Cerebral palsy is defined as a medical condition which affects control of the muscles in the body. Cerebral indicates "head," meaning a problem with a part of the brain, while palsy indicates a problem with the muscular system. There are several types of cerebral palsy, including spastic, ataxic, mixed and athetoid. Symptoms of athetoid cerebral palsy usually present before the patient is a year old and can be diagnosed as early as at birth.
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eHow Article: About Athetoid Cerebral Palsy