Other Differential Diagnoses
There are other important differential diagnoses.
Vascular parkinsonism
Features are:
Stuttering progression
Minimal tremor
Lower limbs affected more than upper limbs
Drug-induced parkinsonism
Features are:
- Younger patient
- Taking dopamine antagonists or lithium
Multi-system atrophy
Features are:
- Marked postural hypotension
- Sphincter disturbance
- Cerebellar signs
Dementia with Lewy bodies
Features are:
- Early progressive dementia
- Nocturnal wandering and confusion
Progressive supranuclear palsy
Features are:
- Axial rigidity
- Failure of vertical gaze