Enhanced CT examinations can detect appendicitis, especially after contrast injection, and the swollen, congested appendix will show mildly enhancing changes, as well as facilitate the detection of hyperechoic, high-density fecal stones in the appendiceal lumen and significant thickening of the appendiceal duct wall. From an imaging perspective, an appendix with a wall greater than 6 mm is pathologically significant. In addition, patients with appendicitis usually have a combination of peritubular exudate and peritoneal fluid formation, which can be easily visualized with CT. In patients with combined abscesses, inhomogeneous changes in fluid density are found, as well as varying degrees of dilatation of the peri-appendiceal intestinal canal, which is a manifestation of regional paralytic intestinal obstruction complicating the infection. Therefore, enhanced CT can also provide a clear diagnosis of appendicitis.