Presentation
Left flank pain with macroscopic hematuria.
Patient Data
Irregular thickening of the left lateral bladder wall with an isodense soft tissue mass with punctate calcification probably within a bladder diverticulum with heterogeneous enhancement infiltrating the perivesical fat and invading the vesicoureteric junction and distal ureter with subsequent ipsilateral uretrohydronephrosis and delayed cortical nephrogram well-visualized on excretory phase. No apparent extension to the seminal vesicles.
No pelvic or para-aortic lymphadenopathy is seen.
No distant abdominal or lung metastasis (CT chest not shown).
Case Discussion
CT features of a heterogeneously enhancing soft tissue mass of the posterolateral bladder wall probably within a diverticulum invading the vesicoureteric junction and distal ureter, histologically confirmed as urothelial carcinoma with squamous differentiation (UCSD) within a bladder diverticulum.