<prompt> Most common malignancy in children isALLAMLNeuroblastomaWilms tumor  <response>: Leukemia is most common malignancy in the pediatric age groupLeukemialymphoma 40 ALL is more common than AMLCNS Tumor30Embryonal Sarcoma102nd most common is CNS Tumor 30Refer: Nelsons Textbook of Pediatrics, SAE, 1st edition, pg no. 2437-2445 