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Cerebellar disorder

cerebellar disorder is uncommon problem but often distressing to patient usually caused by drug toxicity like phenytoin.

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Cerebellar disorder

  1. 1. CEREBELLAR DISORDERS Dr Bhupendra Shah Assistant Professor B.P.koirala institute of health sciences
  2. 2. Why you need it?  Medical emergency  Frequent drug toxicity  Distressing to your patient
  3. 3. Objectives  Cerebellar anatomy  Cerebellar funtions  Cerebellar disorder  Clinical features  summary
  4. 4. Cerebellar anatomy
  5. 5. Cerebellar vascular supply
  6. 6. Cerebellar homuncolus
  7. 7. Similarity ???and difference???
  8. 8. Archicerebellum (floculonodular lobe-balance) Paleocerebellum (anterior lobe-tone,posture ) Neocerebellum (posterior lobe-coordination)
  9. 9. Cerebellar homunculus
  10. 10. Etiology of cerebellar disorders Symmetrical Asymmetrical  Acute-alcohol,lithium, phenytoin, viral encephalitis  Subacute-mercury poisoining, -nutritional  Chronic-drugs, -hypothyroidism, - paraneoplastic  Acute-vascular ,abscess  Subacute:neoplasm, demylinating disease  Chonic:congenital :vascular -gliosis
  11. 11. Clinical features  Imbalance  Fall  Abnormal ocular movement  Slurred speech  tremor
  12. 12. Cerrebellar signs  Dyssynergia  Dysmetria-over or undershooting  Dysdiadochokinesia  Rebound phenomenon  Hypotonia  Ataxic gait  Scanning speech  Nystagmus  Pendular knee jerk  Intention tremor  titubation

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