Published online Apr 7, 2015. doi: 10.3748/wjg.v21.i13.3921
Peer-review started: June 30, 2014
First decision: July 21, 2014
Revised: September 11, 2014
Accepted: October 20, 2014
Article in press: October 21, 2014
Published online: April 7, 2015
Core tip: To study the clinical features and computed tomography (CT) findings of appendiceal diverticulitis, we retrospectively reviewed 451 patients who had undergone appendectomy in our institution. Among 451 patients, 44 (9.7%) were diagnosed with appendiceal diverticulitis. Patients with appendiceal diverticulitis were older and had a longer duration of illness. Perforation rates in patients with appendiceal diverticulitis were higher. CT findings suggestive of appendiceal diverticulitis included the absence of a fluid collection in the appendix, absence of an appendicolith (92% vs 52%, P = 0.004), and abscess formation. These findings make it possible to clinically differentiate appendiceal diverticulitis from acute appendicitis.