title: The limitations of ultrasound in thyroid swellings.
mesh_terms: D001707:Biopsy, Needle; D003937:Diagnosis, Differential; D006801:Humans; D013961:Thyroid Gland / Q000473:pathology*; D013964:Thyroid Neoplasms / Q000473:pathology*; D014463:Ultrasonography / Q000379:methods*