Recurrent borderline ovarian tumor in a patient of reproductive age

Borderline ovarian tumors account for approximately 20% of epithelial ovarian tumors and are frequently diagnosed in women of reproductive age. Therefore, fertility preservation during treatment of these tumors is of particular importance. Organ-preserving surgeries are the preferred treatment method; however, they are associated with an increased risk of disease recurrence. The aim of this study was to present a clinical case of managing a patient with recurrent borderline ovarian tumor and to assess the possibilities of preserving reproductive function using organ-preserving approaches. We report the clinical case of a 36-year-old patient with recurrent serous borderline cystadenoma of the ovary. In 2018, laparoscopic resection of the left ovary was performed, followed by left-sided adnexectomy. Recurrences occurred in 2022 and 2024, requiring repeated surgical interventions. Menstrual function and the possibility of pregnancy planning using assisted reproductive technology were evaluated during follow-up. Organ-preserving surgeries allowed preservation of the patient’s menstrual function and fertility potential despite multiple tumor recurrences. Timely surgical treatment and careful dynamic monitoring contributed to the absence of severe complications and maintenance of reproductive health. Organ-preserving treatment methods for borderline ovarian tumors represent an effective approach to fertility preservation in women of reproductive age. Nevertheless, they require individualized treatment strategies and continuous monitoring, taking into account the patient’s reproductive plans and risk of recurrence.