This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pediatrics
All are signs of hydrocephalus in a neonate except- 
Select and explain. 
A. Enlarged head, B. Sunset sign, C. Crack post sign, D. All
C: Crack post sign
Answer: C: Crack post sign 
Explanation: Ans. is 'c' i.e., Crack pot sign "Cracked pot or macewan sign indicates raised intracranial pressure after sutures and fontanels have closed" o Fontanelle is wide and bulging (not depressed) Signs of Increased intracranial tension in infants Separation of cranial sutures --> Earliest sign Wide bulging anterior fontanelle o Increased head circumference o Papilledema does not occur in infants because separation of sutures and open fontanelle compensate for increase in the intracranial pressure. However, if ICT rises very rapidly papilledema may occur. o Macewan or cracked pot sign occurs after sutures and fontanelle have closed (not in neonate) o Projectile vomiting o Headache Paicularly in early morning o Diplopia & sixth nerve palsy o Sun set sign ---> Eyes dete downward because of impingement of the dilated suprapineal recess.