Fiberoptic colonscopy.
D003108:Colonic Diseases / Q000175:diagnosis; D003110:Colonic Neoplasms / Q000175:diagnosis; D005336:Fiber Optic Technology / Q000295:instrumentation; D006801:Humans; D007417:Intestinal Polyps / Q000601:surgery; D020694:Sigmoidoscopes; D012812:Sigmoidoscopy / Q000379:methods