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Multiple sclerosis(MS)can present clinically after age 59,but only rarely. In a large MS population(N=2,019),0.6%of patients had their first symptom at age 60 or older.Of this group,six had clinically definite MS,two had laboratory-supported definits MS,and four had clinically probable MS.The onset at this age was characteristically a slow deterioration of motor function.Most(10 or 12)of these very late-onset patients had a progressive course of disease from onset. |
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