[Cancerous colonic polyps]

Abstract

The treatment of cancerous polyps of the colon has not been definitely established. In the present study the authors have brought forth their contribution on the role played by endoscopic polypectomy alone or following a surgical resection. At our endoscopic service during the period from 1985 to 1992, there were 42 polyps diagnosed which after histologic examination showed an infiltrating carcinoma. 22 patients underwent surgery and 16 only an endoscopic polypectomy. The median follow-up was 43.3 months with a minimum period of 18 months. Four patients were lost during follow-up. We have analyzed for prognostic reasons, the type of polyps, the radicality of the polypectomy, the degree of differentiation and the infiltration of lymphatic and/or venous vessels of the polyp. The presence of carcinomal residue and lymphonodal metastases were taken into consideration in patients who underwent surgical resection. The results obtained were not evaluated statistically because of the limited number of patients with an adequately long follow-up. Nevertheless they are in line with those results from the majority of the cases quoted in other literature. In particular these cases which seem to have a favorable prognosis are those in which complete endoscopic polypectomy has coupled with a good degree of differentiation and the absence of infiltration of the lymphatic and venous vessels. In these cases surgery does not seem to have bettered the survival rate.