<prompt> Commonest childhood tumor is:Acute lymphoblastic leukemiaChronic lymphoblastic leukemiaChronic myeloid leukemiaBrain tumor  <response>: Common Childhood Tumors are: Leukemia ALL Brain tumors Lymphoma Neuroblastoma Wilms tumor. High yield points about childhood tumors: Most common childhood leukemia is ALL Most common tumor in infancy is Neuroblastoma Most common solid tumor of childhood is Brain tumor Most common intra-abdominal extra-cranial solid tumor in childhood is Neuroblastoma MC primary intra ocular tumor in children is RETINOBLASTOMA MC primary renal tumor of childhood - WILMS TUMOR 