• Intoxication, eg, alcohol, phenytoin
  • Cerebellar infarct, mass, or hemorrhage
  • Cerebellar degeneration, eg, alcoholism
  • Parkinsonism
  • Vascular (multi-infarct) dementia
  • Multiple sclerosis
  • Wernicke’s encephalopathy
  • Hydrocephalus
  • Metabolic: hyponatremia, hypothyroidism, vitamin B12 deficiency
  • Paraneoplastic syndrome, eg, breast, ovarian
  • PML (progressive multifocal leukoencephalopathy) in AIDS
  • Lyme disease
  • Neurosyphilis
  • Inherited ataxia, eg, Friedreich’s

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