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Obstetrics and gynaecology
Bilateral malignant struma ovarii with concurrent thyroid carcinoma
  1. Gwendolyn Glatz1,
  2. Danielle Lann2,
  3. Pritinder Thind3 and
  4. Karim ElSahwi4
  1. 1Medical School, Hackensack Meridian Jersey Shore University Medical Center, Neptune, New Jersey, USA
  2. 2Endocrinology, Hackensack Meridian Jersey Shore University Medical Center, Neptune, New Jersey, USA
  3. 3Radiology, Hackensack Meridian Jersey Shore University Medical Center, Neptune, New Jersey, USA
  4. 4Gynecology Oncology, Hackensack Meridian Jersey Shore University Medical Center, Neptune, New Jersey, USA
  1. Correspondence to Dr Karim ElSahwi; karim.elsahwi{at}hmhn.org

Abstract

Malignant struma ovarii (MSO) is a rare ovarian tumour. The co-occurrence of MSO and thyroid carcinoma is even rarer. There is no established treatment for these patients. We report a postmenopausal woman in her 60s who presented with left hip pain, increased urinary frequency and fatigue. Imaging showed a left adnexal cystic lesion 8.8 cm in diameter and an incidental 12×8 mm right ovarian cyst. She underwent total laparoscopic hysterectomy and bilateral salpingo-oophorectomy, and findings were significant for bilateral stage IA MSO. The metastatic workup showed concurrent papillary thyroid carcinoma. She underwent total thyroidectomy with neck dissection and radioactive iodine (RAI) adjuvant therapy. While thyroid carcinoma management is more standardised, a literature review yielded a wide range of MSO treatments. Recent literature favours conservative management with unilateral salpingo-oophorectomy. RAI therapy in these cases is controversial. We will discuss the literature findings on the optimal treatment of MSO with concurrent thyroid cancer.

  • Gynecological cancer
  • Endocrine cancer
  • Obstetrics and gynaecology

https://doi.org/10.1136/bcr-2024-263514

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    Footnotes

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    • Contributors The following authors were responsible for drafting of the text, sourcing and editing of clinical images, investigation results, drawing original diagrams and algorithms and critical revision for important intellectual content: GG, KE, DL, PT. The following authors gave final approval of the manuscript: GG, KE, DL, PT. KE is the guarantor.

    • Funding The authors have not declared a specific grant for this research from any funding agency in the public, commercial or not-for-profit sectors.

    • Case reports provide a valuable learning resource for the scientific community and can indicate areas of interest for future research. They should not be used in isolation to guide treatment choices or public health policy.

    • Competing interests None declared.

    • Provenance and peer review Not commissioned; externally peer reviewed.