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Washington University Experience | INFECTION | Viruses | PML (JC Virus) | PML - Granule Cell Neuronopathy | 1C2 PML, Granule cell pattern (Case 1 surgical specimen) area A SV40 40X copy
Nearly sequential adjacent slide to #1C1 stained for SV40 shows very little evidence of granule cell cytopathy. Purkinje cells are unlabeled (arrows).
