A de novo mutation in ZMYND11, a candidate gene for 10p15.3 deletion syndrome, is associated with syndromic intellectual disability.

We report a boy with severe syndromic intellectual disability who has a de novo mutation in the ZMYND11 gene. Arguments for pathogenicity of this mutation are found in cases from the literature, especially several with 10p15.3 deletions, harbouring ZMYND11. Additional reports of ZMYND11 mutations in cases with syndromic intellectual disability are needed before the ZMYND11 mutation identified in our case can be considered as definitely pathogenic.