Spontaneous rupture of the renal pelvis presenting as an urinoma in locally advanced rectal cancer

Figure 1 Clinical photograph of the patient shows lump in right iliac fossa and diversion transverse colostomy.

Figure 2 Computed tomography imaging. A: Axial contrast enhanced computed tomography (CT) of the abdomen shows a leak of contrast from the hydronephrotic right renal pelvis into the perinephric space (black arrow); B: CT coronal reconstruction shows a large retroperitoneal urinoma below the right kidney.