To complement cytogenetic studies and to identify genes altered in AML genomes, Walter and co-workers performed a genome-wide copy number analysis with paired normal and tumor DNA obtained from 86 adult subjects with de novo AML using 1.85 million feature SNP arrays. A total of 201 somatic CNAs were found in the 86 AML genomes (mean, 2.34 CNAs per genome), with FAB-System M6 and M7 genomes containing the most changes (10-29 CNAs per genome). According to the authors' conclusions, the use of an unbiased high-resolution genomic screen identified many genes not previously implicated in AML that may be relevant for pathogenesis, along with many known oncogenes and tumor suppressor genes. Despite the ability of next-generation sequencing platforms to accurately identify amplifications, deletions, and translocations, a multiplatform approach (traditional cytogenetics, FISH, SNP array, array CGH, and targeted gene resequencing) will continue to be the most practical approach to studying AML genomes at most institut more