Thyroglossal cysts and fistulas
Congenital thyroglossal cyst and fistula, also known as anterior median neck cyst and fistula, is caused by the failure of the thyroglossal duct to degenerate or to completely degenerate and disappear during the development of the thyroid gland. It can occur anywhere between the foramen cecum and the suprasternal notch. The internal fistula opening of the thyroglossal fistula is located at the foramen cecum, and the external fistula opening is on the anterior midline of the neck or slightly to one side. When the cyst is located below the hyoid bone, the fistula connecting the cyst and the foramen cecum can run in front of the hyoid bone, inside the hyoid bone, or behind the hyoid bone, with running behind the hyoid bone being more common.
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Site of disease:
neck
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Infectious :
Not contagious
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Frequent population:
More common in children and young people
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Related symptoms:
Abscess at the root of the tongue
Swelling and tenderness in the hyoid area
Foreign body sensation in the pharynx
Vibration sensation of a foreign body that can be felt under the thyroid cartilage
Long-term unhealed ulcer on the tongue
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Concurrent disease: