Case Report
Copyright ©The Author(s) 2021.
World J Clin Cases. Jan 16, 2021; 9(2): 416-421
Published online Jan 16, 2021. doi: 10.12998/wjcc.v9.i2.416
Figure 1
Figure 1 Abdominal X-ray. The colon is filled with air from the ascending colon to the descending colon. An orange arrow indicates a horse saddle shadow caused by a fecalith.
Figure 2
Figure 2 Computed tomography. A: The coronal image shows a fecalith impaction at the sigmoid-descending junction (arrow); B: Computed tomography colonography shows a large diverticulum in the transverse colon and mild stenosis with thumb printing in the descending colon.
Figure 3
Figure 3 Colonoscopic and colonographic examinations. A: An impacted fecaloma is found by colonoscopy; B: Longitudinal redness presents ischemic changes in the descending colon; C: Narrow-band imaging clearly enhances the colitis; D: Colonography enhanced with gastrografin shows a diverticulum 35 mm in diameter.
Figure 4
Figure 4 Immunohistochemical analysis of the margin of the diverticulum. The removed diverticulum shows a pseudodiverticulum on the left side. Desmin immunostaining confirms the existence of the muscularis propria at the normal colonic margin but not in the diverticulum (× 40).