Multiple system atrophy (MSA) is a sporadic neurodegenerative disorder characterized clinically by various combinations of parkinsonian, autonomic, cerebellar, or pyramidal signs and pathologically by cell loss, gliosis, and a-synuclein-positive glial cytoplasmic inclusions in several brain and spinal cord structures. The clinical recognition of MSA has improved, and the recent consensus diagnostic criteria have been widely established in the research community as well as in movement disorders clinics. Although the diagnosis of this condition is largely based on clinical expertise, several investigations have been proposed in the last decade to assist in early differential diagnosis. Symptomatic therapeutic strategies are still limited.
Key words: multiple system atrophy, clinical presentation, diagnosis, treatment.
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