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Case Reports
. 2015 Jun 19;32(1):67-70.
doi: 10.5152/UCD.2015.2916. eCollection 2016.

Missed retrosternal ectopic thyroid tissue in a patient operated for multinodular goiter

Uğur Kesici  1 , Özgür Koral  2 , Savaş Karyağar  3 , Sevgi Kesici  4 , Aysun Yılbaş  5 , Sevda Karyağar  3 , Emine Mataracı  6 , İlker Mataracı  2
Affiliations
Case Reports

Missed retrosternal ectopic thyroid tissue in a patient operated for multinodular goiter

Uğur Kesici et al. Ulus Cerrahi Derg. .

Abstract

Ectopic thyroid tissue has been found from the tongue to the diaphragm. The most common ectopic thyroid tissue has been found in the tongue, submandibular region, cervical lymph nodes, larynx, trachea, oesophagus, mediastinum, diaphragm and heart respectively. "Forgotten goiter" is an extremely rare disease which is defined as a mediastinal thyroid mass found after total thyroidectomy. In this case report, we discussed a 49 year-old female patient whose retrosternal ectopic thyroid tissue was detected by thyroid scintigraphy taken in postoperative period after total thyroidectomy performed with diagnosis of multinodular goiter. Papillary carcinoma was determined by the histopathological examination. Ectopic thyroid tissue was removed by performing sternotomy. We did not observe any postoperative surgical complications. 100 mCi dose of radioactive iodine was administered to the patient. Retrosternal ectopic thyroid tissue detected after total thyroidectomy is a rarely encountered condition. Therefore, retrosternal ectopic thyroid tissue existence should be definitely kept in mind in patients with no increase in thyroid stimulating hormone level after total thyroidectomy.

Keywords: Total thyroidectomy; ectopic; goiter; retrosternal; thyroid.

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Figures

Figure 1.
Figure 1.
Image of CT-scan CT: computed tomography
Figure 2.
Figure 2.
Thyroid tissue on thymus with approximately 3 × 4 cm size
Figure 3.
Figure 3.
Residual thyroid tissue was not observed after RAI treatment in thyroid scintigraphy RAI: radioactive iodine
See this image and copyright information in PMC

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