Figure 3.
Histopathological evaluation of lesions identified in mouse urothelial carcinogenesis induced by BBN. A: Normal urothelium (control group, H&E, ×400). B: Simple hyperplasia (H&E, ×600). C: Nodular hyperplasia (H&E, ×400). D: Dysplasia (H&E, ×600). E: Carcinoma in situ (H&E, ×400). F: Invasive carcinoma with squamous differentiation (H&E, ×400).