Risk factors for perioperative complications in laparoscopic surgeries of retrorectal cystic lesions

Figure 1 Important steps in the laparoscopic excision technique of retrorectal lesions. A: An incision was made on the left side of the mesorectum; B: Dissection the retrorectal space and mobilized the rectum and mesorectum to the front; C: Dissection the top of the lesion and then dissected the lateral wall, reaching the attachment points of the pelvic floor muscles; D: Protection of the pelvic autonomous nerves and the presacral venous plexus.