To understand the role of genomic variation in Autism Spectrum Disorder (ASD) specific to the Lebanese population, Soueid et al. 2016 carried out microarray analysis in 41 children with autism. 80 copy number variations (CNVs) were identified, of which 71% (57 CNVs) were inherited and 20% (16 CNVs) were de novo. Two CNVs – a duplication located on 16p11.2 (de novo CNV) and a deletion located on 2p16.3 (inherited CNV) – were classified as pathogenic. Another inherited CNV located on 1q43 (encompassing RYR2 gene) was classified as likely pathogenic. 15 CNVs of uncertain significance were also observed in the study group. The results were compared with controls and non-autistic developmentally delayed/intellectually disabled (DD/ID) patients. A CNV located at 10q11.22 was found to be common to all three groups. Additionally, Soueid et al. 2016 proposed PTDSS1 and AREG as potential ASD susceptibility genes.