multiple system atrophy, parkinson variant
Multiple system atrophy, also known as ShyâDrager syndrome, is a rare neurodegenerative disorder characterized by tremors, slow movement, muscle rigidity, and postural instability due to dysfunction of the autonomic nervous system, and ataxia. This is caused by progressive degeneration of neurons in several parts of the brain including the substantia nigra, striatum, inferior olivary nucleus, and cerebellum. Many people affected by multiple system atrophy experience dysfunction of the ...