Partial Target Organ Resistance to Thyroid Hormone

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Abstract

An 8-year old boy with a small goiter, normal basal metabolic rate (BMR), and elevated serum thyroid hormone levels (thyroxine [T4] 19.5 μg per 100 ml, free T4 4 ng per 100 ml, triiodothyronine [T3] 505 ng per 100 ml) was studied. He had measurable serum thyroid-stimulating hormone (TSH) levels (average 5.5 μU per ml), and the thyroxine-binding proteins, hearing, and epiphyseal structures were normal. There was no parental consanguinity nor were there thyroid abnormalities either in the parents or six siblings.

Authors

Hans Henning Bode, Marco Danon, Bruce D. Weintraub, Farahe Maloof, John D. Crawford