CLINICOPATHOLOGIC FEATURES OF COLORECTAL POLYPS: A RETROSPECTIVE STUDY FROM NORTH-EASTERN ANATOLIA REGION OF TURKEY

Objectives: The aim of this study is to examine the patient characteristics, locations, presentations and histopathological features of colon polyps. Material and methods: We analyzed 153 biopsy specimens of 123 patients who underwent colonoscopy with biopsy of colonic polyps during a two-year period from 2014 to 2016, in A？r？ State Hospital and Erzurum Regional Training and Research Hospital, retrospectively. Results: The mean age was 58.9±15.6 years (Range: 19-90 years). 78 (63.4%) patients were males and 45 (36.6%) patients were females. 25 (20.3%) patients had two or three (multiple) polyps. In 4 biopsy specimens (2.6%) were diagnosed with carcinoma arose from tubular adenomas. The most common type of polyp was the adenomatous polyp (n:123, 80.3%). The most common anatomical locations of polyps were the rectum in 45 (29.4%) cases and the sigmoid colon in 45 (29.4%) cases. The mean size of polyps was 4.1 mm (range: 1mm-20 mm). High-grade dysplasia was found in 20 of 123 (13.2%) adenomatous polyps. Mean diameters were significantly different in adenomatous polyps with high-grade dysplasia and low-grade dysplasia (p<0.05). Conclusion: Most of the polyps were identified in patients aged 50 years or older. More than 50% of the polyps were found in the rectosigmoid part of the colon. The majority of the polyps were adenomatous and high-grade dysplasia was detected in large diameter polyps