Tourettism secondary to multiple sclerosis

Case presentation: Previously healthy adolescent, started at age 15 with limitation of abduction the right eye, spontaneous improvement after two months. A brain magnetic resonance imaging was performed, which showed multiple supratentorial and infratentorial demyelinating lesions, without gadolinium enhancement, prednisone 60 mg/day started. After 6 months, she admitted to service, due suppressable involuntary cervical hyperkinetic movements, an increase in frequency for 3 days. Neurological examination hemiparesis predominantly crural, tics neck, simple vocal tics, incomplete hemihypoesthesia on horizontal diplopia right. pulse methylprednisolone 1 g/day performed 5 days, no tics.