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Influence of Fc blockade on the cytosolic staining patterns produced pituitary antibodies. A and B, Before and after effect of Fc blockade when using the serum from a healthy control with a perinuclear pattern: the perinuclear staining (A) disappears (B) when Fc receptors were blocked. C and D, Before and after effect using the serum from a hypophysitis patient with a granular pattern: the staining pattern is unaffected by Fc blockade. Magnification, ×40; scale bars, 100 μm.
