Below is an instruction from Human. Write a response.
    ### Instruction:
    What is (are) Spondylocostal dysostosis 2 ?
    ### Response:
    Spondylocostal dysostosis is a group of conditions characterized by abnormal development of the bones in the spine and ribs. In the spine, the vertebrae are misshapen and fused. Many people with this condition have an abnormal side-to-side curvature of the spine (scoliosis).
    