fig1

Figure 1. The trocar sites in the robot-assisted thoracoscopic esophagectomy in lateral decubitus position. Roman numerals show the rib numbers. Encircled numerals show the port sites. Ports 1-4 are the 8 mm da Vinci ports (Intuitive Surgical Inc.) connected to the corresponding robotic arms. Ports 5 and 6 are the 12 mm assistant ports. Port 6 is the AirSeal (ConMed) trocar. AA: Anterior axillary line; MA: middle axillary line; PA: posterior axillary line.