Atypical Parkinsonism
Atypical parkinsonisms are conditions in which an individual experiences some of the signs and symptoms of Parkinson's disease (PD) -- tremor, slowness, rigidity (stiffness), and/or walking and balance problems -- but does not have PD. Atypical parkinsonism can be due to certain medications (some anti-nausea and antipsychotic drugs), other brain disorders (repeated head injury or multiple small strokes) or neurodegenerative diseases.
The neurodegenerative diseases, which cause damage or death of brain cells, include
- Lewy body dementia,
- progressive supranuclear palsy (PSP),
- corticobasal degeneration (CBD), and
- multiple system atrophy (MSA).
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