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What is The commonest cause of congenital hypothyroidism: September 2012 and explain in detail?
Ans. A i.e. Thyroid dysgenesis Congenital hypothyroidism Large & open posterior fontanelle, Absent social smile & eyebrows, Growth retardation, Delayed pubey, Cold extremities, Large tongue, Prolongation of physiological jaundice & Epiphyseal dysgenesis