Causes of Hyperthyroidism

• Graves' disease (thyroid-stimulating autoantibodies)
• Toxic adenoma
• Toxic multinodular goitre
• Amiodarone
• Viral (de Quervain's) thyroiditis
• Postpartum thyroiditis
• T4 overdose
• Pituitary TSH-secreting adenoma (rare)

Let us bid adieu to de Quervain,

As he is lowered into the pit of his grave.
Post the tears, we'll nod amid beers,
Over pity he couldn't be saved.

Let us bid adieu (toxic adenoma) to de Quervain (viral de Quervain's thyroiditis), 

As he is lowered into the pit (pituitary TSH-secreting adenoma) of his grave (Graves' disease).
Post  (postpartum thyroiditis) the tears, we'll nod (toxic multinodular goitre) amid (amiodarone) beers,
Over (T4 overdose) pity he couldn't be saved.