Pediatrics General 9c0ea196 Tumor associated with best prognosis in children is- A Medulloblastoma B Ependymoma C Cerebellar astrocytoma D Glioblastoma-multiformis High-Yield Explanation Cerebellar astrocytoma is the most common posterior fossa tumor and has the best prognosis Worst prognosis is seen with --> Brain-stem glioma.