Master the board step 3

Endocrinology
Treatment
Aspirin to relieve pain.
Pituitary Adenoma
This condition is rare. It is the only cause of hyperthyroidism with an elevated
TSH.
Treatment
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MRI of the brain.
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Remove adenoma.
Exogenous Thyroid Hormone Abuse
The T4 is up and the TSH suppressed. However, the thyroid gland will atrophy
to the point of nonpalpability on examination.
Thyroid “Storm”
Acute severe, life-threatening hyperthyroidism is also known as “thyroid
storm.”
Treatment
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Iodine: Blocks uptake of iodine into the thyroid gland and blocks the release
of hormone.
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Propylthiouracil or methimazole: Blocks production of thyroxine.
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Dexamethasone: Blocks peripheral conversion of T4 to T3.
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Propranolol: Blocks target organ effect.
PTU blocks conversion of
T4 to T3.
Goiter
99