Editing Hyperthyroidism (section)

== '''Aetiology''' (most commonly those in bold) ==

* '''Associated     with normal or high RAI uptake''' (indicates de novo synthesis of hormone, so can be     treated with a thionamide (i.e. carbimazole))
** '''Graves      disease'''
** '''TMNG'''
** '''Toxic      adenoma'''
** Trophoblastic disease
** TSH-producing pituitary      adenoma
** Thyroid hormone resistance
* '''Associated     with no or minimal RAI uptake''' (indicates either inflammation and destruction of     thyroid tissue with release of pre-formed hormone into the circulation, or     an extra-thyroidal source of thyroid hormone; so thionamides won't help in     these disorders)
** Thyroiditis
*** Painless thyroiditis       (silent or lymphocytic)
*** Amiodarone-induced       thyroiditis
*** Subacute granulomatous       thyroiditis
*** Acute thyroiditis
*** Palpation thyroiditis
** Iatrogenic thyrotoxicosis -      excessive, intentional replacement, or factitious
** Struma ovarii
** Follicular thyroid cancer      metastases (ectopic)