title: Ascitic fluid cytology in malignant Brenner tumor: a case report.
abstract: BACKGROUND
  Peritoneal effiusion is rare in malignant Brenner tumors and has been found in only 10% of patients.
  
  
  METHODS
  A 77-year-old woman presented with malignant Brenner tumor and ascites. The cytology of the ascitic fluid revealed many activated mesothelial cells intermingled with squamous tumoral cells. These cells were either isolated or arranged in small clusters. They were often round or oval with irregular and moderately hyperchromatic nuclei.
  
  
  CONCLUSIONS
  Presence of squamous cells in ascitic fluid associated with an ovarian tumor should raise the possible diagnosis of malignant Brenner tumor in addition to malignant transformed teratoma and secondary squamous carcinoma of the ovary.
authors: Department of Pathology, Institut Salah Aza'iz, Tunis, Tunisia. maha.driss@rns.tn
authors: Maha
authors: M
authors: Driss
authors: Karima
authors: K
authors: Mrad
authors: Rym
authors: R
authors: Dhouib
authors: Raoudha
authors: R
authors: Doghri
authors: Imen
authors: I
authors: Abbes
authors: Khaled
authors: K
authors: Ben Romdhane
mesh_terms: D000368:Aged; D001201:Ascites / Q000473:pathology*; D001948:Brenner Tumor / Q000473:pathology* / Q000601:surgery; D002467:Cell Nucleus / Q000473:pathology; D005260:Female; D006801:Humans; D010051:Ovarian Neoplasms / Q000473:pathology* / Q000601:surgery