2017 Volume 59 Issue 1 Pages 14-23
Background and Aim:Ischemic right-sided colitis is rare in Japan. We describe clinical characteristics and endoscopic findings of our cases of ischemic right-sided colitis.
Methods:In the past 11 years, we experienced seven cases of ischemic right-sided colitis. They consisted of one transient type, five stricture type and one gangrenous type. We retrospectively analyzed their clinical characteristics and imaging findings （mainly endoscopic findings）.
Results:Our cases had mainly vascular factors such as coronary artery disease and chronic kidney failure. Clinical symptoms of our cases were mainly abdominal pain. CT imaging revealed severely thickened wall of the right-side colon. Endoscopic findings of non-gangrenous right-sided colitis were incomplete annular-like ulcer or belt-shaped ulcer. These ulcers were wide and deep on the antimesenteric side, and were narrow and shallow on the mesenteric side.
Conclusions:The clinical characteristics and endoscopic findings of ischemic right-sided colitis were different from those of ischemic colitis. These results suggest that the pathogenesis of ischemic right-sided colitis is different from that of ischemic colitis.
