Endoscopic extraction of a submucosal esophageal foreign body piercing into the thoracic aorta: A case report

Figure 2 Images of endoscopy operation. A: Endoscopic examination was performed on October 21, 2020, and a bulge was identified; B: Endoscopic ultrasonography showed a strong echo light cluster protruding beyond the muscularis propria under the bulge; C: The nodule was incised with a dual knife and IT knife to the deep part of the esophageal muscularis; D: A suspicious fishbone with a length of about 1.5 mm was found on the distal side of the nodule; E: The fishbone was pulled out with biopsy forceps; F: The total length of the fishbone was approximately 22 mm.