Below is an instruction from Human. Write a response.
    ### Instruction:
    What is (are) Madelung disease ?
    ### Response:
    Madelung disease is a rare condition characterized by the symmetric growth of fatty tumors (lipomas) around the neck, shoulders, upper arms and/or upper trunk. It most often affects men of Mediterranean ancestry between the ages of 30 and 70 who have a history of alcohol abuse.
    