Conclusions: The thyroglossal duct cyst must be studied in the adult population through fine-needle aspiration biopsy (FNAB) and a frozen section in cases in which FNAB is inconclusive or unavailable.

[21] In conclusion, the thyroglossal duct cyst must be studied in the adult population through FNAB or a frozen-section study in doubtful cases or when FNAB is not available. When a diagnosis of a ...

Your daughter's cyst sounds like a thyroglossal duct cyst. This is a defect which is present from birth but does not show itself until later in childhood, most commonly in preschools aged children ...