title: Frequency of ovarian endometriosis in epithelial ovarian cancer patients.
abstract: OBJECTIVE
  The aim of this study was to determine the frequency of endometriosis in epithelial ovarian cancer patients.
  
  
  METHODS
  Patients who had undergone epithelial ovarian cancer surgery between 2000 and 2004 were subjected to a retrospective analysis. The analysis focused on the presence of ovarian endometriosis, histological types and stages of ovarian cancer, treatment types and five-year survival rate.
  
  
  RESULTS
  Out of the 210 operated ovarian cancer patients, 23 had coexisting ovarian endometriosis. Ovarian endometriosis was detected in 3.5% (4 of 113 patients) of cases with serous ovarian cancer, in 31.6% (12 of 38 patients) of cases with endometrioid, and in 36.8% (7 of 19 patients) of cases with clear cell ovarian cancer. The treatment of ovarian cancer patients was a combination of surgery and chemotherapy.
  
  
  CONCLUSIONS
  Endometriosis was most frequently present in patients with clear cell (36.8%) and endometrioid ovarian cancers (31.6%). The five-year survival rate for ovarian cancer patients in all stages was 39.1%.
authors.affiliation: University of Belgrade, School of Medicine, Clinic of Gynaecology and Obstetrics Narodni Front, Belgrade, Serbia.
authors.forename: O
authors.initials: O
authors.lastname: Dzatic-Smiljkovic
authors.forename: M
authors.initials: M
authors.lastname: Vasiljevic
authors.forename: M
authors.initials: M
authors.lastname: Djukic
authors.forename: R
authors.initials: R
authors.lastname: Vugdelic
authors.forename: J
authors.initials: J
authors.lastname: Vugdelic
mesh_terms: D018262:Adenocarcinoma, Clear Cell / Q000150:complications / Q000453:epidemiology / Q000628:therapy; D000328:Adult; D000368:Aged; D018269:Carcinoma, Endometrioid / Q000150:complications / Q000453:epidemiology / Q000628:therapy; D000077216:Carcinoma, Ovarian Epithelial; D003131:Combined Modality Therapy; D004715:Endometriosis / Q000150:complications / Q000453:epidemiology* / Q000628:therapy; D005260:Female; D006801:Humans; D008875:Middle Aged; D009367:Neoplasm Staging; D009375:Neoplasms, Glandular and Epithelial / Q000150:complications / Q000453:epidemiology* / Q000628:therapy; D010051:Ovarian Neoplasms / Q000150:complications / Q000453:epidemiology* / Q000628:therapy; D012189:Retrospective Studies; D055771:Serbia / Q000453:epidemiology