| Phenotype details |
walks short distances; no speech; comprehension severely limited; 4m-possible regression; severe DD or ID; 4m-onset seizures; no MRI anomalies; hypotonia; no hypertonia; dystonic movement disorder; stereotypic repetitive behaviors; noise sensitivity, self-harm (exacerbated by anxiety); deep-set eyes, epicanthal folds, low anterior hairline, thick arched eyebrows, broad nasal tip |