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  • A 9.8 Mb deletion at 7q31.2...
    Iwata‐Otsubo, Aiko; Klee, Victoria H.; Ahmad, Aaliya A.; Walsh, Laurence E.; Breman, Amy M.

    Clinical case reports, November 2022, Volume: 10, Issue: 11
    Journal Article

    Haploinsufficiency of FOXP2 causes FOXP2‐related speech and language disorder. We report a 9.8 Mb deletion downstream of FOXP2 in a girl with speech and language impairment, developmental delay, and other features. We propose involvement of FOXP2 in pathogenesis of these phenotypes, likely due to positional effects on the gene. Chromosomal deletions nearby but not involving FOXP2 may be a cause of FOXP2‐related speech and language disorder due to a positional effect on the gene.