When a thyroglossal duct cyst FNAB is diagnostic for carcinoma, a thyroid ultrasound must be performed in order to rule out the presence of thyroid disease. Likewise, if a non-diagnostic FNAB is ...

Hence, a total thyroidectomy was performed. The histologic report was papillary carcinoma of the thyroglossal duct cyst with invasion to the cyst wall and papillary carcinoma of the thyroid gland ...