This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: New born infants, Subject name: Pediatrics
In asymmetrical IUGR which organ is not affected 
Select and explain. 
A. Subcutaneous fat, B. Muscle, C. Liver, D. Brain
D: Brain
Answer: D: Brain 
Explanation: In asymmetrical IUGR, the insult on the fetal growth occurs during late gestation producing a brain sparing effect. Head circumference is relatively preserved compared to length and weight. This occurs d/t preferential redistribution of blood flow to brain, hea and adrenals. Causes include : placental insufficiency, pregnancy indyced hypeension or maternal medical diseases. Reference : page 156 Ghai Essential Pediatrics 8th edition