Below is an instruction from Human. Write a response.
    ### Instruction:
    What is (are) Acute febrile neutrophilic dermatosis ?
    ### Response:
    Acute febrile neutrophilic dermatosis - also known as Sweet syndrome - is a skin condition marked by fever, inflammation of the joints (arthritis), and painful skin lesions that appear mainly on the face, neck, back and arms. Although middle-aged women are most likely to develop this condition, it may also affect men, older adults and even infants.
    