Endoscopic submucosal dissection, transanal endoscopic microsurgical submucosal dissection, and transanal minimally invasive surgery in rectal lesions

Figure 3 Transanal endoscopic microsurgery procedure for a rectal lesion. A: Circumferential marking around the lesion (white arrow); B: Incision of the muscular layer during full-thickness excision (white arrow); C: Post-resection defect following full-thickness excision (white arrow); D: Appearance of the rectal wall after defect closure with sutures (white arrow); E: Gross specimen of the resected lesion pinned for pathological evaluation.