Ataxias are a heterogeneous group of diseases. They can occur at any age and have various causes. Most ataxias are rare diseases and many are genetic disorders. A large and steadily increasing number of underlying gene defects are known. The path to the correct diagnosis is often challenging. This overview summarizes the typical findings for the most important acquired, hereditary and non-hereditary degenerative ataxias. The focus is on ataxias with adult onset.
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