case_images: PMC6925915_01
case_images: (a, b) Supine and upright abdominal radiographs show decreased amount of bowel gas in the lower abdomen/pelvic cavity.
case_images: CRIS2019-9135378.001.jpg
case_images: PMC6925915_01_CRIS2019-9135378.001.jpg
case_images: fig1
case_images: (a, b) Circumferential friability, whitish membrane, edema, erythema, and superficial ulceration of mucosa from the anus to the sigmoid colon.
case_images: CRIS2019-9135378.002.jpg
case_images: PMC6925915_01_CRIS2019-9135378.002.jpg
case_images: fig2
case_images: Colonoscopy showed circumferential friability, whitish membrane, edema, erythema, and superficial ulceration of mucosa from the anus to the sigmoid colon (Figures 2(a) and 2(b)).
case_images: (a, b) Slightly pale mucosa with focal area of erythema from the anus to the sigmoid colon with narrowing of the caliber of the sigmoid colon.
case_images: CRIS2019-9135378.003.jpg
case_images: PMC6925915_01_CRIS2019-9135378.003.jpg
case_images: fig3
case_images: Six weeks after, repeated colonoscopy showed whitish membrane, erythema, and stricture from the anus to the sigmoid colon (Figures 3(a) and 3(b)).