Introduction/Background To present the video of the laparoscopic procedure of a fertility-sparing surgery performed in a 28-year old patient leading to the final diagnosis of non-invasive stage IIIA borderline tumor.

Methodology Medical elements and video files were reviewed in order to present medical history and final video of the procedure. Windows movie maker was used in order to create the final video originated from the original files.

Results A 28-year old patient was admitted with a suspicious mass of 89x76 diameter originated from the right ovary. CA-125 was 53 IU/mL. MRI and transvaginal U/S rather posed the suspicion for a borderline ovarian tumour. No indication of extraovarian disease was made. The decision for fertiity-sparing surgery was made for the patient, including right salpingoophorectomy, peritoneal cytology, peritoneal and omental biopsies. Laparoscopy indicated not only the presence of the right ovarian tumour but also the presence of a left ovarian implant, which was also resected conservatively in order to retain the maximum of left ovarian tissue. Masses were oncologically removed into laparoscopic endobag. The final pathological diagnosis was non-invasive borderline bilateral tumor, however the presence of a vascular omental invasion was also detected upgrading final staging to IIIA. Based on current ESGO recommendations, patient decided to continue with plan of fertilty preservation and has already performed ovarian cryopreservation leading to retrieval of 11 eggs after two consequent stimulations.. Decision of laparoscopic re-operation for contralateral salpingoophorectomy and omentectomy to reassure oncological safety has been made.

Conclusion Laparoscopic surgery for non-invasive advanced-stage borderline tumour is feasible and may give the possibility for fertility preservation.

Disclosures Authors have nothing to disclose.