Abstract
Medulloblastoma is the most common malignant central nervous system tumor in children, with an estimated 30,000 children affected worldwide each year. According to the World Health Organization (WHO), this tumor is molecularly subdivided into four subgroups: WNT, SHH (wild-type TP53 or mutated TP53), and Non-WNT/SHH (Group 3 and 4). These subgroups have distinct molecular and clinical cha…