Hyperthyroidism

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Describe Hyperthyroidism (Thyrotoxicosis)?

due to increased levels of circulating TH
What is Primary Hyperthyroidism?

Excess TH is made and secreted by the thyroid gland
What causes primary hyperthyroidism?
- 1. Graves disease
- 2. toxic multinodular goiter
- 3. solitary hyperfunctioning noules
- 4. follicular thyroid carcinoma
- 5. ingestion of excess TH medication (thyrotoxicosis factitia)
Secondary Hyperthyroidism?

rare but caused by TSH-secreting pituitary adenomas

Author:	qchamber
ID:	98910
Card Set:	Hyperthyroidism
Updated:	2011-08-29 21:16:33
Tags:	Thyroid
Folders:
Description:	Alterations of the thyroid gland
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