Risk factors for recurrence of borderline ovarian tumours: A tertiary centre experience.

The aim of this study was to evaluate the risk factors for recurrence of borderline ovarian tumours. This study investigated 127 women who were finally diagnosed with borderline epithelial ovarian tumours. Most of them were diagnosed in stage I (83.4%). With a median follow-up of 81.8 months (range: 14-205), the median time to recurrence was 22.4 months (range: 3-74). Five-year recurrence-free survival (RFS) and overall survival (OS) rates were 85.8% and 97.6%, respectively. In multivariate analysis, invasive implants and fertility-sparing surgery were found to be independent prognostic factors for 5-year RFS. Overall, 20 patients (15.7%) experienced relapse within the observation period. Although there is no consensus about high-risk category of borderline ovarian tumours, invasive implants and conservative surgery were closely related to the recurrence. Patients presenting these risk factors should undergo closer follow-up.