School ager with right lower quadrant pain and elevated white blood cell count

CT of omental infarction
Axial CT with contrast of the abdomen shows diffuse mesenteric fat stranding which is most prominent along the right side of the abdomen. The appendix (not pictured) measured 7-8 mm in diameter and was considered via measurement to be indeterminate for acute appendicitis.

The diagnosis was omental infarction which was seen along with a normal appendix in the operating room.