Below is an instruction from Human. Write a response.
    ### Instruction:
    What causes Dystonia 8 ?
    ### Response:
    Are there non-genetic causes of paroxysmal nonkinesigenic dyskinesia? Yes. Sporadic (non-genetic) causes of paroxysmal nonkinesigenic dyskinesia have been reported in the literature. Non-genetic causes include lesions of the basal ganglia due to multiple sclerosis, tumors, and vascular lesions.
    