Clinical and computed tomography findings of appendiceal diverticulitis vs acute appendicitis

Figure 1 Representative computed tomography images of appendiceal diverticulitis. An oblique coronal reformation of a contrast-enhanced CT (5-mm thick) (arrow) showing localized periappendiceal abscess. However, the appendix itself is not visualized clearly.

Figure 2 Computed tomography scan showing appendiceal diverticulitis. An oblique coronal reformation of contrast-enhanced CT scan (5-mm thick) showing an inflamed diverticulum (arrow) and stranded surrounding fat. The inflamed diverticulum is visualized as a small, round cyst with an enhancing wall attached to the distal segment of the appendix. However, this patient’s appendix was not filled with fluid or enlarged.

Figure 3 Representative computed tomography scan showing acute appendicitis. An oblique coronal reformation of contrast-enhanced computed tomography scan (5-mm thick) (arrow) is showing an enlarged appendix with fluid collection in the appendiceal lumen and appendicolith.