Pryds O, Hadberg A, Kastrup K W
Acta Paediatr Scand. 1987 Jul;76(4):685-7. doi: 10.1111/j.1651-2227.1987.tb10548.x.
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.