Figure 2.

Image of a 56-year-old woman with low-grade papillary urothelial carcinoma without perivesical invasion (A). On axial 80-second delay CT image, the border between tumour and perivesical fat tissue is regular. Images in an 82-year-old woman with high-grade infiltrating urothelial carcinoma with perivesical invasion (B). The axial 80-second delay CT image shows irregularity between tumour and perivesical fatty layer and fine linear densities in perivesical fat tissue (black arrow).