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A 56-year-old man is evaluated for dyskinetic gait disorder. His gait is high-stepping, and he appears to strut on his toes, holding his elbows in a flexed position and his spine erect<br><br>Which of the following conditions is a likely cause of this gait disorder?
Explanation
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Manganese toxicity, which may occur as an occupational exposure for welders or due to methcathinone intoxication, may be associated with a dyskinetic walk known as the cock-walk. This dyskinetic walk is characterized by a high-stepping gait,with erect spine and flexed elbows.
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Reference
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Fasano A, Bloem BR. Gait disorders. Continuum (Minneap Minn). 2013 Oct;19(5 Movement Disorders):1344-82. doi: 10.1212/01.CON.0000436159.33447.69. PMID: 24092293.
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Option 1
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Is Correct (Option 1):
Manganese toxicity
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Option 2
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Is Correct (Option 2):
Myasthenia gravis
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Option 3
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Is Correct (Option 3):
Parkinson disease
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Option 4
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Is Correct (Option 4):
Stiff person syndrome
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