New phenotype caused by POMGNT2 mutations

We present a case report about a Moroccan 3-year-old girl, with an intermediate phenotype of muscular dystrophy-dystroglycanopathy (congenital with brain and eye anomalies), type A, 8 form. We performed clinical and instrumental evaluation, muscle biopsy, genetic screening of 59 genes for different cerebral malformations, follow-up and review of literature. After investigations, we identified an intermediate new phenotype between the severe and mild form, characterised by significant malformations of the cortex with myopatic symptoms, this increases the genotype–phenotype correlation knowledge about POMGNT2 gene mutations. New homozygous missense mutation on POMGNT2 (c.511 G>A, p.Asp171Asn, rs768063378) was detected.