Four Cases of Thyroglossal Duct Cyst, which was Discovered in the Root of the Tongue in the Neonatal Phase and Early Phase of the Neonate and Infant

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We reported the clinical symptoms and method of discovery of 4 cases of thyroglossal duct cyst in the root of tongue, which is a relatively rare congenital cyst.
In all cases, the symptoms developed in the neonate at about 1 month after birth, and the cyst was discovered in the neonatal phase and in the early infant stage.
The symptoms noticed by family members and nursing personnel included cyanosis/shortness of breath, which appeared repeatedly at feeding or weeping, a weak cry, a hoarse voice, and low weight gain. In addition, all symptoms were accompanied by the symptoms of respiratory disorder, such as intermittent retracted respiration and stridor at inspiration.
The cyst was discovered at hospitalization in all cases, and could be detected by tongue depression or by intraoral examination with a laryngscope. It was surgically removed rapidly.