Synonyms: thyroglossal duct cyst
The thyroglossal duct connects the thyroid to the tongue between the fourth and seventh weeks of development. This duct passes through the muscles of the tongue and then anterior to the hyoid bone and larynx and normally involutes by the tenth week of development. It is thought that a thyroglossal duct cyst (TGDC) represents a segment of the duct that fails to regress and consequently differentiates into epithelial-lined cysts1 .
This is a companion discussion topic for the original article at https://patient.info/doctor/thyroglossal-cysts