Below is an instruction from Human. Write a response.
    ### Instruction:
    What is (are) multiple epiphyseal dysplasia ?
    ### Response:
    Multiple epiphyseal dysplasia is a disorder of cartilage and bone development primarily affecting the ends of the long bones in the arms and legs (epiphyses). There are two types of multiple epiphyseal dysplasia, which can be distinguished by their pattern of inheritance.
    