Does Papillary Carcinoma of Thyroglossal Duct Cyst Develop De Novo?

Figure 3

(a) The tumor is within a cystic structure which is lined by stratified squamous epithelium (×200, H&E). (b) Papillary structures which are typically complex branching, covered by epithelium with disturbed polarity and eosinophilic cytoplasm (×200, H&E). (c) Nuclei are large, oval shaped and show clearing and some have grooves (×400, H&E).

(a)

(b)

(c)