fig1

Figure 1. Patient body position and port placement. (A) In the right-side resection, the patient is placed in the left decubitus or semi-decubitus position with the right arm brought to the left side; (B) in the left-side resection, the patient is placed in the supine position. Robotic ports (numbers 1 to 4) are placed as shown. Number 2 port is usually used for endoscope. An additional 12-mm assistant trocar (A) is placed between robotic ports number 1 and 2. In both (A) and (B), T represents the site of the target tumor