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Washington University Experience | INFECTION | Viruses | St Louis Encephalitis | 1A5 Saint Louis Encephalitis (Case 1) Midbrain 1A

St Louis encephalitis very frequently involves the midbrain and in this case resulted in loss of nigral neurons with liberation of neuromelanin pigment into the adjacent parenchyma, lymphocytic cuffing and microglial prolilferation (H&E).

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