Thyroglossal duct carcinoma.
D002277:Carcinoma / Q000473:pathology*; D002828:Choristoma / Q000473:pathology*; D004848:Epithelium / Q000473:pathology; D005753:Gastric Mucosa / Q000473:pathology; D006801:Humans; D013955:Thyroglossal Cyst / Q000473:pathology*; D013964:Thyroid Neoplasms / Q000473:pathology*