Choose the best answer.
What is the most common cause of congenital hypothyroidism?
A. Grave’s Disease
B. Deficiency of thyroid-stimulating hormone (TSH)
C. Transplacenta auto-antibodies
D. Impaired iodine transport
E. Thyroid dysgenesis
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Written by CH LEE on 5/1/2009
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Answer E.
According to Nelson, 85% of cases of Congenital Hypothyroidism is due to thyroid dysgenesis.
Reference
http://emedicine.medscape.com/article/919758-overview
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