DOI: 10.36347/sjmcr.2023.v11i10.002

Pages: 1729-1732

Introduction: Malignant struma ovarii is a rare tumor, Due its rarity treatments and follow-up approaches are not clearly standardized. Case Presentation: we present a case of a 29 -year-old, nulliparous woman with metastatic malignant struma ovarii revealed by abnormal vaginal bleeding and abdominal-pelvic pain. After surgical resection, the patient had complementary radioiodine therapy (131I) after total thyroidectomy. She received a treatment dose of 100 mCi of 131I followed by post-therapy whole-body scintigraphy. Discussion: Histological diagnosis of malignant struma ovarii is similar to that of well differentiated thyroid carcinoma. there are no guidelines regarding the management of this type of cancer. After surgical resection of malignant struma ovarii, adjuvant therapy with thyroidectomy followed by radioactive 131 I therapy and suppressive thyroxine therapy is suggested. The same follow-up as thyroid cancer is commonly adopted, with abdomino-pelvic evaluation. Conclusion: Large clinical studies are needed to standardize the care of patients with malignant struma ovarii.