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Washington University Experience | MISCELLANEOUS | Idiopathic Hypertrophic Pachymeningitis (IgG4 Disease) | 1F3 Idiopathic Hypertrophic Pachymeningitis (hyper-IgG4, Case 1) dura IgG4 4
1F3 Additional image of IgG4 stained neurosurgical material. The IgG4 to IgG ratio was markedly increased in some sites (>4X). In-situ hybridization for EBER was negative. Molecular PCR studies were negative for clonal rearrangement.
