2006, Number 2
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Rev Mex Neuroci 2006; 7 (2)
Clinical and radiological spectrum of acute disseminated encephalomyelitis
Dondis CD, De la Maza FM
Language: Spanish
References: 22
Page: 170-178
PDF size: 226.55 Kb.
ABSTRACT
Objective: To identify the clinical and radiological spectrum of the acute disseminated encephalomyelitis (ADEM) and to make a critical analysis of literature.
Patients and method: Prospective revision of patients evaluated in San Jose Hospital Tec of Monterrey between December 2002 and 31of December 2004.
Results: Five patients are described, with ages between six and 55 years, with polysintomatic manifestations in single-phase form, related to multiregional cerebral pathology, in white and gray substance by cerebral magnetic resonance (MR). Autoimmunity postinfectious association in two patients is described, postsensitization to strange proteins in another one, and without infectious asso-ciation or postsensitization in the other two. Spectroscopy by magnetic resonance (SMR) application in substitution of the cerebral biopsy in a patient with tumor presentation. The more frequent clinical presentations were motor deficit (100%), ataxia (100%), language alterations (60%), alert status deterioration (60%), cerebellum alterations (40%) and convulsions (40%). The most frequent topography by cerebral MR were fronto/temporo/parietal regions in 80%, basal ganglion (80%) and thalamic injuries (60%). Those patients with alert status alteration had more severe lesional load in white substance and deep gray substance in bihemisphere form. Clinical recurrences of the injuries in the period of pursuit were not observed.
Conclusion: A specific biological marker absence and clinical diagnostic guide difficult the differentiation with multiple sclerosis. The most important factors for this distinction are the antecedent of viral prodrome, multiplicity of neurologic symptoms with single-phase course, ataxia beginning in children, a severe lesional load in cerebral MR that involves the white substance and the deep gray, absence of black holes; and, in cephalorrhachidia liquid, absence of oligoclonal bands.
The EMR is a useful resource that can avoid the cerebral biopsy in select cases.
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