Latent Primary Papillary Microtumor in Thyroglossal Duct Cyst Wall - A Rare Case Report with Review of Literature

Abstract

Thyroglossal duct cyst (TDC) is a common congenital midline neck mass. Generally TDCs are benign and incidence of malignancy in TDC is less than 1%. Majority of the tumors arise from thyroid remnants in the wall of the cyst and the common histologic type is papillary carcinoma.We report a 25-years-old man diagnosed as TDC based on clinical and radiological findings. Histopathological examination confirmed TDC with an incidental intracystic latent papillary microtumor. The papillary microtumor was confirmed with Immuno histochemical study using Cytokeratin-19 (CK 19) marker. The present case report emphasizes the histopathological features and prognostic significance of papillary microtumor in TDC with review of literature.

Keywords

• thyroglossal duct cyst
• papillary micro tumor
• cytokeratin