title: Comparison between primary peritoneal and epithelial ovarian carcinoma: a population-based study.
abstract: OBJECTIVE
  This study was undertaken to characterize primary peritoneal carcinoma (PPC) compared with ovarian carcinoma (OvC).
  
  
  METHODS
  Within the framework of a nationwide epidemiologic Israeli study, 95 PPC patients were identified and compared with 117 FIGO stage III-IV epithelial OvC patients matched by age and continent of birth. Data were abstracted from medical records and personal interviews.
  
  
  RESULTS
  Our data confirm the similarities between PPC and OvC. A higher rate of abdominal distention, volume of ascites, and malignant cells in ascitic fluid and lower rate of pelvic palpable mass and personal breast cancer history were found in the PPC compared with the OvC group. The overall survival was similar in both groups (30-33 months). In optimally cytoreduced patients, survival was better in the OvC group. Diameter of residual disease was associated with better survival only in the OvC group.
  
  
  CONCLUSIONS
  The clinical differences do not enable a preoperative distinction between the neoplasms.
authors.affiliation: Gynecologic Oncology Unit, Department of Obstetrics and Gynecology, E. Wolfson Medical Center, Holon, Israel.
authors.forename: Giulia
authors.initials: G
authors.lastname: Barda
authors.forename: Joseph
authors.initials: J
authors.lastname: Menczer
authors.forename: Angela
authors.initials: A
authors.lastname: Chetrit
authors.forename: F
authors.initials: F
authors.lastname: Lubin
authors.forename: Dani
authors.initials: D
authors.lastname: Beck
authors.forename: Benjamin
authors.initials: B
authors.lastname: Piura
authors.forename: Marek
authors.initials: M
authors.lastname: Glezerman
authors.forename: Baruch
authors.initials: B
authors.lastname: Modan
authors.forename: Siegal
authors.initials: S
authors.lastname: Sadetzki
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D018284:Cystadenocarcinoma, Serous / Q000453:epidemiology / Q000209:etiology / Q000401:mortality / Q000473:pathology; D005260:Female; D006801:Humans; D007557:Israel / Q000453:epidemiology; D008875:Middle Aged; D009367:Neoplasm Staging; D010051:Ovarian Neoplasms / Q000453:epidemiology* / Q000209:etiology / Q000401:mortality / Q000473:pathology; D010534:Peritoneal Neoplasms / Q000453:epidemiology* / Q000209:etiology / Q000401:mortality / Q000473:pathology; D012307:Risk Factors; D016019:Survival Analysis