Below is an instruction from Human. Write a response.
    ### Instruction:
    What is (are) chorea-acanthocytosis ?
    ### Response:
    Chorea-acanthocytosis is primarily a neurological disorder that affects movement in many parts of the body. Chorea refers to the involuntary jerking movements made by people with this disorder. People with this condition also have abnormal star-shaped red blood cells (acanthocytosis).
    