Toothpick impaction with sigmoid colon pseudodiverticulum formation successfully treated with colonoscopy

Figure 1 A: The endoscopic appearance of the toothpick in the sigmoid colon and removal of the toothpick was achieved using foreign-body extraction forceps. B: The endoscopic appearance of impacted colonic mucosa after removal of toothpick.

Figure 2 Initial abdominal CT shows severe wall thickening, pericolic fat infiltration and peritoneal thickening in the distal sigmoid colon. In the serosal surface, a small air-containing cavity lined by thin epithelium (arrow) is noted, which is consistent with a pseudodiverticulum.

Figure 3 Follow-up CT shows improvement of sigmoid colonic inflammation and disappearance of the pseudodiverticulum.