title: A lump in the neck.
mesh_terms: D000328:Adult; D003560:Cysts / Q000175:diagnosis*; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D013959:Thyroid Diseases / Q000175:diagnosis*; D013960:Thyroid Function Tests; D013964:Thyroid Neoplasms / Q000175:diagnosis; D014463:Ultrasonography