Primary Papillary Thyroid Carcinoma in Thyroglossal Duct Cyst in an Adolescent Girl: A Rare Case Report and Literature Review

Thyroglossal duct cysts(TDC) are the most common congenital anomaly resulting in midline masses in children (70%in children and 1% in adults). The occurrence of carcinoma is extremely rare in children as compared to adults. Because of the classical clinical findings of TDC's preoperative diagnosis of malignancies within them are rarely done. Even fine needle aspiration cytology also less valuable in preoperative diagnosis. The final diagnosis is usually an incidental finding in histopathological examination of excised TDC's. We report a rare case of papillary thyroid carcinoma in a 17 year old girl and reviewed in the pertinent background of evidence based literature