Abstract
ADVANCES in the treatment of cancer of the colon and rectum consist largely of measures that have extended the amount of resection.1 2 3 4 In early lesions, such radical surgery offers the best assurance of cure. In advanced lesions, it permits the removal of growths that were formerly regarded as totally inoperable. Even when cancer recurs it can be removed by a second attempt at radical surgery. Once a properly executed resection has been done, however, there is a tendency for the surgeon to believe that the die has been cast. Because most recurrences are beyond the scope of surgery, all recurrences . . .