A Clinical and Pathological Variant of Acute Transplant Glomerulopathy

Figure 5

C4d immunostaining shows no staining of interstitial capillaries. There is positive staining of glomeruli and arteries endothelial lining, which is a normal internal control finding on cryostat sections immunostained with the C4d antibody (Quidel, San Diego, CA) ((a) including high magnification inset (a-1)) (immunohistochemistry). Only rare capillaritis was observed ((b) red arrow) (hematoxylin and eosin stain).