The control of colorectal cancer is currently dependent on early detection, and its prevention
requires the recognition and treatment of its precursor lesions. The adenoma has been
established as the precursor of colorectal carcinoma in the general population. Among
patients with inflammatory bowel disease (IBD), dysplasia is associated with, and precedes,
invasive carcinoma. In this section criteria are described for the histological detection of
preinvasive and early invasive neoplasia in the large intestine of patients with and without …