Korean Journal of Head & Neck Oncology (대한두경부종양학회지)

The Korean Society for Head and Neck Oncology (대한두경부종양학회)
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Intrathyroid Thyroglossal Duct Cyst Extending into the Mediastinum: A Case Report and Review of Literature

종격동내 위치한 갑상선 내 갑상설관 낭종: 증례 보고 및 문헌 고찰

  • Lee, Chan Mi (Department of Otolaryngology-HNS, Chonbuk National University, Medical School) ;
  • Hong, Yong Tae (Department of Otolaryngology-HNS, Chonbuk National University, Medical School)
  • 이찬미 (전북대학교 의과대학 이비인후과학교실) ;
  • 홍용태 (전북대학교 의과대학 이비인후과학교실)
  • Received : 2021.10.14
  • Accepted : 2021.12.14
  • Published : 2022.05.30
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Abstract

Thyroglossal duct cyst (TGDC) is the most common congenital cyst in the neck and usually presents in children. It is most commonly located at the infrahyoid level. However, intrathyroid TGDC in the adult is extremely rare and its pathogenesis remains unclear. Curiously, an intrathyroid TGDC was found on the lateral aspect of the inferior pole of the thyroid gland. Given the unique position of this lesion, and its capacity to stimulate other nodules in the thyroid, it should be differentiated from other lateral neck masses, such as: thymic cysts, branchial cleft cysts, cystic hygroma, lipomas, lymphadenopathies, cervical teratomas, and lymphomas. In this case, a separate cystic mass was found in the right inferior pole of the thyroid gland and extended to the mediastinum. We confirmed it as TGDC by pathology and histological examination.

Keywords

Acknowledgement

This paper was supported by Fund of Biomedical Research Institute of Jeonbuk National University Hospital.

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