| Definition Thyroiditis: Varied group of disorder all characterized by some form of thyroid inflammation Hyperthyroidism: denote conditions in which hyperfunction of the thyroid leads to thyrotoxicosis. Hypothyroidism: Variety of abnormalities that cause insufficient secretion of thyroid hormones. The most common cause is autoimmune thyroid disease Thyrotoxicosis: denotes the clinical, physiological, and biochemical findings that result when the tissues are exposed to excess thyroid hormone. It can arise in a variety of ways |
Acute thyroiditis
De Quervain
Hashimoto's (hypothryoidism)
Riedel thyroiditis (chronic fibrosing thyroiditis)
| Causes and characteristics of thyroiditis | |
| Cause | Characteristic features |
| Chronic lymphocytic thyroiditis | Grossly lymphocytic and fibrotic thyrotoxicosis or hypothyroidism |
| Postpartum thyoiditis | Lymphocytic thyroditis, transient thyrotoxicosis or hypothyroidism |
| Drug induced | Particularly with amiodarone |
| De Quevain | Thought to be viral in origin, multinuclear giant cells |
| Riedel thyroiditis | Extensive fibrosis of the thyroid |
| Radiation thyroiditis | Radiation injury, transient thyrotoxicosis |
Painful Thyroiditis
