Chronic Inflammation and Malignancy in Ulcerative Colitis

Table 1

Reasons for failure of surveillance colonoscopy.

(i) Noncompliance of patients with UC to follow up with gastroenterologists
(ii) Inadequate collection of biopsy samples from surveillance colonoscopy
(iii) Inability of pathologist to properly diagnose degree of dysplasia
(iv) Disagreement amongst pathologists in regards to degree of dysplasia
(v) Development of cancer prior to the initiation of surveillance colonoscopy