Clinical application of eight-zone laparoscopic dissection strategy for rectal cancer: Experience and discussion

Figure 1 Schematic diagram of the "eight-zone method" of the pelvic floor fascia. A: Schematic image of the “eight-zone method” of the pelvic floor fascia; B: Magnetic resonance image of the “eight-zone method” of the pelvic floor fascia. UB: Urinary bladder; SV: Seminal vesicle; R: Rectum; S: Sacrum; RN: Perineal nerve; SN: Sciatic nerve.