Below is an instruction from Human. Write a response.
    ### Instruction:
    How to diagnose Cushing's Syndrome ?
    ### Response:
    Diagnosis is based on a review of a person's medical history, a physical examination, and laboratory tests. X rays of the adrenal or pituitary glands can be useful in locating tumors.
                
Tests to Diagnose Cushing's Syndrome
                
No single lab test is perfect and usually several are needed.
    