Figure 4
From: Patterns of recurrence of bladder carcinoma following radical cystectomy
Pelvic sidewall recurrence. (a) Post-contrast axial CT through the lower pelvis showing ill-defined soft tissue thickening, which was inseparable from the left obturator internus muscle. (b) A repeat CT through the same level 3 months later showed an increase in the soft tissue along the left pelvic sidewall. A biopsy confirmed the presence of disease relapse.