differential diagnosis

Last reviewed 05/2022

the differential diagnoses of parkinsonism includes (1):

  • Parkinson’s disease (2)
  • Alzheimer’s disease
    • dementia will be prominent from early in the disease
  • multiple cerebral infarction
  • drug-induced parkinsonism
    • phenothiazines
    • metoclopramide
  • other degenerative parkinsonian syndromes:
    • progressive supranuclear palsy
      • Steele–Richardson–Olszewski syndrome
    • multiple system atrophy
      • Shy–Drager syndrome
      • olivopontocerebellar atrophy
      • striatonigral degeneration
  • essential tremor
  • hydrocephalus
  • trauma - 'punch drunk' syndrome
  • Wilson's disease
  • post encephalitic parkinsonism - encephalitis lethargica
  • toxins:
    • carbon monoxide
    • manganese

Reference: