ALK and neuroblastoma: Alterations in copy number; amplification of MYCN or expression of MYC; mutations of ALK, PTPN11, ATRX, LMO1, and RAS-RAF-MAPK pathway genes; genomic alterations and overexpression of LIN28B; and genomic rearrangements and alternative mechanisms of activating TERT are important in the pathogenesis of NB (3–15).