Rare spontaneous extensive annular intramural esophageal dissection with endoscopic treatment: A case report

Figure 3 Gastroscopy was a performed before endoscopic treatment for this patient. A and B: Endoscopic picture of the middle level of the esophagus. A thin mucosal bridge connects the proximal and distal mucosal tubes. Note the large mucosal defect with numerous small depressions around the mucosal bridge; Gastroscopic manifestations of the patient during endoscopic treatment; C-E: The esophageal mucosa was completely stripped and dissociated in the esophageal cavity, the lower end was narrow, and the gastroscope could not pass through. The blind end of the mucosa was cut with an L-knife. Subsequently, a disposable polypectomy device was used to remove a part of the mucosal strip so that the blind end was unobstructed, after which the gastroscope entered the gastric cavity smoothly.