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Washington University Experience | INFECTION | Viruses | PML (JC Virus) | PML - Microscopic Pathology | 2A3 PML (Case 2) H&E 10X A

2A3,4 One of these pale foci is shown at 10X and 20X magnification stained sequentially with a variety of stains, in this case H&E. Myelinated white matter is typically eosinophilic and pallor often accompanies demyelination. There are scattered enlarged, virally infected oligodendrocytes which commonly cluster at the active edges of lesions.

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