Fig. 5From: The effect of endoscopic ultrasound on the precise selection of endoscopic treatment for submucosal tumors in the upper gastrointestinal tractA. Submucosal tumor in the esophagus under gastroscopy; B. Hypoechoic masses originating from muscularis propria under EUS; C. Tumor section size under EUS: 1.03 cm*0.51 cm; D. Establishment of tunnel entrance; E. Discovery of the tumor in the tunnel; F. Dissection of the tumor layer by layer; G. Tunnel after removal of the tumor; H. Closure of the tunnel entrance by titanium clip; I. Complete dissection of the tumor; J-L. Histopathological diagram of liomyoma; Desmin was positively expressed in the tumor tissue. EUS, endoscopic ultrasoundBack to article page