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: Medicine
Most common extra-cutaneous manifestation of chicken pox is - 
Select and explain. 
A. CNS involvement, B. Varicella pneumonia, C. Congenital varicella, D. Reye syndrome
A: CNS involvement
Answer: A: CNS involvement 
Explanation: Answer- A. CNS involvementThe most common extracutaneous site of involvement in chicken pox in children is the CNSThe cerebrospinal fluid (CSF) contains lymphoctyes and elevated levels of protein.