DISORDERS OF THE THYROID GLAND IN INFANCY, …

Loss of thyroid tissue leads to decreased production of TH (low T3 and T4), increased secretion of TSH, and goiter. Etiology – primary hypothyroidism can be due to: Congenital defects. Defective hormone synthesis resulting from autoimmune thyroiditis, endemic iodine deficiency, or antithyroid drugs ................
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