Oral gel choline salicylate induced refractory gastric ulceration.

Common over the counter oral ulcer soothing gel can be an unexpected source of salicylate and cause refractory gastrointestinal ulcers if not identified.

Comparison of Pentax HiLine and Olympus Lucera systems at screening colonoscopy.

Aim: To compare the performance characteristics of Pentax HiLine (PHL) (with i-scan) and Olympus Lucera (OL) systems in a screening population.

Methods: Screening colonoscopies in asymptomatic guaiac faecal occult blood test-positive patients with PHL (n = 58) and OL (n = 425) colonoscopes were analysed. All procedures were performed by a single colonoscopist.