Hyperthyroidism is a set of disorders that involve excess synthesis and secretion of thyroid hormones by the thyroid gland, which leads to the hypermetabolic condition of thyrotoxicosis. Although many clinicians (endocrinologists excluded) use the terms hyperthyroidism and thyrotoxicosis interchangeably, the two words have distinct meanings. For example, both exogenous thyroid hormone intake and subacute thyroiditis can cause thyrotoxicosis, but neither constitutes hyperthyroidism because the conditions are not associated with new hormone production. The most common forms of hyperthyroidism include diffuse toxic goiter (Graves disease), toxic adenoma, and toxic multinodular goiter (Plummer disease).
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Cite this: Romesh Khardori. Fast Five Quiz: How Much Do You Know About Hyperthyroidism? - Medscape - May 08, 2017.
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