ATRX and neuroblastoma: Genomic amplification and focal alterations affecting cell cycle genes (CDKN2A/B, CCND1, CDK4/6, and MDM2) [8,14,15,16,17,18], or genes implicated in chromatin remodeling and telomere maintenance (ATRX, ARID1A/B, and TERT) [8,11,13] have been described as contributing to the development and progression of NB.