Outcomes after natural orifice extraction vs conventional specimen extraction surgery for colorectal cancer: A propensity score-matched analysis

Figure 1 Schematic of 3-port natural orifice specimen extraction surgery port positioning and operative set-up. A: For left-sided colorectal resection; the right iliac fossa port can be 5 or 12 mm depending on whether a linear stapler is used; B: For right-sided or subtotal/total colectomy, comprising position 1 for the initial phase of surgery and position 2 for the natural orifice specimen extraction procedure.