Rapidly recurring ovarian fibrosarcoma after optimal debulking surgery in a 46-year-old woman.

Ovarian fibrosarcoma is an extremely rare tumour with no universally accepted guidelines for treatment. We present a 46-year-old nulliparous woman with ovarian fibrosarcoma who mainly presented with a painful abdominal enlargement. Optimal debulking surgery was performed, and a specimen of the tumour was examined. A frozen section examined during surgery revealed spindle cell morphology, raising the suspicion of ovarian fibrosarcoma, which was later confirmed by immunohistochemistry staining. Our patient refused to undergo chemotherapy and died 3 months after surgery due to tumour recurrence. Although no clear consensus exists for administering chemotherapy for fibrosarcoma, some published case reports have shown a lower chance of recurrence and better prognosis in patients who undergo chemotherapy compared with our patient.