Lingual thyroid gland - multinodular goiter
Diagnosis almost certain
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Lingual thyroid occurs due to the lack of normal caudal migration of the thyroid gland from the foramen caecum down to its normal location anterior to the larynx and upper trachea. Lingual thyroid represents 90% of ectopic thyroid glands, the majority of these showsshow absent thyroid tissue in the normal anatomical location.
It follows all imaging criteria of the normal thyroid gland and is susceptible to all known thyroid pathologies, being symptomatic due to its mass effect when it enlarges as in multinodular goitre. Also, about one-third of patients develop hypothyroidism.
-<p><a href="/articles/lingual-thyroid">Lingual thyroid</a> occurs due to the lack of normal caudal migration of the <a href="/articles/thyroid-gland">thyroid gland</a> from the <a href="/articles/foramen-caecum">foramen caecum</a> down to its normal location anterior to the larynx and upper trachea. Lingual thyroid represents 90% of <a href="/articles/ectopic-thyroid">ectopic thyroid</a> glands, the majority of these shows absent thyroid tissue in the normal anatomical location.</p><p>It follows all imaging criteria of the normal thyroid gland and is susceptible to all known thyroid pathologies, being symptomatic due to its mass effect when it enlarges as in multinodular goitre. Also, about one-third of patients develop hypothyroidism.</p>- +<p><a href="/articles/lingual-thyroid">Lingual thyroid</a> occurs due to the lack of normal caudal migration of the <a href="/articles/thyroid-gland">thyroid gland</a> from the <a href="/articles/foramen-caecum">foramen caecum</a> down to its normal location anterior to the larynx and upper trachea. Lingual thyroid represents 90% of <a href="/articles/ectopic-thyroid">ectopic thyroid</a> glands, the majority of these show absent thyroid tissue in the normal anatomical location.</p><p>It follows all imaging criteria of the normal thyroid gland and is susceptible to all known thyroid pathologies, being symptomatic due to its mass effect when it enlarges as in multinodular goitre. Also, about one-third of patients develop hypothyroidism.</p>
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