Efficacy and Safety Analysis of Submucosal Tunnel Endoscopic Resection for Submucosal Masses in Esophageal Muscularis Propria

Figure 2

STER procedure and the follow-up. (a) Large tumor found under esophageal mucosa; (b) incision of esophageal mucosa; (c) tumor exposure; (d) gradual stripping; (e) complete stripping; (f) postoperative follow-up.

(a)

(b)

(c)

(d)

(e)

(f)