| A rare genetic primary bone dysplasia with increased bone density disorder with characteristics of bone abnormalities, including metaphyseal plaques, osteopathia striata, marked cranial sclerosis, and sclerosis of the ribs and long bones, as well as macrocephaly, cleft palate, hearing loss, developmental delay, and facial dysmorphism (hypertelorism, prominent forehead, wide nasal bridge). Hypotonia, tracheo/laryngomalacia, and astigmatic myopia are also associated. |