Design: Case report and review of the literature

Setting: Patient in lithotomy position, both arms tucked. No uterine manipulator was used.

Patients or Participants: Single patient selected retrospectively after the final pathology result was obtained.

Interventions: Patient underwent laparoscopic cystectomy of a 6 cm complex cyst of the right mesosalpinx. Peritoneal washings were obtained. No peritoneal or omental implants were seen & appendix looked normal and was not removed.

Measurements and Main Results: NA

Conclusion: Para-tubal borderline tumors are extremely rare. Including our case presentation, a total of twelve are reported; six in adolescent patients. In patients younger than eighteen, all tumors were serous. Therre is no consensus or guidelines on how to diagnose or manage these tumors. further follow-up is required and studies to compare para-tubal to ovarian borderline tumors could be beneficial.