Below is an instruction from Human. Write a response.
    ### Instruction:
    How to diagnose Parasites - Echinococcosis ?
    ### Response:
    The presence of a cyst-like mass in a person with a history of exposure to sheepdogs in an area where E. granulosus is endemic suggests a diagnosis of cystic echinococcosis. Imaging techniques, such as CT scans, ultrasonography, and MRIs, are used to detect cysts.
    