Below is an instruction from Human. Write a response.
    ### Instruction:
    What is (are) Naegeli-Franceschetti-Jadassohn syndrome/dermatopathia pigmentosa reticularis ?
    ### Response:
    Naegeli-Franceschetti-Jadassohn syndrome/dermatopathia pigmentosa reticularis (NFJS/DPR) represents a rare type of ectodermal dysplasia, a group of about 150 conditions characterized by abnormal development of ectodermal tissues including the skin, hair, nails, teeth, and sweat glands.
    