INTRODUCTION: The resection of colorectal polyps is an important role in decreasing the incidence of colorectal cancer. The objective of this study is to determine the incidence of polyps, histological type, malignant transformation rate and the appearance of new polyps in patients that underwent videocolonoscopy for a wide range of indications in the coloproctology service of the Caridade Hospital in Florianópolis - SC. MEHTOD: Retrospective analysis of 3,491 patients submitted to videocolonoscopy from January 2002 to October 2006. The incidence of colorectal polyps by sex and age, histological types and the presence of adenocarcinoma were determined. Familial polypoid syndromes, unresected polyps and patients whose pathology records were incomplete or had been lost were excluded. RESULTS: Polyps were found in 1,046 (29.96%) out of 3,491 videocolonoscopies, totaling 1,899 polyps in 865 patients. 53.94% of patients were male and 46.06% female, and 58.46% of them aged over 60 years. The histological analysis of 1,579 colorectal polyps showed that 31.54% were tubular adenomas, 14.19% tubulovillous adenomas, 1.65% villous adenomas, 36.03% hyperplasic polyps, 7.22% inflammatory polyps and 7.85% of other histological types. 24 (1.52%) polypoid adenocarcinomas and 18 (1.14%) adenocarcinoma focci in adenomas were observed. CONCLUSION: The incidence of polyps in the studied sample was high, with adenoma being the most frequent histological type, with risk of malignization of 1.14% and polypoid adenocarcinomas in 1.52%. Patients with colorectal adenomas must be followed-up due to the increased likelihood of the appearance of new lesions.
Polyps; Colonoscopy; Colorectal Cancer
