Thyroglossal duct cysts are most commonly occurring congentinal midline swellling of the neck. Usually carcinomas in thyroglossal duct cysts is extremely rare, commonly known as papillary carcinomas. However, the diagnosis is only made postoperatively after excision of the cyst. Although the Sistrunk procedure is often regarded as adequate but controversies exist, the need for thyroidectomy is based on histopathological findings. This is a case report of 43-year-old male presenting with swelling in the midline of the neck for one year. On examination, a cystic swelling was present in the midline of the anterior aspect of the neck. Ultrasonography (USG) neck revealed heteroechoic cystic lesion with solid component and microcalcifications present within the cyst suggestive of thyroglossal duct cyst probably neoplastic. The mass was surgically excised and sent for histopathological examination and reported as thyroglossal duct cyst with papillary carcinoma of thyroid. Appropriate history, clinical examination and investigation leads to the correct diagnosis and treatment. Incomplete removal of the mass leads to recurrence. Histopathological examination is a must postoperatively. The patient is still on follow-up and no recurrence have been noted.
Invasive primary papillary carcinoma in a thyroglossal duct cyst: A case report and review of the literature
