Figure 1.

Surveillance colonoscopies. (A) Surveillance colonoscopies for detecting dysplasia and preventing colorectal carcinoma. (B) Management of visible lesions at endoscopy. A visible lesion with dysplasia should be completely resected, independently of the grade of dysplasia or the localization relative to the inflamed mucosal areas. In the absence of dysplasia in the surrounding mucosa, the patient should follow the standard surveillance program. If endoscopic resection is not possible or if dysplasia is found in the surrounding flat mucosa, proctocolectomy should be recommended [27-29] CRC, colorectal cancer; IBD, inflammatory bowel disease; PSC, primary sclerosing cholangitis