Abstract
Hyperthyroidism is common in clinical practice. In this condition, there is excessive synthesis and/or secretion of thyroid hormones into the circulation. This excess in thyroid hormone levels is often accompanied by suppressed serum TSH concentrations and a wide variety of clinical manifestations that often involve many organ systems. Graves’ disease, an autoimmune condition, is the most common cause of hyperthyroidism in the United States (80 % of cases), but various other conditions can result in a similar clinical picture, including toxic nodular thyroid disease, the very rare TSH-producing pituitary adenoma, thyroiditis, medication side effects, or exogenous thyrotoxicosis due to excessive ingestion of thyroid hormone (iatrogenic or factitious). This chapter focuses on the clinical, laboratory, and radiological evaluation of the patient presenting with hyperthyroidism, in order to determine its etiology and define an appropriate treatment plan.
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Castro, M.R. (2015). Laboratory and Clinical Assessment of Hyperthyroidism. In: Bahn, R. (eds) Graves' Disease. Springer, New York, NY. https://doi.org/10.1007/978-1-4939-2534-6_4
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DOI: https://doi.org/10.1007/978-1-4939-2534-6_4
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