A 53 year old woman was referred to us because of large goiter, enlarged pituitary and grossly elevated TSH and free T4. The differential diagnosis included a TSH producing adenoma vs. artifactual laboratory tests. A careful step-by step analysis of different possibilities allowed correct diagnosis and treatment.
CITATION STYLE
Barkan, A., & Koenig, R. J. (2015). Clinical case seminar: unraveling the mystery of abnormal thyroid function tests. Clinical Diabetes and Endocrinology, 1(1). https://doi.org/10.1186/s40842-015-0010-8
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