateral and had a well-defined margin. The mass was mostly solid in three, mostly cystic in one, and "mixed" solid and cystic in four cases. The tumors with cystic components (n = 5) were mostly multilocular in appearance (n = 4). All the solid components showed mild homogeneous enhancement on postcontrast CT and MRI. Extensive amorphous calcification within the solid component on CT was seen in five of six cases (83%). No characteristic findings discriminating malignancy from benign Brenner tumor could be found.
  
  
  CONCLUSIONS
  Extensive amorphous calcification in a solid mass or solid component in a multilocular cystic mass is a characteristic finding of Brenner tumor of the ovary on CT and MRI.
authors.affiliation: Department of Radiology, Hanyang University Hospital, Seoul, Korea.
authors.forename: W J
authors.initials: WJ
authors.lastname: Moon
authors.forename: B H
authors.initials: BH
authors.lastname: Koh
authors.forename: S K
authors.initials: SK
authors.lastname: Kim
authors.forename: Y S
authors.initials: YS
authors.lastname: Kim
authors.forename: H C
authors.initials: HC
authors.lastname: Rhim
authors.forename: O K
authors.initials: OK
authors.lastname: Cho
authors.forename: C K
authors.initials: CK
authors.lastname: Hahm
authors.forename: J Y
authors.initials: JY
authors.lastname: Byun
authors.forename: K S
authors.initials: KS
authors.lastname: Cho
authors.forename: S H
authors.initials: SH
authors.lastname: Kim
mesh_terms: D000328:Adult; D000368:Aged; D001948:Brenner Tumor / Q000175:diagnosis*; D002114:Calcinosis / Q000175:diagnosis; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging; D008875:Middle Aged; D010051:Ovarian Neoplasms / Q000175:diagnosis*; D010053:Ovary / Q000000981:diagnostic imaging / Q000473:pathology; D012189:Retrospective Studies; D014057:Tomography, X-Ray Computed