Parkinsonism

Parkinsonism is defined as bradykinesia in combination with either rest tremor, rigidity, or both. Parkinson’s Disease is the most common cause of parkinsonism and remains a clinical diagnosis that relies on history and supportive exam findings. Additional etiologies of parkinsonism include drug and toxin-induced, vascular, and other neurodegenerative conditions. A diagnosis of Parkinson’s Disease requires at least 2 cardinal motor manifestations and exclusion of other etiologies.