Anatomical and functional vascular changes during rat urinary bladder carcinogenesis were studied by scanning electron microscopy of vascular casts, transmission electron microscopy of bladder capillaries, and fractional distributions of 51Cr-erythrocytes, 125I-human serum albumin, and 86RbCl which were used to determine vascular volume, permeability, and perfusion. Histopathological changes an...
