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Similarities of WG, MPA and PI-NCGN





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WG, MPA, and PI-NCGN share a pathologically identical glomerular lesion
(i.e., pauci-immune necrotizing and crescentic glomerulonephritis)
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WG and MPA have systemic small vessel vasculitis that resembles
the glomerular lesion pathologically
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WG differs only with respect to superimposed necrotizing
granulomatous inflammation
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Slide 10 of 12
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