Malignant Struma Ovarii: Always expect the unexpected

A practical guide to recognising malignant struma ovarii, interpreting pathology findings, and managing this rare ovarian tumour.

  • CPD: 1HR
  • Case Study
  • Instructor: Dr. Amalika Edirisinghe
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Course contents

This course explores the diagnosis and management of struma ovarii, with a focus on papillary thyroid carcinoma arising within this rare ovarian teratoma. Through a real clinical case, you'll learn how to recognise atypical presentations, understand the role of histopathology and molecular testing, and apply evidence-based management strategies for optimal patient care.
You will gain practical insights into:
  • Struma ovarii is a rare ovarian teratoma composed predominantly of thyroid tissue
  • Papillary thyroid carcinoma can arise within struma ovarii and may be difficult to diagnose
  • Histopathological assessment remains the cornerstone of diagnosis
  • Molecular testing can support diagnosis and guide management in selected cases
  • Unexplained hyperthyroidism with a normal thyroid gland should raise suspicion for struma ovarii
  • Long-term follow-up should mirror the management principles of thyroid carcinoma, including surveillance for recurrence