<prompt> The most common malignant neoplasm of infancy is:Malignant teratomaNeuroblastomaWilms tumorHepatoblastoma  <response>: 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, Nelsons Textbook of Pediatrics, Volume 2, 18th Edition, New Delhi, Page 2137 