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Washington University Experience | MISCELLANEOUS | Idiopathic Hypertrophic Pachymeningitis (IgG4 Disease) | 3B2 IgG4-related pachymeningitis (Case 3) H&E 2
3B2-4 The infiltrate consists of numerous lymphocytes and plasma cells in collections and infiltrating diffusely through the dural connective tissue. (H&E)
