<unk>  is transmitted by genetics. Like when the CKAP2L gene is not working properly it can cause the disorder. The disorder might also be due to HOXD insufficiency. Mutations in genes for brain development and limb development might also be a cause. Parents who are carriers of defective genes for the disease are clinically normal.However, the offspring of two carrier parents have a 25% of getting the disorder. Parents who are close relatives have a higher chance of having children with this disorder than unrelated parents who are carriers.
Filippi Syndrome
Sanfilippo syndrome
Alder–Reilly anomaly
Pelger–Huët anomaly
Tietz syndrome
Treacher Collins syndrome
DeSanto-Shinawi syndrome
Klippel–Feil syndrome