The clinical, radiologic, neurophysiologic, and pathologic findings in 10 children with histologically proven Alexander's disease are described, and the presence of two broad clinical subgroups is confirmed. Macrocephaly, regression, and seizures are found in the infantile form, whereas bulbar signs predominate the so-called juvenile form. None of the clinical or neurophysiologic findings is pathognomonic, and radiologic features suggesting the diagnosis are not present in all cases. However, the combination of abnormalities may suggest the diagnosis and justify histologic confirmation.
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