title: Thyroglossal duct carcinomas: light and electron microscopic studies.
abstract: Two cases of papillary carcinoma arising in thyroglossal duct cysts are reported. Electron microscopic studies were done on both cases and similar ultrastructural features were noted. When compared with a case of papillary adenocarcinoma arising in the thyroid gland proper, no difference was seen both at the light microscopic and ultrastructural levels.
mesh_terms: D000231:Adenocarcinoma, Papillary / Q000473:pathology; D000328:Adult; D002291:Carcinoma, Papillary / Q000473:pathology*; D002294:Carcinoma, Squamous Cell / Q000473:pathology; D005260:Female; D006801:Humans; D008854:Microscopy, Electron; D013955:Thyroglossal Cyst / Q000473:pathology*; D013961:Thyroid Gland / Q000473:pathology