Focal myoclonus-dystonia of the leg secondary to a lesion of the posterolateral putamen: Clinical and neurophysiological features


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We report on a patient with spontaneous and stimulus-sensitive myoclonic jerks and dystonia of the right leg that had been present since infancy. Magnetic resonance imaging showed a linear area of gliosis confined to the left posterolateral putamen. This is the first report of focal myoclonus-dystonia of the lower limb secondary to a putaminal lesion. © 2003 Movement Disorder Society