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Multiple small diverticula are seen at the left hemicolon. Focal wall thickening with mild surrounding fat stranding is also observed at the proximal of descending colon, suggesting colonic diverticulitis.
In addition, a 62 x 75 mm mass is seen in the lower pole of the left kidney that bulges into the renal collecting system. The neoplasm has a similar density to normal renal parenchyma on non-enhanced CT scan. After IV contrast media injection, the attenuation value increased from 36 HU to 98 HU. A nephrographic phase CT scan shows that the mass enhances less than normal renal parenchyma.
The gallbladder is not seen at the anatomical location due to prior resection.