Below is an instruction from Human. Write a response.
    ### Instruction:
    What are the symptoms of Sarcoidosis ?
    ### Response:
    What are the signs and symptoms of Sarcoidosis? Many people who have sarcoidosis don't have symptoms. Others may feel like they are coming down with the flu or a respiratory infection. While almost any body part or system can be affected, the lungs are most commonly involved.
    