Creamy white plaques coat the mucosa. This is a typical endoscopic appearance of symptoms Pseudomembranous colitis. Proctosigmoidoscopy may be completely negative, thus colonoscopy may be needed in some cases. Gross endoscopic findings usually reveal characteristic raised yellow-tan or green plaques which bleed. When raised from the mucosa. These plaques range in size from small distinct nodules (2–10 mm) to a confluent layer of pseudomembrane overlying the mucosa. The colonic mucosa may also show erythema, friability and edema.
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