Abstract
Malignant transformation in thyroglossal duct cyst is an extremely rare occurrence, papillary carcinoma being the most common type of malignancy. In this study, we present our 12-years experience on this rare pathology. Records of all the patients with thyroglossal duct cyst and thyroid malignancies who were managed between January 2011 and December 2022 were reviewed retrospectively. The data was recorded and studies. Descriptive statistics were used to summarize the data. Out of 112 cases of thyroglossal duct cyst, 11 adult patients had associated carcinoma. Their age ranged from 20 to 68 years with a median age of 32 years. The most common presentation was anterior midline painless neck swelling. The diagnosis was made on final histopathological examination post-operatively. Alignant change is rare complication of the most common congenital thyroid anomaly. This study highlights the occurrence of this disease in adults and provides data on manifestation and management of this rare disease.