Resistance to Thyroid Hormone Beta or Thyroid-Stimulating Hormone (TSH)-Secreting Pituitary Adenoma: A Diagnostic Dilemma With a THRB Variant of Uncertain Significance
Elevated thyroid hormone concentrations with nonsuppressed thyroid-stimulating hormone (TSH) present a challenging diagnostic problem. Resistance to thyroid hormone beta (RTHβ), analytical interference, and a TSH-secreting pituitary adenoma (TSHoma) are important considerations. We describe a woman with persistent elev...