[Surgical treatment of colo-rectal tumors. Immediate and long-term results in 1749 cases].

An assessment is made of the development of surgical techniques and results obtained throughout a series of 1748 cases of colon and rectum cancer observed over a period of 40 years. Attempts to improve survival have included an extension of lymph duct resection. This approach has proved successful, though a longer period of study is still needed. Lastly, rectal cancer is examined in terms of survival in function of various biological factors associated with the neoplasia.