Figure 1.

Port mapping for single-port robotic-assisted thoracic surgery for large-sized tumors. (A) The anatomy for an incision site. The red line indicates an incision site. The blue dotted line indicates the posterior axillary line. A 6–8 cm utility incision is made at the 7th–8th ICS. (B) Layout of robotic arm positions. During the procedure, an 8 mm port is used on both arms (arm 1 and arm 3) to reduce collisions (Figure 2A). When using the robotic stapler, the 8 mm port on either arm 1 or arm 3, where the stapler will be inserted, is replaced with a 12 mm port (Figure 2B). After stapling, we replaced the 12 mm port with an 8 mm port to reduce any collisions between instruments.