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Washington University Experience | MISCELLANEOUS | Idiopathic Hypertrophic Pachymeningitis (IgG4 Disease) | 6H1 IgG4 Disease Adenohypophysis (Case 6) A2 ISH Kappa 4X
6H1,2 The plasma cell population is polyphenotypic by in situ hybridization for kappa (6H1) and lambda (6H2) light chains.