Papillary carcinoma of thyroglossal cyst

A rare case of papillary carcinoma of the thyroglossal cyst in a 27-year-old female is presented. The diagnosis was established only after histopathological examination of a completely excised thyroglossal cyst. Clinically, no differentiation between a benign cyst and malignancy could be made. A characteristic CT scan finding of nodular soft tissue excrescences in a midline cystic mass suggests the possibility of carcinoma in a thyroglossal cyst and may help in the preoperative diagnosis. Complete excision of the cyst with the thyroglossal tract and a wedge of the hyoid bone is usually sufficient. Long-term follow-up of the patient is recommended