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In a series of 225 patients with astrocytomas(grade I-IV)of the basal ganglia and the thalamus,20 had a movement disorder.In all patients the histological diagnosis was verified by stereotactic biopsy.Tremor was observed in twelve patients,dystonia in eight,chorea in three,and chorea/ ballismus and myoclnus in one.The tumor involved the thalamus in 16 patient.Corticospinal tract dysfunction was evidence in 70%of the patients with movement disorders and in 73%of those without.Demographic,clinical, histological and neuroradiological data of the patients with a movement disorder were compared with the data of patients without.CT data yielded no differences with respect to the involvement of anatomical structures. Movement disorders were significantly assoicated with low-grade astrocytomas. |
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astrocytoma
basal ganglia
basal ganglia,lesion of
CAT scan
CAT scan,abnormal
chorea
choreoathetosis
dystonia
hemiparesis
movement disorder
movement disorder,extrapyramidal
myoclonus
neoplasm,intracranial
neoplasm,primary intracerebral
neoplasm,primary of CNS
Parkinson disease
review article
thalamic tumors
thalamus,lesion of
tremor
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