1126 Incidental Finding of Thyroid Papillary Carcinoma in a Thyroglossal Duct Cyst
A Dhannoon, M Aziz, V Uzomefuna, M Wickham- Surgery
Abstract
Introduction
Thyroglossal cyst is one of the most common benign congenital neck lumps, however, incidental malignancy in these cysts is a rare entity with incidence rate of <1%.
Method
We present a case of a 35-year-old female, who presented with an asymptomatic midline neck mass. ultrasound neck confirmed 3.5 cm thyroglossal duct cyst (TDC). She underwent a Sistrunk procedure to excise the cyst. On histological examination, there was an incidental finding of a papillary cell carcinoma. After multidisciplinary discussion, the patient opted for a total thyroidectomy. On histology the left lobe of thyroid had a 2.2 mm microcarcinoma.
Discussion
Dilemma arises during managing incidental papillary cell carcinoma. Various management options have been described in the literature. This includes total thyroidectomy with or without regional lymph node dissection, radioactive iodine, suppressive thyroxine or wait and watch.
Conclusions
This case highlights the importance of sending excised TDC for histology as it can lead to an early diagnosis of thyroid malignancy and allows adequate management.