Study of morphological and clinical bases of organpreserving surgery for ampular cancer of the rectum

Abstract

In the last decade, there has been an increase in the incidence of malignant tumors of the rectum (RC) in the world. An incidence of 50 new cases of colorectal cancer per 100,000 population per year indicates a 5% population lifetime risk of developing the diseaseIt is alarming that 100 newly diagnosed malignant neoplasms of the rectum (MNR) account for more than 70 deaths, 40% of them in the first year after diagnosis. In 62.4% of patients, late forms of MNR (stages III-IV) were detected at the first appearance. Surgery alone has shown poor MNR follow-up—five-year survival rates have been consistently low over the last 20–25 years, averaging 52%.