Acute hemorrhagic leukoencephalitis (AHLE) is a rare, fulminant CNS demyelinating condition usually diagnosed at autopsy. We report the clinical, laboratory, radiographic, and pathologic features of the first nonfatal case of pediatric AHLE confirmed by brain biopsy. Pathologic diagnosis of this condition may be critical to exclude more-common processes and to expedite the decision to administer high-dose corticosteroid therapy, which is potentially lifesaving.
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