Intention tremor

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Intention tremor is a dyskinetic disorder consisting of wide tremor during voluntary movements. A tremor that gets worse when a person is moving is called an intention tremor. It is the result of dysfunction of the cerebellum, in particular of the cerebellar hemispheres ("cerebro-cerebellum"), and is therefore part of the characteristic symptoms of cerebellar ataxia.

There is a very wide differential diagnosis of aetiologies affecting the cerebellum, which include medical drugs, alcohol intoxication, focal lesions (including MS, stroke, and tumours). Primary cerebellar disease is relatively uncommon.

Not to be confused with a resting tremor as seen in Parkinson's Disease.

[edit] External links

• http://www.mult-sclerosis.org/intentiontremor.html
• http://www.nationalmssociety.org/site/PageServer?pagename=HOM_LIB_sourcebook_tremor
• http://www.hmc.psu.edu/healthinfo/t/tremor.htm