The incidence of right-sided colon cancers has increased since the 1980s, while the incidence of left-sided colon cancers has decreased. Numerous hypotheses have been proposed to explain this ...

THIS study is based on 242 patients who were operated on between 1930 and 1950 for carcinoma of the right colon. This group includes patients with carcinoma of the cecum, the ascending colon and ...