Through the analysis of the ultrasound manifestation of colonic diverticulum, the application value of ultrasound in the clinical diagnosis of colonic diverticulum was discussed.

Retrospective analysis of 25 cases of colonic diverticulum confirmed by surgical pathology and (or) colonoscopy, to observe the location and shape of the lesion, whether there is thickening of the local intestinal wall, whether there is a lack of muscle layer, whether the echo of the retina around the lesion changes, whether there is exudate, whether it is combined with fecal stone or gas, and so on.

Among the 25 patients, there were 67 lesions, single 16 cases with 16 lesions, and multiple 9 cases with 51 lesions (2 to 20 cases, only 1 case with multiple diverticulum and 1 tube, and the rest were sacs of different sizes) There were 15 cases of ascending colon, 4 cases of cecum, 2 cases of descending colon, 2 cases of sigmoid colon, 1 case of colonic hepatic artery, 1 case of ascending colon with descending colon, including 13 cases of appendicitis, 3 cases of peritonitis, 2 cases of intestinal perforation, mesenteric. One case was reversed, one case of intestinal bleeding, and one case of abdominal abscess.Ultrasound showed 19 cases of cystic collaterals in the colon, 4 cases with capsular shape and local intestinal wall thickening, 1 case with blind tubular structure, and 1 case with localized hypoechoic bulge. There were 13 cases with muscular defect, 16 cases with echo enhancement of surrounding omentum, 4 cases with exudate, 8 cases with fecal stone, and 3 cases with gas.

Colonic diverticulum sonograms are often characterized by cystic structures near the colon, localized with thickened intestinal wall, partially associated with muscular layer defects, easy to combine with fecal stone or gas, easy to have appendicitis, all with varying degrees of inflammation, a few combined perforation, intestinal ultrasound can provide an important visual basis for clinical diagnosis, especially in the exclusive diagnosis, it is worthy of clinical application.