|
HYPOTHYROIDISM |
|
autoimmune thyroiditis: |
Hashimoto's thyroiditis [commonest cause; goitre present]spontaneous atrophy of gland [non-goitrous] |
|
treated hyperthyroidism: |
carbimazole thyroidectomy radio-iodine radiation |
|
goitrogens: |
iodine amiodarone PAS lithium |
|
other causes: |
hypopituitarism [low TSH, high TRH]hypothalamic disease [low TRH and TSH]endemic iodine deficiency (dietary lack)1° agenesis of gland / congenital hypothyroidism [causes cretinism]peripheral resistance to thyroid hormone |
|
inborn errors of thyroid hormone synthesis :dyshormonogenesis (various), eg. Pendred syndrome (+ deafness) |
click here to return to the main contents page of Differential Diagnoses in General Medicine