Figure 7.
A 54-year-old woman had painless gross hematuria due to bladder cancer. Axial section of DWI (left) reveals a focal lesion (arrow) with SI higher than the normal bladder wall but lower than the high-grade carcinoma (arrowhead) in the left posterior wall on DWI. The focal lesion (arrow) appears hypointense on T2WI (right), and its SI is also lower than the high-grade carcinoma (arrowhead). This suspicious lesion corresponds to the urachal remnant and should not be mistaken as a low-grade tumor.