Peptic ulceration in Crohn's disease (reional enteritis).

The incidence of peptic ulceration in a personal series of 300 patients with Crohn's disease was 8%. Resection of 60 or more centimetres of the small intestine was associated with significantly increased acid output, both basally and following pentagastrin stimulation. Only five (4%) of the 124 patients who received steroid steroid therapy developed peptic ulceration. It is suggested that resection of the distal small bowel may be a factor in the probable increase of peptic ulceration in Crohn's disease.