| Phenotype details |
severe developmental delay; developmental regression; dysostosis multiplex; short stature; coarse facial features; macrocephaly; macroglossia; joint contractures; no carpal tunnel syndrome; no inguinal hernia, umbilical hernia; obesity; no heart valve involvement; no cardiomyopathy; no adenotomy, tonsillectomy; no acute otitis media; hearing impairment; no seizures; no hydrocephalus |