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Fig. 14B —49-year-old man with abdominal pain who presented for MDCT of pelvis. Volume-rendered axial reconstruction image shows left medial umbilical ligament (dashed arrows) as remnant of left umbilical artery coursing from left internal iliac artery (thin straight arrow) to umbilicus. Also, note anterior portion of right medial umbilical ligament (curved arrow) and median umbilical ligament as remnant of urachus (thick straight arrow).