Although some people equate anal cancer with cancer of the colon, the two diseases are distinct and considered to be unrelated. The anus comprises the very end of the large intestine. In contrast, approximately 500 deaths were attributed to anal cancer in the same year.
Scientists believe that dietary factors play a role in the development of colon cancer.
These may include higher fat levels in the diet, low fiber intake, and the eating of grilled, smoked, or fried foods. The contrasting risk factors for anal cancer, such as infection with HPV and receptive anal intercourse, are outlined in the main article . Though such extensive data are lacking in the case of anal cancer, a correlation between smoking and ASIL rates, as with CSIL rates, has been noted. Special thanks to Dr. Joel Palefsky for his assistance in preparing this article. Nicholas Cheonis is Associate Editor of BETA .