Below is an instruction from Human. Write a response.
    ### Instruction:
    What is (are) osteoglophonic dysplasia ?
    ### Response:
    Osteoglophonic dysplasia is a condition characterized by abnormal bone growth that leads to severe head and face (craniofacial) abnormalities, dwarfism, and other features. The term osteoglophonic refers to the bones (osteo-) having distinctive hollowed out (-glophonic) areas that appear as holes on x-ray images.
    