Which pathologic finding differentiates multiple system atrophy (MSA) and progressive supranuclear palsy (PSP) from idiopathic Parkinson disease (PD)?

Updated: Sep 24, 2018
  • Author: Stephen M Bloomfield, MD; Chief Editor: Selim R Benbadis, MD  more...
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Neurodegeneration affecting axons may be a distinctive characteristic that can differentiate patients with MSA or PSP patients from patients with idiopathic PD. Neurofilament proteins reflecting axonal degeneration are increased in the CSF of patients with MSA or PSP.

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