Thyrotoxicosis

Question 1

what is it?

Answer 1

not associated with hyperthyroidism

Question 2

what causes it?

Answer 2

thyroid inflammation (thyroiditis)

• subacute de Quervain’s thyroiditis
• post-partum thyroiditis
• drug-induced thyroiditis (e.g. amiodarone)

exogenous thyroid hormones

• over-treatment with levothyroxine
• thyrotoxicosis factitia

ectopic thyroid tissue

• metastatic thyroid carcinoma
• struma ovarii (teratoma containing thyroid tissue)