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Related Experiment Videos

Struma ovarii: hyperthyroidism in a postmenopausal woman.

D E March1, A G Desai, C H Park

  • 1Department of Radiology, Thomas Jefferson University Hospital, Philadelphia, PA 19107.

Journal of Nuclear Medicine : Official Publication, Society of Nuclear Medicine
|February 1, 1988
PubMed
Summary

A rare ovarian tumor, struma ovarii, caused hyperthyroidism in a postmenopausal woman. Radioactive iodine uptake in the pelvis confirmed the diagnosis, highlighting the need for pelvic imaging in specific hyperthyroidism cases.

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Area of Science:

  • Endocrinology
  • Gynecologic Oncology
  • Nuclear Medicine

Background:

  • Struma ovarii is a rare germ cell tumor composed of mature thyroid tissue.
  • Hyperthyroidism is a common endocrine disorder, but ovarian causes are infrequent.
  • Postmenopausal hyperthyroidism requires thorough investigation to identify the underlying cause.

Observation:

  • A postmenopausal woman presented with symptoms of hyperthyroidism.
  • An ovarian tumor was identified as the source of excessive thyroid hormone production.
  • The ovarian tumor showed significant uptake of both technetium-99m pertechnetate and iodine-131.

Findings:

  • The case confirms struma ovarii as a cause of hyperthyroidism.
  • Radionuclide imaging, including [99mTc]pertechnetate and [131I]iodine uptake, is crucial for preoperative diagnosis.

Related Experiment Videos

  • The ovarian tumor's high uptake distinguished it from cervical thyroid gland activity.

    • Implications:

    • Pelvic imaging should be considered in postmenopausal women with unexplained hyperthyroidism and low cervical thyroid [131I]iodine uptake.
    • Early diagnosis of struma ovarii can prevent prolonged or incorrect treatment for hyperthyroidism.
    • This case underscores the importance of a comprehensive diagnostic approach in endocrinology.