Figure 1. (a) Sigmoidoscopy revealed multiple ulcers on the lower rectum (case 1). (b) One of ulcers accompanied a large protuberant visible vessel (case 1). (c) Mechanical mucosal injury induced by the hemoclips caused gush-out hemorrhages, which occurred repeatedly (case 1). (d) The site of bleeding was manually compressed by a forefinger under endoscopic observation (case 1). (e) Compression hemostasis was achieved after 5 min (case 1).
Figure 2. (a) Sigmoidoscopy revealed multiple ulcers with gush-out hemorrhage on the lower rectum (case 2). (b) Mechanical mucosal injury induced by hemoclips and needles caused another gush-out hemorrhage (case 2). (c) The site of bleeding was manually compressed by a forefinger under endoscopic observation (case 2). (d) Compression hemostasis was achieved after 5 min (case 2).