The Parkinson-plus syndromes include 1) multi-system atrophy, 2) progressive supra-nuclear palsy and 3) corticobasal degeneration. Multi-system atrophy Multi-system atrophy (MSA) is a rare adult-onset sporadic neurodegenerative disorder. There are two main subtypes, as identified by its dominating symptomatology. MSA-P is when parkinsonian symptoms predominate, and ...

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