title: Cystic struma ovarii presenting with ascites and an elevated CA-125 level. A case report.
abstract: BACKGROUND
  Struma ovarii is a monodermal teratoma that usually presents as a solid pelvic mass. Occasionally the lesions are cystic. Rare cases present with ascites or pseudo-Meigs' syndrome. The association of a cystic struma ovarii with ascites and an elevated CA-125 level is exceptionally rare.
  
  
  METHODS
  A 51-year-old woman presented with ascites and a cystic pelvic mass. There was marked elevation of her CA-125 level. The clinical impression was ovarian carcinoma. Frozen section revealed a multicystic struma ovarii.
  
  
  CONCLUSIONS
  Struma ovarii can mimic ovarian carcinoma clinically, particularly if cystic and associated with ascites and an elevated CA-125 level.
authors.affiliation: Departments of Pathology and Laboratory Medicine and of Obstetrics, Gynecology and Women's Health, University of Medicine and Dentistry of New Jersey-New Jersey Medical School, Newark, USA.
authors.forename: Aqiba
authors.initials: A
authors.lastname: Bokhari
authors.forename: Ginni S
authors.initials: GS
authors.lastname: Rosenfeld
authors.forename: Bemadette
authors.initials: B
authors.lastname: Cracchiolo
authors.forename: Debra S
authors.initials: DS
authors.lastname: Heller
mesh_terms: D001201:Ascites / Q000175:diagnosis / Q000473:pathology*; D014408:Biomarkers, Tumor / Q000032:analysis; D001707:Biopsy, Needle; D018394:CA-125 Antigen / Q000032:analysis*; D003937:Diagnosis, Differential; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007150:Immunohistochemistry; D008539:Meigs Syndrome / Q000175:diagnosis / Q000473:pathology*; D008875:Middle Aged; D010051:Ovarian Neoplasms / Q000175:diagnosis / Q000473:pathology*; D010052:Ovariectomy / Q000379:methods; D013330:Struma Ovarii / Q000175:diagnosis / Q000473:pathology* / Q000601:surgery; D016896:Treatment Outcome
chemical_list: D014408:Biomarkers, Tumor; D018394:CA-125 Antigen