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Findings that shed new light on the possible pathogenesis of a disease or an adverse effect
Ectopic mediastinal thyroid tissue: cervical or mediastinum originated?
  1. Mehmet Uludag1,
  2. Adnan Isgor2,
  3. Gurkan Yetkin1,
  4. Bulent Citgez1
  1. 1
    Second General Surgery, Sisli Etfal Training and Research Hospital, Etfal Sokak No:1, Istanbul 34360, Turkey
  2. 2
    Department of Surgery, Golden Horn University, Aksaray, Istanbul 34378, Turkey
  1. M Uludag, drmuludag{at}


A 22-year-old female patient was admitted to our clinic after both clinical and laboratory findings suggested hyperthyroidism. At pre-operative magnetic resonance imaging (MRI), we detected a substernal goitre with lobulated outlines at the inferior of the right lobe that extended 5 cm inferior to the carina. The thyroid mass extended to the mediastinum and was totally extracted by cervical incision. Postoperatively, a residual thyroid mass of 8.5×9×10 cm in size, was detected on MRI at the median part of the anterior mediastinum. The isolated mediastinal thyroid mass was then extracted by sternotomy. We believe that, because of the close anatomical relationship between the thyroid tissue extending cervically and the mass detected in the mediastinum, the mediastinal mass might have developed from the cervical thyroid tissue residues by pushing the cervical thyroid or it might have mechanically entered the mediastinum.

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  • Competing interests: none.

  • Patient consent: Patient/guardian consent was obtained for publication.

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