title: Survival benefit associated with surgical oophorectomy in patients with colorectal cancer metastatic to the ovary.
abstract: OBJECTIVE
  The purpose of this study was to determine the outcome of patients with colorectal cancer metastatic to the ovary and the impact of surgical oophorectomy on the outcome.
  
  
  METHODS
  We conducted a retrospective evaluation of patients with metastatic colorectal cancer to the ovary. Of 3776 female patients with colorectal cancer seen at MD Anderson from 2001-2008, 110 (2.9%) were identified as having metastases to the ovary. The Kaplan-Meier method and log-rank test were used to examine the survival functions.
  
  
  RESULTS
  Seventy-one patients (64.5%) had disease metastatic to the ovary at the time of initial presentation; in 39 patients (35.5%) the ovaries were a site of relapse after previous curative colorectal surgical resection. Patients who presented with ovarian relapse after previous colorectal surgery and who underwent oophorectomy had a median survival of 50 months compared with 12 months for those who did not (P < .0001). Patients with metastatic disease at the time of presentation who underwent oophorectomy had a median survival of 39.4 months vs. 18.2 months for those who did not.
  
  
  CONCLUSIONS
  This retrospective analysis suggests that women with metastatic colorectal cancer metastatic to the ovary may derive a survival benefit from palliative oophorectomy.
authors.affiliation: Department of Gastrointestinal Medical Oncology, MD Anderson Cancer Center, Houston, TX 77030-4009, USA. cgarrett@mdanderson.org
authors.forename: Christopher R
authors.initials: CR
authors.lastname: Garrett
authors.forename: Ben
authors.initials: B
authors.lastname: George
authors.forename: Chitra
authors.initials: C
authors.lastname: Viswanathan
authors.forename: Nishin A
authors.initials: NA
authors.lastname: Bhadkamkar
authors.forename: Sijin
authors.initials: S
authors.lastname: Wen
authors.forename: Veerarabhadran
authors.initials: V
authors.lastname: Baladandayuthapani
authors.forename: Y Nancy
authors.initials: YN
authors.lastname: You
authors.forename: Edmund S
authors.initials: ES
authors.lastname: Kopetz
authors.forename: Michael J
authors.initials: MJ
authors.lastname: Overman
authors.forename: Bryan K
authors.initials: BK
authors.lastname: Kee
authors.forename: Cathy
authors.initials: C
authors.lastname: Eng
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D015179:Colorectal Neoplasms / Q000235:genetics / Q000473:pathology* / Q000601:surgery; D005260:Female; D006801:Humans; D053208:Kaplan-Meier Estimate; D008875:Middle Aged; D009154:Mutation; D010051:Ovarian Neoplasms / Q000556:secondary / Q000601:surgery*; D010052:Ovariectomy; D010166:Palliative Care; D011518:Proto-Oncogene Proteins / Q000235:genetics; D048493:Proto-Oncogene Proteins B-raf / Q000235:genetics; D016283:Proto-Oncogene Proteins p21(ras); D012189:Retrospective Studies; D013997:Time Factors; D055815:Young Adult; D018631:ras Proteins / Q000235:genetics
chemical_list: C117307:KRAS protein, human; D011518:Proto-Oncogene Proteins; C482119:BRAF protein, human; D048493:Proto-Oncogene Proteins B-raf; D016283:Proto-Oncogene Proteins p21(ras); D018631:ras Proteins