Below is an instruction from Human. Write a response.
    ### Instruction:
    What is (are) Langer mesomelic dysplasia ?
    ### Response:
    Langer mesomelic dysplasia is a disorder of bone growth. Affected individuals typically have extreme shortening of the long bones in the arms and legs (mesomelia). As a result of the shortened leg bones, people with Langer mesomelic dysplasia have very short stature.
    