title: Circulating autoantibodies to thyroid hormones: a diagnostic pitfall.
abstract: Circulating autoantibodies to thyroid hormones are occasionally detected and may cause confusion, because symptoms and signs are inconsistent with the measured thyroid hormone values. We present a 5 1/2 year old girl with Hashimoto's thyroiditis and false high concentrations of free thyroxine and total triiodothyronine.
mesh_terms: D001323:Autoantibodies / Q000032:analysis*; D002675:Child, Preschool; D005260:Female; D006801:Humans; D007037:Hypothyroidism / Q000175:diagnosis / Q000276:immunology; D013967:Thyroiditis, Autoimmune / Q000175:diagnosis / Q000276:immunology*; D013974:Thyroxine / Q000276:immunology*; D014284:Triiodothyronine / Q000276:immunology*
chemical_list: D001323:Autoantibodies; D014284:Triiodothyronine; D013974:Thyroxine