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Related Experiment Videos

Ectopic submandibular thyroid tissue.

T Aköz1, B Erdogan, M Ayhan

  • 1Ankara Numune Hospital, Department of Otolaryngology, Turkey.

Revue De Laryngologie - Otologie - Rhinologie
|March 25, 1999
PubMed
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A rare case of ectopic thyroid tissue in the submandibular region was surgically removed from a 66-year-old male. This finding highlights rare developmental anomalies of the thyroid gland.

Area of Science:

  • Endocrinology
  • Surgical Pathology
  • Developmental Biology

Background:

  • Ectopic thyroid tissue is a rare congenital condition where thyroid tissue is found outside its normal location.
  • The thyroid gland typically develops in the neck and descends to its normal position by the 7th week of gestation.
  • Aberrant descent or developmental anomalies can lead to ectopic thyroid tissue in various locations.

Observation:

  • A 66-year-old male presented with a mass in the right submandibular region.
  • Surgical excision of the mass was performed.
  • Histologic examination confirmed the mass to be ectopic thyroid tissue.

Findings:

  • The patient had a normal thyroid gland in its usual anatomical location.
  • Thyroid function tests were within normal limits.

Related Experiment Videos

  • Literature review revealed only 4 previously reported cases of submandibular ectopic thyroid tissue, underscoring its rarity.
  • Implications:

    • This case contributes to the limited understanding of ectopic thyroid tissue, particularly in the submandibular region.
    • It emphasizes the importance of considering developmental anomalies in the differential diagnosis of neck masses.
    • Further research into the embryogenesis of ectopic thyroid tissue may elucidate its origins and potential clinical significance.