Successful outcomes of EMR-L with 3D-EUS for rectal carcinoids compared with historical controls

Figure 1 EMR-L combined with 3D-EUS using an ultrasonic probe. A: Endoscopic view of rectal carcinoid; B: 3D-EUS was performed at the same time as saline injection into the submucosal layer; C: Aspiration of the tumor into the ligation device; D: Tumor ligated with the elastic band; E: Snaring below the elastic band; F: Ulcer after resection.

Figure 2 EUS image of rectal carcinoid (radial and linear image). A: Carcinoid was imaged as a low-echoic region with a depth of invasion to the third layer, i.e. the submucosal layer; B: Image upon saline injection into the submucosal layer. The tip of the injection needle was located beneath the tumor in the submucosal layer; C: Image after saline injection into the submucosal layer. The injected saline was imaged as a low-echoic area beneath the tumor in the submucosal layer.

Figure 3 Comparison between EUS-determined and histopathologically measured tumor diameter.