CT
Axial non-contrast
Coronal non-contrast
Unenhanced CT performed due to renal failure.
Multiple foci of gas within left kidney, with necrotic anterior cortex/medulla, with gas extending into hilm and proximal ureter.
Surrounding mesenteric stranding and fluid in left paracolic gutter.
Left colon diverticulosis, some more acute inflammation adjacent to the kidney.
No obstruction of the left ureter. Unremarkable right kidney and collecting system. Catheterised urinary bladder.