title: [Endoscopic polypectomy in the diagnosis and treatment of early colorectal cancer].
abstract: The rectocolon cancer (RCC) behavior in La Plata is clearly shown to be similar to the one found in high risk countries, both from the epidemiological and the histopathological point of view. The disagreement among different polyps coming from necropsy, endoscopy or surgery is found and discussed in relation to distribution, size and histopathological type. The evidence of de sequence adenoma-carcinoma is once more found in the cases studied. On the other hand, displastics lesions in non-neoplastic flat mucosa are not found. THe malignant potential of the adenomas is found to increase with the increment of their size, villous component and atipía degree. This evidence come from 100 adenomas considered. It is also found that in this sample that the malignant potential is high in small lesions -4,3%of invasive carcinoma on adenomas smaller than 10 mm. In a sample of 1000 colonoscopies, 122 endoscopic polipectomies where performed without evidence of either morbility or mortality. In this material, 4 rectocolonic early cancer were detected in polyps smaller than 10 mm. This fact strongly support the indication of resection in every rectocolonic elevated lesions. 11.4% of total resected polyps were found to be of the early RCC type this figure increases if the incidence of the polipectomy in children is discarded because in this cases adenomatous polyps do not appear in our experience. The clinic-epidemiologic character of 13 early RCC cases followed for periods until 5 years are described.
mesh_terms: D001118:Argentina; D003110:Colonic Neoplasms / Q000175:diagnosis / Q000601:surgery*; D003113:Colonoscopy; D006801:Humans; D007417:Intestinal Polyps / Q000175:diagnosis / Q000601:surgery*; D012004:Rectal Neoplasms / Q000175:diagnosis / Q000601:surgery*; D012306:Risk
vernacular_title: La polipectomía endoscópica en el diagnóstico y tratamiento del cáncer temprano rectocolónico.