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Trigeminal neuralgia(TN)occurred in 35 patients(1.9%)from a large multiple sclerosis(MS)clinic population(N=1,882).TN began on average 11.8 years after the first MS symptom but in five patients was the first symptom of MS,preceding the next MS symptom by 1 to 11 years.The onset of MS was later in the patients who had TN,and bilateral TN occurred more frequently than expected(in 14%of TN patients).The age at onset of TN was no younger than in idiopathic TN except when TN was the first MS symptom.Most patients had a good result from medical or surgical therapy. |
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