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Cranial Nerves

Cerebellar Lesions

February 15th, 2021


Cerebellar pathology produces a specific set of clinical findings that can be readily elicited on clinical examination. Patients with lesions within the cerebellum typically present with a wide-based, unsteady gait with dyscoordination and nystagmus.
  • Look For

  • Wide-based, ataxic gait
  • Dysarthria
  • Intention tremor
  • Dysmetria
  • Dysdiadochokinesis
  • Muscle wasting
  • Nystagmus
  • Causes of Cerebellar Lesions

  • Trauma
  • Vascular - ischaemia, haemorrhage
  • Infection - abscess, tuberculosis
  • Malignancy
  • Demyelination - multiple sclerosis
  • Drugs / toxins - alcohol, lithium, phenytoin, chemotherapy
  • Inherited - Friedrich's ataxia, spinocerebellar ataxia
  • Paraneoplastic syndrome
  • Hypothyroidism
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