Abstract
There are various colonoscopic features in active or quiescent ulcerative colitis, including erosions, ulcers, erythema, edema, friability, spontaneous bleeding, granularity, nodularity, sessile or pedunculated inflammatory polyps, mucosal scars and bridges, luminal lead piping, and benign or malignant strictures. These endoscopic features may coexist in an individual patient. The patients may present with cecal patch, rectal sparing and backwash ileitis. Recognition of these endoscopic features along with tissue biopsy is imperative for the diagnosis, differential diagnosis, disease monitoring, assessment of treatment response, and dysplasia surveillance.
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