What is the prevalence of comorbid multiple system atrophy (MSA) and Parkinson disease?

Updated: Oct 17, 2018
  • Author: André Diedrich, MD, PhD; Chief Editor: Selim R Benbadis, MD  more...
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Answer

MSA and Parkinson disease

Parkinsonian symptoms can occur frequently in multiple system atrophy (MSA). Approximately 10% of patients with a diagnosis of Parkinson disease are found to have MSA at autopsy. About 29-33% of patients with isolated, late-onset cerebellar ataxia will eventually develop MSA.


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