This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Thyroid disorders, Subject name: Pediatrics
Common features of acquired Hypothyroidism include all EXCEPT: 
Select and explain. 
A. Growth retardation, B. Mental retardation, C. Delayed pubey, D. Pseudohyperophy of muscles
B: Mental retardation
Answer: B: Mental retardation 
Explanation: - Mental retardation is not a feature of Acquired hypothyroidism - It is seen in child with untreated congenital hypothyroidism Clinical features of acquired hypothyroidism: Firm & nodular goiter Deceleration of growth is usually the first clinical manifestation Cold intolerance Lethargy Constipation Delayed dentition Delayed pubey (some may have pseudo precocious pubey) Bradycardia Myopathy/ pseudohyperophy of muscles Hea failure (in severe cases) Weight gain - mostly due to fluid retention Associated with Down's syndrome ; Turner's syndrome ; Celiac disease