<prompt> Most common cancer in children isAMLALLCMLCLL  <response>: Acute lymphoblastic leukemialymphomas ALLs are neoplasms composed of immature B pre-B or T pre-T cells, which are referred to as lymphoblasts. About 85 are B-ALLs, which typically manifest as childhood acute leukemias.ALL is the most common cancer in children.Ref: Robbins and Cotran Pathologic Basis of Disease; 9th edition; Chapter 11; Diseases of White Blood Cells, Lymph Nodes, Spleen, and Thymus; Page no: 590 