Below is an instruction from Human. Write a response.
    ### Instruction:
    What is (are) Saethre-Chotzen syndrome ?
    ### Response:
    Saethre-Chotzen syndrome is a genetic condition characterized by the premature fusion of certain skull bones (craniosynostosis). This early fusion prevents the skull from growing normally and affects the shape of the head and face.  Most people with Saethre-Chotzen syndrome have prematurely fused skull bones along the coronal suture, the growth line that goes over the head from ear to ear.
    