Figure 2.

Dysplastic urothelium (A and C) (hematoxylin eosin, original magnifications × 200). Cytoplasmic immunoreactivity in dysplastic urothelium to CK20 in 2/3 of the urothelium sparing the basal layer and nuclear 2+ immunoreactivity to p53 (original magnification × 200 (B)). Cytoplasmic full-thickness immunoreactivity in dysplastic urothelium to CK20 (original magnification × 100 (D)).