Hypo, Hyperthyroidism and Thyroiditis. Thyroid Gland. Objectives: The student should: Know the ways in which thyroid disorders present. Know the major causes and manifestations of hypo, hyperthyroidism and thyroiditis . Know the causes of a solitary nodule in the thyroid.
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Hypo, Hyperthyroidism and Thyroiditis
ASSOCIATED WITH HYPERTHYROIDISM:
1- Diffuse hyperplasia of the thyroid associated with Graves disease (accounts for 85% of cases)
2- Hyperfunctionalmultinodular goiter
3- Hyperfunctional adenoma of the thyroid
TSH-secreting pituitary adenoma (rare)
May not be associated with hyperthyroidisim:
- Most common cause of painful thyroid gland
- Often preceded by an upper respiratory infection
- Cervical adenopathyis not prominent.
- Initial thyrotoxicosis from gland destruction:
Increased serum T4, decreased serum TSH