title: Appearance of attenuated intestinal polyposis during chronic non-steroidal anti-inflammatory drugs use.
abstract: Aspirin and non-steroidal anti-inflammatory drugs (NSAIDS) may prevent sporadic colonic neoplasia and reduce the polyp burden in familial adenomatous polyposis. A 41-year-old pharmacologist with no family history of intestinal polyps or cancer chronically consumed daily aspirin and other non-steroidal anti-inflammatory drugs for decades despite recurrent and multiple gastric ulcers. A cancerous polyp in the colon was endoscopically resected. Over the next 2 decades, almost 50 adenomatous polyps were removed from the rest of his colon and duodenum, typical of an attenuated form of adenomatous polyposis. Chronic and habitual use of aspirin or NSAIDS may have important significance in delaying the appearance of adenomas. The observations here emphasize the important implications for clinical risk assessment in screening programs designed to detect or prevent colon cancer.
authors.affiliation: Hugh James Freeman, Department of Medicine, University of British Columbia, Vancouver, BC V6T 1W5, Canada.
authors.forename: Hugh James
authors.initials: HJ
authors.lastname: Freeman
keywords: Aspirin; Attenuated polyposis; Chemoprevention of colon cancer; Colon adenoma; Colon cancer; Duodenal adenoma; Non-steroidal anti-inflammatory drugs