Papillary carcinoma ansing on a thryroglosal duct cyst is a rare tumor. Since Ucherman described first case in 1915, only 150 cases have been reported. We present clinic evolution and treatment of a new case and review literature and discussion about tumor origin, adequate diagnosis test and treatment. This should include Sistrunk procedure but further surgery on thyroid gland is not accepted b...

BACKGROUND AND PURPOSE Previous reports have suggested that thyroglossal duct cysts (TDCs) appear on sonograms as well-defined cystic masses with thin walls and posterior enhancement. In our experience, however, TDCs have a variable sonographic appearance. We report our findings in 40 patients with TDCs and document the variability of sonographic patterns. METHODS All patients in whom the dia...

Cysts of the thyroglossal duct are common lesions, the majority of which present as a midline swelling in the anterior aspect of the neck. Infection and sinus formation are not uncommon complications, but the development of malignancy within a cyst is very rare. To date only 116 cases have been documented in the world literature.1' 2,3, This report describes a papillary carcinoma arising within...

Intrathyroidal lymphoepithelial cysts are rare, and only 15 such cases have been reported. Although sonography has been performed in some cases, the findings have not been discussed previously. Despite its rarity, the sonographic appearances of this lesion are similar to those of other commonly encountered congenital cystic lesions in the head and neck, such as thyroglossal duct cysts and secon...