| Phenotype details |
height SD -2.07, weight SD -0.82, OFC SD -3.27; motor delay; speech delay; moderate intellectual disability; facial dysmorphism; sensorineural hearing loss, progressive, bilateral, has cochlear implants; precocious puberty; hypotonia, difficulty with tandem gait, trips when running, mild intention tremor; normal at age 9 years; MRI brain delayed myelination, mild cerebellar volume loss; linear hypopigmentation in extremities, progressive hyperopia, mild retinal changes with normal ERG |