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Washington University Experience | MISCELLANEOUS | Idiopathic Hypertrophic Pachymeningitis (IgG4 Disease) | 1E1 Idiopathic Hypertrophic Pachymeningitis (hyper-IgG4, Case 1) dura IgG 5

1E1-3 This series of IgG stained images (with increased background stain) shows a population of IgG immunoreactive plasma cells. Counts made on the population of IgG cells expressed as #/HPF range from 9-13 HPF (IgG IHC)

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