GRAVE HIM Graves’ disease Radiation (iodine-induced) Adenoma (toxic adenoma) Viral thyroiditis (subacute thyroiditis) Excess iodine (Jod-Basedow phenomenon) HCG (trophoblastic disease) Iodine-containing medications (amiodarone) Multinodular goiter (toxic multinodular goiter)

THYROID’S Thyroiditis (Hashimoto’s, subacute) Hypothalamic or pituitary dysfunction Young (congenital hypothyroidism) Radiation (radiation therapy or radioactive iodine) Overdose of anti-thyroid medications Iodine deficiency/excess Drugs (lithium, amiodarone) Subacute thyroiditis