Fig. 1From: Routine immunohistochemistry study for polyomavirus BK nephropathy in transplanted kidney biopsies, is it recommended?a Hematoxilin and Eosin stained sections shows medullary kidney tissue without significant pathologic finding (100X), b IHC study for SV40 reveal infection of some tubular epithelial cells (100X). c This biopsy specimen shows mild interstitial inflammation and tubular epithelial cells with suspicious atypical nuclei but not typical viral inclusion (400X). d IHC study (SV40) confirmed infection of epithelial cells with BK virus (400X). e Another sample shows typical basophilic ground-glass viral inclusions in tubular epithelial cells (400X) and f strong positive reaction for SV40 (400X)Back to article page