- X-linked spinocerebellar ataxia 3 [DOID:0111831]
An X-linked cerebellar ataxia characterized by onset in infancy of hypotonia, ataxia, sensorineural deafness, developmental delay, esotropia, and optic atrophy with X-linked inheritance.
- Bryant-Li-Bhoj neurodevelopmental syndrome 1 [DOID:0051011]
A Bryant-Li-Bhoj neurodevelopmental syndrome that is characterized predominantly by moderate to severe global developmental delay with impaired intellectual development, poor or absent speech, and delayed motor milestones and that has_material_basis_in heterozygous mutation in the H3F3A gene on chromosome 1q42.