Other typical molecular alterations found in this family of tumours are mutations in TP53 (88%), ATRX (95%) [2,3], the amplification of PDGFRA (27%), 3q loss (67%), 4q loss (70%), and Alternative Lengthening of Telomeres (in line with the presence of ATRX mutations) [64,73]. This evidence concerns the gene TP53 and neoplasm.