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The major movement disorders include Parkinson‘s disease,
Huntington‘s disease, Wilson‘s disease, Tourette‘s
syndrome. An outline of common movement disorders is given in Table
17–1.
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Several different types of abnormal movements or signs of these
disorders are recognized, including athetosis,
ballismus, chorea, dyskinesia, dystonia, tics and tremor as
described in Table 17–2. These movements can be caused
by a variety of general medical conditions and certain drugs, in
addition to the neurologic disorders mentioned.
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To understand how the movement disorders are treated, it is important
to understand their underlying pathogenesis. Many of the movement
disorders have been attributed to disturbances of the basal ganglia,
but the precise function of these anatomic structures is not yet
fully understood, and it is not possible to relate individual symptoms
to involvement at specific sites. Furthermore, individuals with
the same disease, such as Parkinson’s disease, can present
very differently in ...