A 23 year old female was diagnosed 7 years ago with multiple sclerosis. The patient had 4 acute attacks 7 years ago, and since then she has been treated by Avonex. The patient had no attacks since then, feel healthy and lead a normal healthy life as a busy university student. She enjoys sports several times a week, and there are no problems regarding her physical and mental function. Neurologically, the only reminiscence of her illness is a positive Babinsky sign in the left leg and a temporal blindness in the left eye.