Thyrotoxicosis
endogenous or exogenous source of TSH.
Endogenous:
- Grave's disease
- Toxic multinodular goiter
- Toxic adenoma
- TSH-producing adenoma or pituitary adenoma
- HCG-mediated (gestational) hyperthyroidism
- Thyroiditis
- Drug-induced eg. Amiodarone, iodine contrast
Exogenous:
- Factitious hyperthyroidism
- Excessive replacement therapy with levothyroxine
https://www.ncbi.nlm.nih.gov/books/NBK482216/Thyrotoxicosis review 2022