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Dual ectopic thyroid: report of a case.

Tuncay Ulug1, S Arif Ulubil, Faruk Alagol

  • 1Department of Otolaryngology, Istanbul University, Faculty of Medicine, Istanbul, Turkey. tuncaya@veezy.com

The Journal of Laryngology and Otology
|August 7, 2003
PubMed
Summary

This case report details a rare dual ectopic thyroid in a young woman, affecting the lingual and infrahyoid regions. Thyroid scans confirmed the condition, highlighting the importance of imaging for neck masses.

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Area of Science:

  • Endocrinology
  • Surgical Pathology
  • Medical Imaging

Background:

  • Ectopic thyroid tissue, particularly dual occurrences, represents a rare congenital anomaly.
  • Thyroid tissue located outside the normal anatomical position can present diagnostic challenges.

Observation:

  • A 20-year-old female presented with a dual ectopic thyroid, with tissue found in the lingual and infrahyoid areas.
  • Physical examination revealed anterior midline neck swelling and a base-of-tongue mass, with no thyroid tissue in the orthotopic location.
  • Thyroid function tests (Triiodothyronine, Thyroxine, Thyroid-Stimulating Hormone) were within normal limits.

Findings:

  • A technetium-99m sodium pertechnetate thyroid scan confirmed the presence of dual ectopic thyroid tissue.
  • The scan demonstrated a lack of iodine uptake in the normal thyroid gland location.

Related Experiment Videos

  • Surgical removal of the infrahyoid ectopic thyroid was performed for cosmetic reasons; the symptomatic lingual thyroid was managed conservatively.

    • Implications:

    • Thyroid scintigraphy is crucial for evaluating anterior midline neck swellings, especially when ectopic thyroid is suspected.
    • Management strategies for ectopic thyroid tissue should consider patient symptoms, cosmetic concerns, and anatomical location.
    • This case underscores the variability in presentation and management of rare ectopic thyroid conditions.