Papillary carcinoma originating from a thyroglossal duct cyst : A case report

Abstract

Thyroglossal duct cyst is a benign cystic lesion in the anterior neck but rarely presents an internal malignant tumor. The ectopic thyroid tissue in the cyst is considered to be the origin of the disease, and histopathologi-cally, papillary thyroid cancer is the most common manifestation. It may be overlooked by fine needle aspiration cytology, and histopathological examination often reveals a malignant tumor after surgery. Herein, we report a case of papillary carcinoma occurring in the thyroglossal duct cyst of a young woman, along with a brief review of the literature. [Skin Cancer (Japan) 2021 ; 36 : 254－258]