volume 49, issue 2, P308-313 2005
DOI: 10.1590/s0004-27302005000200020
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Abstract: A 49-year-old woman who had been treated with sodium levothyroxine because of hypothyroidism after diagnosis of Hashimoto thyroiditis and total thyroidectomy for multinodular atoxic goiter was evaluated for persistent hypothyroidism despite the use of large doses of levothyroxine (600 microg/day). The patient showed signs and symptoms of hypothyroidism and her laboratory tests were: TSH of 351 microUI/mL, free thyroxine of 0.20 ng/dL, and total triiodothyronine of 27 ng/dL. She was submitted, under medical sup…

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