Epiploic appendagitis is thought to occur as a result of spontaneous torsion, ischemia, or inflammation of an epiploic appendage of the colon. The condition presents with acute abdominal pain that can mimic appendicitis. On helical CT, the lesion shows a characteristic appearance as an ovoid fat-attenuation focus with a hyperattenuating rim associated with the serosal surface of the adjacent colon (Fig. 12). Mild inflammatory changes of the surrounding fat may be seen.
Am J Roentgenol. 2005;184(4):1136-1142. © 2005 American Roentgen Ray Society
Cite this: Helical CT Evaluation of Acute Right Lower Quadrant Pain: Part I, Common Mimics of Appendicitis - Medscape - Apr 01, 2005.