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mds21703-MDS21703.mpg13628KSegment 1. The patient presented with an acute onset of slurred speech and unsteady gait. She had evidence of poor coordination manifested by bilateral dysmetria, dysdiadochokinesia, and truncal ataxia.Segment 2. The patient had a dysarthric speech.Segment 3. The patient had a markedly increased extensor tone in her neck and trunk, together with a broad-based gait and extremely poor balance requiring assistance to walk.

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