title: Screening for colorectal neoplasia in asymptomatic patients using flexible fiberoptic sigmoidoscopy.
abstract: Four hundred seventeen asymptomatic patients with an average age of 52 years underwent screening flexible fiberoptic sigmoidoscopy. Seventy-three polyps were detected in 52 patients with a 17.5 per cent detection rate. Half were above 25 cm and one-third were greater than 1.0 cm in size. Biannual follow-up of these patients is planned to determine the efficacy of this screening procedure combined with removal of all polyps in preventing the development of colorectal cancer.
mesh_terms: D000328:Adult; D000368:Aged; D003110:Colonic Neoplasms / Q000175:diagnosis / Q000517:prevention & control*; D004219:District of Columbia; D005260:Female; D005336:Fiber Optic Technology; D006801:Humans; D007417:Intestinal Polyps / Q000175:diagnosis*; D008297:Male; D008403:Mass Screening; D008875:Middle Aged; D011230:Precancerous Conditions / Q000175:diagnosis*; D012004:Rectal Neoplasms / Q000175:diagnosis / Q000517:prevention & control*; D012737:Sex Factors; D012812:Sigmoidoscopy