Multiple system atrophy (MSA) is a rare, degenerative neurological disorder affecting your body's involuntary (autonomic) functions, including blood pressure, breathing, bladder function and muscle control.
Formerly called Shy-Drager syndrome, MSA shares many Parkinson's disease-like symptoms, such as slow movement, rigid muscles and poor balance.
Treatment includes medications and lifestyle changes to help manage symptoms, but there is no cure. The condition progresses gradually and eventually leads to death.
Multiple system atrophy care at Mayo Clinic