[Préservation de la fertilité avant traitement d'un cancer de l'ovaire].

FERTILITY PRESERVATION BEFORE OVARIAN MALIGNANCY TREATMENT While most ovarian epithelial malignancies affect postmenopausal women, 12% occur in reproductive age patients. In addition, borderline ovarian tumors and rare non epithelial ovarian tumors are diagnosed in young patients as well. The prognosis of early-stage epithelial tumors, non-epithelial and frontier tumors is good. Increased knowledge in this specific field now allows the development of fertility preservation strategies. They include conservative surgery when applicable, associated with oocyte and / or ovarian tissue cryopreservation. Indications remain limited, and any decision must be validated by a multidisciplinary expert committee. The different strategies depend on specific tumoral or genetic context.