Early esophageal cancer with mucosal bridging in the resting room: A case report

Figure 1 Gastroscopy appearance of lesion. A: Patchy erythema with bridge like protrusions in the esophageal diverticulum under white light; B: The lesion under narrow band imaging appears tea brown in color; C: Intrapapillary capillary loops under magnifying endoscopy with narrow band imaging shows B1 type; D: Endoscopic submucosal dissection postoperative wound; E: Lodine staining after lesion dissection; F: Scar like changes observed during 3-month postoperative follow-up.

Figure 2 Pathological biopsy after specimen fixation. A: Sample after tissue incision, the red dashed line represents the front of the 2B tissue strip; B: On the side of the tissue strip, the raised mucosal bridge is a solid tubular structure; C: Pathological hematoxylin and eosin (HE) staining presented the mucosal bridge spanning the intrinsic mucosa of the esophagus, × 40; D: Pathological HE staining presented the tubular structure and esophageal mucosa, showing high-grade intraepithelial neoplasia and in situ cancer of squamous epithelium, × 100; E: Pathological HE staining presented the tubular structure. The axis of the tubular structure is composed of proliferating arteriovenous vessels and fibrous smooth muscle tissue, × 100.