[Symptomatology of movement disorders in children].

Abnormal involuntary movements are common symptoms in children. The neuroanatomical basis for these movement disorders is the extrapyramidal system. Although present at rest they may be more intensive during the will - depending motor activity and increased under stress. They are almost absent during sleep. The underlying causal factors of involuntary movement disorders include metabolic disorders, progressive neurodegenarative diseases, central nervous system infection. The symptomatology of chorea, athetosis, dystonia, tremor, myoclonus and tics are discussed. Special attention is paid to differential diagnosis of myoclonus, chorea and tics as well as to movement disorders and epilepsy.