Parkinsonism is a general term for the clinical features of bradykinesia plus at least one of tremor, rigidity, and/or postural instability. Parkinson's disease is the most common form of Parkinsonism. Other causes of Parkinsonism include drug-induced Parkinsonism, cerebrovascular disease, Lewy body dementia, multiple system atrophy, and progressive supranuclear palsy.
This is a companion discussion topic for the original article at https://patient.info/doctor/neurology/parkinsonism-and-parkinsons-disease