GJB2 and deafness: Cerebellar hypoplasia, reported in other patients with Cx26 mutations, highlights the gene’s potential role in neurodevelopment.[24] Furthermore, diffusion tensor imaging and volumetric MRI in children with GJB2-related deafness have demonstrated altered white matter microstructure and cortical volume changes, suggesting Cx26 disruption may influence neuroanatomical maturation even in the absence of syndromic features.[25] Our patient’s moderate ventriculomegaly may represent an underreported phenotype within this continuum.