Helical CT Evaluation of Acute Right Lower Quadrant Pain: Part I, Common Mimics of Appendicitis

Jinxing Yu; Ann S. Fulcher; Mary Ann Turner; Robert A. Halvorsen


Am J Roentgenol. 2005;184(4):1136-1142. 

In This Article

Infectious Ileocolitis

Infectious ileocolitis is usually caused by Yersinia, Campylobacter , or Salmonella organisms. The characteristic CT features of infectious ileocolitis include wall thickening of the terminal ileum, cecum, and a portion of the ascending colon (Fig. 15) and enlargement of the mesenteric lymph nodes. Identification of the normal appendix and lack of periappendiceal fat stranding help to exclude appendicitis.

45-year-old man with Salmonella ileocolitis. Axial CT scan shows thickened cecum (C) and terminal ileum ( arrows ), with latter mimicking abnormal appendix.


Comments on Medscape are moderated and should be professional in tone and on topic. You must declare any conflicts of interest related to your comments and responses. Please see our Commenting Guide for further information. We reserve the right to remove posts at our sole discretion.
Post as: