Full-thickness excision using transanal endoscopic microsurgery for treatment of rectal neuroendocrine tumors

Figure 2 Full-thickness excision of a rectal lesion after incomplete resection. A: The scar site after endoscopic polypectomy where the resection margin was identified as tumor positive; B: Fat tissue outside the rectal wall; C: Suturing of the rectal wall; D: Specimen obtained by transanal endoscopic microsurgery with a safe margin.