Updated: 6/8/2018

Lingual Thyroid

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Introduction
  • Embryological defect with failed migration of the thyroid gland from tongue base
    • usually located in the midline neck
    • typically is hypoactive thyroid tissue
Presentation
  • Symptoms 
    • dysphagia for solids
    • hypothyroidism if tissue is hypoactive
  • Physical exam
    • palpation of midline mass
Evaluation
  • 123I scan
    • identifies location of thyroid tissue
Treatment
  • Surgical
    • excision if mass is obstructive
      • commonly requires hormone supplementation following excision as this may be the only functioning thyroid tissue in the body
  • Medical
    • thyroxine supression
    • radioactive iodine ablation
 

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