Thyroglossal duct cyst: An intralaryngeal extension
Hitesh Verma, Arjun Dass, Surinder K Singhal, Nitin Gupta, Raj Pal Singh Punia
Accepted 20 May, 2014.
Citation: Verma H, Dass A, Singha SK, Gupta N, Punia RPS (2014). Thyroglossal Duct Cyst: An Intralaryngeal Extension. Journal of Diseases and Disorders 1(2): 005-009.
Copyright: © 2014 Verma et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are cited.
During fetal development, epithelium in the floor of pharynx evaginates and form thyroglossal tract. The duct descends in midline of neck, where its distal end becomes bi-lobed and further differentiates into thyroid gland. The non-obliteration of thyroglossal tract during development is responsible for the formation of thyroglossal duct cyst (TDC). Thyroglossal duct cysts are the most common congenital abnormality in the neck. Thyroglossal fistulae are acquired, which occur as a result of accidental and surgical rupture of cyst. In our patient, the cystic lesion was located at the infrahyoid level and there was an intralaryngeal extension of the lesion. The intralaryngeal location of a thyroglossal duct cyst is rare and only a few cases have been reported.
Key words: Thyroglossal duct cyst, infrahyoid, sistrunk operation, intralaryngeal extension, pre-epiglottic space