at colonoscopy simultaneous biopsies of the terminal ileum and colon were taken from 108 patients with reactive arthritis ( n = 55 ) or ankylosing spondylitis ( n = 53 ) , 47 patients with other rheumatic diseases and 19 control patients suffering from colonic polyps , adenocarcinoma , or chronic constipation .
C0009378
simultaneous
C0009368
colon