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A Case of Subclinical Hypothyroidism with Lingual and Right Pretracheal Ectopic Thyroid.

Kim MS, Kong YH, Lee DY - J Clin Res Pediatr Endocrinol (2015)

Bottom Line: The masses were detected to be dual ectopic thyroid glands by ultrasonography, computed tomography and 99m-technetium pertechnetate thyroid scan.The patient also had subclinical hypothyroidism.She was treated with oral levothyroxine and the masses slightly decreased in size.

View Article: PubMed Central - PubMed

Affiliation: Chonbuk National University Chonbuk National University Medicine School,, and Research Institute of Clinical Medicine of Chonbuk National University-Biomedical Institute of Chonbuk National University Hospital, Department of Pediatrics, Jeonju, Korea Phone: +82 63 250 1469 E-mail: leedy@jbnu.ac.kr.

ABSTRACT
Ectopic thyroid tissue is most commonly located in a single location, this being the lingual area. Presentation with two ectopic thyroid foci is quite unusual. A girl patient aged 7 years who presented with complaints of two masses in the right anterior neck and submandibular area is reported. Her growth pattern and development were normal. The masses were detected to be dual ectopic thyroid glands by ultrasonography, computed tomography and 99m-technetium pertechnetate thyroid scan. The patient also had subclinical hypothyroidism. She was treated with oral levothyroxine and the masses slightly decreased in size. The repeated thyroid function tests were within the normal limits. Thyroid function tests and imaging studies need to be conducted in all patients with anterior neck masses.

No MeSH data available.


Related in: MedlinePlus

Neck computed tomography (A) and 99m-technetium pertechnetate thyroid scintigraphy (B) showing dual ectopic thyroid on lingual and right pretracheal portions.
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f2: Neck computed tomography (A) and 99m-technetium pertechnetate thyroid scintigraphy (B) showing dual ectopic thyroid on lingual and right pretracheal portions.

Mentions: The masses were evaluated using ultrasonography (USG) and computed tomography (CT). USG examination revealed well-defined masses with heterogeneous echogenicity and the thyroid gland was not in the expected cervical location. Neck CT revealed aberrant thyroid tissue as a 1.3x2.3 cm, round-shaped, high-density mass in the right pretracheal area and another 1.4x1.6 cm mass with the same characteristics in the region of the tongue base (Figure 2A). A 99m-technetium pertechnetate thyroid scintigraphy was performed, which demonstrated two ectopic areas of uptake (upper anterior neck and lingual areas), confirming dual thyroid ectopia (Figure 2B). There was no uptake in the normal anatomical location of the thyroid gland. Based on these findings, a diagnosis of dual ectopic thyroid was made. Biochemical determinations were consistent with a state of subclinical hypothyroidism. Serum triiodothyronine level was 1.7 ng/mL (normal, 0.9-2.4 ng/mL); free thyroxine (fT4), 17.2 pmol/L (normal, 10-28 pmol/L) and thyroid-stimulating hormone (TSH) level was 9.49 mIU/L (normal, 0.7-6.4 mIU/L).


A Case of Subclinical Hypothyroidism with Lingual and Right Pretracheal Ectopic Thyroid.

Kim MS, Kong YH, Lee DY - J Clin Res Pediatr Endocrinol (2015)

Neck computed tomography (A) and 99m-technetium pertechnetate thyroid scintigraphy (B) showing dual ectopic thyroid on lingual and right pretracheal portions.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4563188&req=5

f2: Neck computed tomography (A) and 99m-technetium pertechnetate thyroid scintigraphy (B) showing dual ectopic thyroid on lingual and right pretracheal portions.
Mentions: The masses were evaluated using ultrasonography (USG) and computed tomography (CT). USG examination revealed well-defined masses with heterogeneous echogenicity and the thyroid gland was not in the expected cervical location. Neck CT revealed aberrant thyroid tissue as a 1.3x2.3 cm, round-shaped, high-density mass in the right pretracheal area and another 1.4x1.6 cm mass with the same characteristics in the region of the tongue base (Figure 2A). A 99m-technetium pertechnetate thyroid scintigraphy was performed, which demonstrated two ectopic areas of uptake (upper anterior neck and lingual areas), confirming dual thyroid ectopia (Figure 2B). There was no uptake in the normal anatomical location of the thyroid gland. Based on these findings, a diagnosis of dual ectopic thyroid was made. Biochemical determinations were consistent with a state of subclinical hypothyroidism. Serum triiodothyronine level was 1.7 ng/mL (normal, 0.9-2.4 ng/mL); free thyroxine (fT4), 17.2 pmol/L (normal, 10-28 pmol/L) and thyroid-stimulating hormone (TSH) level was 9.49 mIU/L (normal, 0.7-6.4 mIU/L).

Bottom Line: The masses were detected to be dual ectopic thyroid glands by ultrasonography, computed tomography and 99m-technetium pertechnetate thyroid scan.The patient also had subclinical hypothyroidism.She was treated with oral levothyroxine and the masses slightly decreased in size.

View Article: PubMed Central - PubMed

Affiliation: Chonbuk National University Chonbuk National University Medicine School,, and Research Institute of Clinical Medicine of Chonbuk National University-Biomedical Institute of Chonbuk National University Hospital, Department of Pediatrics, Jeonju, Korea Phone: +82 63 250 1469 E-mail: leedy@jbnu.ac.kr.

ABSTRACT
Ectopic thyroid tissue is most commonly located in a single location, this being the lingual area. Presentation with two ectopic thyroid foci is quite unusual. A girl patient aged 7 years who presented with complaints of two masses in the right anterior neck and submandibular area is reported. Her growth pattern and development were normal. The masses were detected to be dual ectopic thyroid glands by ultrasonography, computed tomography and 99m-technetium pertechnetate thyroid scan. The patient also had subclinical hypothyroidism. She was treated with oral levothyroxine and the masses slightly decreased in size. The repeated thyroid function tests were within the normal limits. Thyroid function tests and imaging studies need to be conducted in all patients with anterior neck masses.

No MeSH data available.


Related in: MedlinePlus