Dx… THYROGLOSSAL CYST…
Thyroglossal duct cyst (TDC) is usually diagnosed clinically, but ultrasonography is the preferred imaging technique in children.
The most common complications of TDC are infection and malignancy, the latter of which occurs in 1-4% of cases.
TDC is the most common nonodontogenic cyst in the neck, representing approximately 70% of all congenital neck abnormalities.
It occurs as a result of anomalous development and migration of the thyroid gland during the fourth through eighth weeks of gestation.
It is a cystic remnant along the course of the thyroglossal duct between the foramen cecum of the tongue base and the thyroid bed in the visceral space of the infrahyoid neck.