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Non-enhanced computed tomography (CT) of the abdomen showing an absent infrarenal inferior vena cava. The left renal colic (left ureteral calculus with associated ureterohydronephrosis and peri-ureteral/renal fat stranding) was causing the patient's symptoms.
Absent infrarenal inferior vena cava, infra-pubic subcutaneous varices, calcified adrenal glands, and hypodense liver lesion of the segment VI (+ steatosis) were all incidental findings.
Further incidental finding of mild increased attenuation of central small bowel mesentery with well defined edge, and containing non-enlarged lymph nodes with a fat halo around them, indicating mesenteric panniculitis.