See Also: thyrolingual duct(medicine)
thyrolingual(medicine)
thyrolingual cyst(medicine)
cyst, thyrolingual(medicine)
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thyrolingual duct (medicine)


thyrolingual duct -->
thyroglossal duct


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 caecum; occasionally, its incomplete regression results in the formation of cysts along its embryonic course.

See: pyramidal lobe of thyroid gland.

Synonym: ductus thyroglossus, thyrolingual duct.