Thyroglossal tract anomalies.

Thyroglossal tract anomalies present most frequently before the second decade of life. Investigations should include ultrasound and thyroid isotope scan to demonstrate the presence of other functioning thyroid tissue prior to excision. Cysts demonstrating echogenic material centrally should be considered to be inflamed and surgical exploration carried out under antibiotic cover to minimize postoperative infection. Total excision of the thyroglossal tract anomaly must include the body of the hyoid bone to prevent recurrence and reduce the risk of further symptoms.