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Washington University Experience | MISCELLANEOUS | Hypophysitis | Hypophysitis - Granulomatous | 1I6 Hypophysitis, granulomatous (Case 1) PC rich area IgG4 20X 2
The same areas as 1I1-3 stained for IgG4 (1I4-6) show significantly fewer labeled cells (IgG4/IgG ratio less than 10%).