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
The most common malignant neoplasm of infancy is: 
Select and explain. 
A. Malignant teratoma, B. Neuroblastoma, C. Wilms' tumor, D. Hepatoblastoma
B: Neuroblastoma
Answer: B: Neuroblastoma 
Explanation: Neuroblastoma accounts for 7-10% of pediatric malignancies and is the most common solid neoplasm outside the CNS. Fifty percent of neuroblastomas are diagnosed before age 2 years and 90% before age 5 years. Ref: Kligman, Behrman, Jenson, Stanton (2008), Chapter 498, "Neuroblastoma", In the book, "Nelson's Textbook of Pediatrics", Volume 2, 18th Edition, New Delhi, Page 2137