Papillary carcinoma on thyroglossal tract cyst: our attitude toward a rare pathology whose management is often controversial.

Malignant degeneration on remnants of the thyroglossal tract is a very rare phenomenon. In our practice setting, we report the management of papillary carcinoma on a thyroglossal tract cyst. This was a 44-year-old female patient with a postoperative diagnosis of papillary carcinoma of the thyroglossal tract with an atypical clinical and ultrasound presentation. She subsequently underwent total thyroidectomy and bilateral recurrent lymph node dissection, with resection of fibrous scar tissue in the previously operated hyoid region. We have discussed our therapeutic attitude to this rare pathology, the management of which is the subject of controversy.