Fig. 1
Clinical course of the patient. The reference ranges for body weight, serum levels of free triiodothyronine, free thyroxine, and thyroid-stimulating hormone; and titers from the first-generation, second-generation, and third-generation thyroid-stimulating hormone-binding inhibitory immunoglobulin, thyroid-stimulating antibody, thyroid peroxidase antibody-radioimmunoassay, thyroglobulin antibody-radioimmunoassay, thyroid peroxidase antibody-electrochemiluminescence immunoassay, and thyroglobulin antibody-electrochemiluminescence immunoassay tests are shown in square brackets. The reference range for body weight (kg) was calculated as follows: (body height in m2 × 18.5) to (body height in m2 × 25). ECLIA electrochemiluminescence immunoassay, FT 3 free triiodothyronine, FT 4 free thyroxine, RIA radioimmunoassay, TBII thyroid-stimulating hormone-binding inhibitory immunoglobulin, TgAb thyroglobulin antibody, TPOAb thyroid peroxidase antibody, TSAb thyroid-stimulating antibody, TSH thyroid-stimulating hormone