Skip to Content
Medical Term:

thyroglossal duct


Definition: a transitory endodermal tube in the embryo, carrying thyroid-forming tissue at its caudal end; normally, the duct disappears after the thyroid has moved to its definitive location in the neck; its point of origin is regularly marked on the root of the adult tongue by the foramen cecum; occasionally, its incomplete regression results in the formation of cysts along its embryonic course.

Synonym(s): ductus thyroglossusTA, thyrolingual duct

See Also: pyramidal lobe of thyroid gland

© Copyright 2016 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.