Organ and function preservation in gastrointestinal cancer: Current and future perspectives on endoscopic ablation

Figure 1  Diagram of endoscopic radiofrequency ablation in the esophagus.

Figure 2  Demonstration of liquid nitrogen spray cryotherapy in the esophagus.

Figure 3  Cryoballoon ablation in the esophagus.

Figure 4  Cryoballoon ablation in the duodenum.

Figure 5  Endobiliary ablation for palliation.

Figure 6  Endoscopic ultrasound with fine needle ablation/injection.