title: The MRI features of histologically proven ovarian cystadenofibromas-an assessment of the morphological and enhancement patterns.
abstract: OBJECTIVE
  To assess the morphological and enhancement features of histologically proven cystadenofibromas (CAFs) on magnetic resonance imaging (MRI).
  
  
  METHODS
  Forty-seven histologically proven CAFs (42 benign, five borderline) were retrospectively reviewed. One benign CAF had a synchronous adenocarcinoma in the same ovary. The morphological, signal and enhancement characteristics on MRI were recorded.
  
  
  RESULTS
  The mean long axis diameter of the CAFs was 80 mm. The contralateral ovary was abnormal in 45 % of cases. A solid component was seen in 85 %, which returned low T2-weighted signal in 75 % of CAFs. Septa were seen in 74 % and one CAF was purely cystic. The majority of solid components and septa demonstrated enhancement that was less than the myometrium. Wash-in rates (WIR) of the solid tissue were available for measurement in nine patients with an average WIR of 3.2 l/s.
  
  
  CONCLUSIONS
  This is the largest series describing MRI appearances of histologically proven CAFs. They are typically complex adnexal lesions containing septa, cystic components and solid tissue. The majority of solid components demonstrate low T2 signal and minimal enhancement. Almost half of the cases have an abnormal contralateral ovary.
authors: Imaging Department, Barts and the London NHS Trust, London, UK. yenzhitang@doctors.net.uk
authors: Yen Zhi
authors: YZ
authors: Tang
authors: Sid
authors: S
authors: Liyanage
authors: Priya
authors: P
authors: Narayanan
authors: Anju
authors: A
authors: Sahdev
authors: Aslam
authors: A
authors: Sohaib
authors: Naveena
authors: N
authors: Singh
authors: Andrea
authors: A
authors: Rockall
mesh_terms: D000328:Adult; D000368:Aged; D003287:Contrast Media; D062625:Cystadenofibroma / Q000473:pathology*; D005260:Female; D006801:Humans; D007090:Image Interpretation, Computer-Assisted; D008279:Magnetic Resonance Imaging / Q000379:methods*; D008536:Meglumine; D008875:Middle Aged; D009942:Organometallic Compounds; D010051:Ovarian Neoplasms / Q000473:pathology*; D012189:Retrospective Studies
chemical_list: D003287:Contrast Media; D009942:Organometallic Compounds; D008536:Meglumine; C072417:gadoterate meglumine