An ectopic thyroid gland is one which is located in a location other than the normal position anterior to the laryngeal cartilages.
The during embryological development, the thyroid gland migrates down from the foramen caecum at the posterior aspect of the tongue, to its permanent location. This normal migration can be halted at any point, or indeed can go 'off-target' with thyroid tissue coming to rest in unusual location within the neck.
As imaging findings (other than location) are identical irrespective of location, the discussion on ectopic thyroids is continued as part of the lingual thyroid article.
- 1. Maxillofacial Imaging. T.A. Larheim, P.-L. Westesson. Springer ISBN:3540786856 (find it at amazon.com)
- 2. Surgical pathology of the head and neck. edited by Leon Barnes. New York : M. Dekker, c2001. ISBN:0824701097 (find it at amazon.com)
- 3. Teaching atlas of head and neck imaging. edited by Robert Lufkin, Alexandra Borges, and Pablo Villablanca. New York : Thieme, 2000. ISBN:0865776911 (find it at amazon.com)
Synonyms & Alternative Spellings
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|Ectopic thyroid gland||✗|