PMC6572673_01
Wall thickening of the sigmoid colon and rectum.
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F0001
Non-contrast enhanced CT of the abdomen and pelvis disclosed thickening of the wall from ascending colon to the rectum (Figure 1).
Endoscopic view of transverse colon mucosa showing diffuse redness, erosion, ulcer, and hemorrhage.
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F0002
A lower digestive tract endoscopy was performed to examine the edematous changes extending from the colon to the rectum on abdominal CT suspected to be caused by alcohol-induced chemical proctocolitis (Figure 2).