What Is a Cyst?
9. Thyroglossal Cyst
A thyroglossal cyst is a cyst that forms due to a persistent thyroglossal duct. It can be defined as a lump or irregular neck mass developing from cells that are left over from the formation of the thyroid gland during the developmental stages. Thyroglossal cysts are a common cause of midline neck lumps that occur.
Thyroglossal cysts usually develop during birth. Signs and symptoms include movement of the neck mass during protrusion of the tongue or swallowing. Some may also present with pain in the neck or throat or pain during swallowing. Complications of a thyroglossal cyst include infection, thyroglossal fistula, and thyroglossal duct cyst carcinoma. Diagnosis of a thyroglossal cyst includes a blood test, ultrasound, thyroid scan, and fine needle aspiration.
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