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Related Experiment Videos

Lingual thyroid in two natural brothers.

F Y Defoer1, C Mahler

  • 1Department of endocrinology, A. Z. Middelheim, Antwerp, Belgium.

Journal of Endocrinological Investigation
|January 1, 1990
PubMed
Summary

Two brothers were diagnosed with lingual thyroid, a rare condition where thyroid tissue is found in the tongue. This suggests a potential genetic link for this rare thyroid disorder.

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Area of Science:

  • Endocrinology
  • Genetics
  • Nuclear Medicine

Background:

  • Hypothyroidism diagnosis can reveal rare anatomical variations.
  • Thyroid tissue is typically located in the neck.
  • Lingual thyroid is a rare congenital anomaly.

Observation:

  • Technetium-99m (Tc99m) scanning for hypothyroidism identified a lingual thyroid in two brothers.
  • No thyroid tissue was detected in the expected cervical location in either individual.
  • Both brothers had no prior family history of thyroid disease.

Findings:

  • The simultaneous diagnosis in siblings suggests a possible inherited component of lingual thyroid.
  • Levothyroxine substitution therapy led to normal development in both affected individuals.

Implications:

  • This case highlights the importance of considering genetic factors in rare congenital thyroid conditions.
  • Further research into the inheritance patterns of lingual thyroid is warranted.
  • Early diagnosis and management are crucial for normal development.

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