| Phenotype details |
birth-39w; delayed motor development; head control-2.5m;; sit-7m; never crawled; never walked; severe intellectual disability; no autistic behavior; language comprehension; speech simple two-word sentences; spastic diplegia; wheelchair bound; no infantile hypotonia; no history of regression; no epilepsy; EEG high-voltage slow waves with spikes; MRI brain cerebral atrophy; delayed myelination; corpus callosum hypoplasia; round face; no prominent nasal bridge; thin upper lip; short stature; obesity; precocious puberty |