갑상설관 낭종에서 발생한 유두상 선암 1례

Thyroglossal duct cyst is the most common congenital neck cyst, which originating from the remnant of the thyroglossal duct. Carcinoma arising in the thyroglossal duct cyst is rare, occurring in less than 1% of thyroglossal duct cyst.

Among various types of carcinoma being found from thyroglossal duct cyst, papillary adenocarcinoma is the vast majority. Other histologic types have included squamous cell, follicular, mixed papillary and follicular carcinoma, malignant struma, epidermoid carcinoma and anaplastic carcinoma.

Like papillary adenocarcinoma in thyroid gland, papillary adenocarcinoma from throglossal duct cyst is slow growing tumor. Regional and distant metastasis is less frequent. Male to female ratio is 1 : 1.5. Surgery by the Sistrunk procedure is choice for non-metaststic disease. Prognosis is very excellent if tumor could be removed completely.

Authors have experienced a case of papillary adenocarcinoma from thyroglosal duct cyst and reported with literatures review.