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Ramollissements cérébelleux. Présentation clinique et évaluation en tomodensitométrie cérébrale [Cerebellar infarct. Clinical presentation and x-ray computed tomography of the brain]
Schweizerische Medizinische Wochenschrift
A series of 12 patients with cerebellar infarcts diagnosed by computerized tomography are reviewed. The clinical features of cerebellar infarctions cover a wide spectrum, mimicking symptoms and signs from an acute labyrinthitis to a rapidly expanding posterior fossa mass lesion with brain stem and cerebral dysfunction. Two patients were asymptomatic and three showed signs of cerebellar dysfunction only. Three patients had evidence of brain stem dysfunction with cranial nerve palsies accompanying the cerebellar deficit. Two presented a pseudovestibular form with sudden onset of nausea, vomiting, rotary dizziness and ataxia. A pseudotumoral form with intracranial hypertension was found in two cases, in which softening tissue acts as a rapidly expanding posterior foss mass lesion. It is difficult to identify the exact artery involved in a cerebellar infarct because of the collateral circulation and connections between the three major arteries. Atherosclerosis and general decrease in blood flow can be regarded as the most likely factors precipitating focal cerebellar infarction. Surveillance is necessary during the first days with anti-edematous therapy. Rapid deterioration of consciousness should be considered a sign of increasing intracranial pressure progressing with the development of hydrocephalus. If necessary, surgical decompression by external drainage or by direct access to the posterior fossa can be carried out.
Cerebellar Ataxia/etiology, Cerebellar Diseases/complications, Cerebellar Diseases/etiology, Diagnosis, Differential, Humans, Hypertension/complications, Hypertension/etiology, Tomography, X-Ray Computed
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