Primary hypothyroidism
Causes: Iodine deficiency (developing countries), autoimmune thyroiditis, previous thyroidectomy, previous radioiodine treatment, previous external beam Medication: lithium-based mood stabilizers, amiodarone, interferon radiotherapy to the neck alpha, tyrosine kinase inhibitors such as sunitinib.
Central hypothyroidism
Lesions compressing the pituitary (pituitary adenoma, craniopharyngioma, meningioma, glioma, Rathke's cleft cyst, metastasis, empty sella, aneurysm of the internal carotid artery), surgery or radiation to the pituitary, drugs, injury, vascular disorders (pituitary apoplexy, Sheehan syndrome, subarachnoid hemorrhage), autoimmune diseases (lymphocytic hypophysitis, polyglandular disorders), infiltrative to hemochromatosis or thalassemia, sarcoidosis, Langerhans cell histiocytosis), diseases (iron overload due to hemochromatosis or thalassemia, sarcoidosis, Langerhans cell histiocytosis), particular inherited congenital disorders, and infections (tuberculosis, mycoses, syphilis)
Congenital hypothyroidism
Thyroid dysgenesis (75%), thyroid dyshormonogenesis (20%), maternal Transiently: due to maternal iodine deficiency or excess, anti-TSH receptor antibodies, certain congenital disorders, neonatal illness Central: pituitary dysfunction (idiopathic, septo-optic dysplasia, deficiency antibody or radioiodine transfer of PIT1, isolated TSH deficiency)
For more information‬ visit: Hypothyroidism Treatment Clinic Or call +91-961-638-5385 / +91-941-500-7203.