<prompt> Most common intra-abdominal solid tumor in children:Wilms tumorNephroblastomaNeuroblastomaRhabdomyosarcomaHodgkin lymphoma  <response>: b. NeuroblastomaRef: Nelsons 20e p 2461-2466, Ghai 8e 617-618Most common intra-abdominal solid tumor in children is Neuroblastoma, followed by Wilms tumor. 