Inflammatory bowel disease (IBD) with its 2 most common entities, ulcerative colitis and Crohn's disease, causes an increased risk of developing intestinal cancers. In fact, malignancies are the second most common cause of death after cardiovascular diseases in both sexes of patients with IBD. Risk factors for colorectal cancer in IBD correlate with the duration of the disease, extent of disease, the association with primary sclerosing cholangitis, family history, and early age at onset. Patients with IBD also have an increased risk for developing a variety of extraintestinal malignancies. In particular, lymphomas, mostly non-Hodgkin lymphomas and skin cancers, are more frequently observed in IBD patients. Longstanding inflammation and the degree of immunosuppression as a result of IBD treatment appear to be the main driving factors for IBD-related carcinogenesis. This review provides an update on the clinical and pathological features of IBD-related intestinal and extraintestinal malignancies.
Clinical Colorectal Cancer – Elsevier
Published: Mar 1, 2018
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