Successful in vivo retrieval of oocytes after ovarian stimulation for fertility preservation before oophorectomy by laparotomy for a young patient with ovarian cancer: Case report and review of literature

•Mature oocytes can be retrieved in-vivo during open surgery for gynecologic cancers.•This approach should be considered when transvaginal access is contra-indicated.•The technique is feasible, safe and avoids any time of ischemia for gametes.