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  • Title: Sudden death in toddlers with viral meningitis, massive cerebral edema, and neurogenic pulmonary edema and hemorrhage: report of two cases.
    Author: Krous HF, Chadwick AE, Miller DC, Crandall L, Kinney HC.
    Journal: Pediatr Dev Pathol; 2007; 10(6):463-9. PubMed ID: 18001157.
    Abstract:
    Viral (lymphocytic) meningitis typically does not cause sudden death, especially in the absence of severe inflammation in the brain or other organs. We report 2 toddlers with clinical evidence of a viral infection who died unexpectedly and were found at autopsy to have lymphocytic meningitis associated with severe brain edema, transtentorial herniation, neurogenic pulmonary edema and hemorrhage, and cardiomegaly. Influenza A virus, demonstrated in tracheal epithelium by immunocytochemistry, is the presumed cause of the mild meningitis in 1 case; adenovirus was cultured from swabs of the brain and anus in the 2nd case. Current concepts of neurogenic pulmonary edema and acute cardiac dysfunction associated with intracranial disease are discussed in considering the mechanism of sudden death in these toddlers. These cases emphasize the possibility that mild intracranial viral infections may be a rare cause of sudden death via lethal cardiopulmonary complications. They also underscore the importance of a comprehensive autopsy, including detailed neuropathologic examination and viral testing, in determining of the cause of unexpected death in toddlers.
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