A 47-year-old woman with 40/22 CAG repeat expansions of ATXN2 developed ataxia. She had slow saccadic eye movements and dysmetria on the finger chase test, finger-chin test, and heel-shin slide test. While walking, she had a wide-based gait with a variable stride length and good heel strike. She had truncal titubation both while sitting and while standing. She also had jaw-opening dystonia.
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