NF1 and malignant peripheral nerve sheath tumor: A previously compiled list of genes located within regions encompassed by copy number alterations (CNAs) identified in the NF1-MPNSTs which were also used in the current study [25] was then cross-compared with a list of genes differentially expressed in the same NF1-MPNST samples, which were analysed for this study through Affymetrix exon array analysis.