Abstract
Objective
To study demographic pattern of colonic polyps in Yazd province of Iran.
Methods
This descriptive study was done on 158 patients referred for colonoscopy to Shahid
Sadoughi General Hospital between 2003-2008. Data based on patients age, gender,
clinical signs, symptoms and colonoscopic findings were collected from patients
hospital records and pathology reports, then analyzed by SPSS software .
Results
One hundred fifty eight patients had a colonic polyps, among them 84 (53.2%) were
men and 74 (46.8%) were women, with mean age of 50.99 years. Non neoplastic
polyps were common below the 39 years and neoplastic polyps were common after 40
years age. Neoplastic polyps were more frequent in women (60.8%) than men
(53.6%), but non- neoplastic polyps were more frequent in men (46.6%) compared
with women (39.2%). Rectorrhagy was the most common clinical sign (43%)
followed by tenesmus (9.5%). Rectum was the most commonly involved region
(36.7%) both in neoplastic and non neoplastic polyps. Neoplastic polyps (57%) were
common than non neoplastic polyps(43%). Tubular adenoma were commonest
adenomatous polyp (78.9%) and the tubulovillus adenoma were infrequent (3.3%).
Mild dysplasia was seen in (68.9%) of polyps and only 10% of adenomatous polyps
had a severe dysplastic changes. Adenocarcinoma found in 3.8% of polyps.
Conclusion
Our findings were similar to other studies, however, the rate of adenocarcinoma was
higher than other studies. Further studies based on related factors such as dietary
regimen and environmental factors are recommended. (Rawal Med J 2010;35: ).

Key words: Polyp, adenoma, adenocarcinoma.