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Washington University Experience | MISCELLANEOUS | Idiopathic Hypertrophic Pachymeningitis (IgG4 Disease) | 1H2 Idiopathic Hypertrophic Pachymeningitis (hyper-IgG4, Case 1) dura ISH Lambda 2
The population of cells is most consistent with polytypia, with a kappa to lambda ratio of 3–4:1.
