Papillary Carcinoma Developing from a Thyroglossal Duct Cyst: A Case Report

Abstract

Background: Thyroglossal duct cyst is the most common midline congenital anomaly of the neck. Papillary carcinoma in the thyroglossal duct cyst and papillary carcinoma in the thyroid tissue can be seen together. In this article, we present a case of papillary carcinoma of the thyroglossal ductus cyst in a 43-year-old male patient. In the postoperative second year ultrasonography, our patient had multiple reactive lymph nodes in the submandibular region due to tooth infection and about 4x3 mm cystic nodule was detected in the thyroid left lobe. Total thyroidectomy was recommended to the patient when our patient wanted to exit long -term follow -up. In our case, although the focus of papillary carcinoma is less than 1 cm and the capsule is intact in the thyroglossal cyst material, the focus of 4 mm papillary carcinoma was found in the total thyroidectomy material. Even if the focus of papillary carcinoma in the thyroglossal cyst is smaller than 1 cm and the capsule is intact, it should be kept in mind that there may be a focus of papillary ca in the thyroid tissue and patients should not be excluded from follow-up.