Acute Cerebellar Ataxia

(Cerebellitis)

Definition

Acute cerebellar ataxia is a disorder of the nervous system. It is the sudden onset of a disturbance in coordination. The cerebellum is the part of the brain that plays an important role in balance and coordination. It does not function properly in the case of cerebellar ataxia.
Cerebellum (Darker Pink Section)
Bottom view brain
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Causes

Acute cerebellar ataxia may be caused by genetics, viral infections, autoimmune disorders, or injury. In some cases, the cause is unknown.

Risk Factors

Acute cerebellar ataxia is more common in young children, but it can occur at any age. Other factors that may increase your risk of acute cerebellar ataxia include:
  • Viral infections, such as chickenpox , Coxsackie virus, Epstein-Barr, or HIV
  • Bacterial infections such as Lyme disease
  • Exposure to certain toxins, such as lead , mercury , thallium, alcohol , and organophosphates found in insecticides
  • Cerebellar hemorrhage, abscess, blood clot, or obstruction of an artery
  • Paraneoplastic syndromes—occurs when the immune system attacks the cerebellum in the area of a cancer
  • Certain vaccinations
Recurrent acute cerebellar ataxia may marked by periods of inactivity and flares. Factors that may increase your chance of recurrent acute cerebellar ataxia include:

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