Thyroglossal duct carcinoma.
D000293:Adolescent; D000328:Adult; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D013955:Thyroglossal Cyst / Q000175:diagnosis; D013961:Thyroid Gland / Q000196:embryology; D013964:Thyroid Neoplasms / Q000175:diagnosis / Q000196:embryology* / Q000473:pathology