Novel technique for lymphadenectomy along left recurrent laryngeal nerve during thoracoscopic esophagectomy

Figure 1 The position and operation ports of the patient during thoracic surgery. The patient was placed in the semi-prone position. The camera port was placed at the 7^th intercostal space (ICS) along the mid-axillary line. The other three ports were located at the 4^th ICS along the anterior axillary line, the 6^th ICS along the posterior axillary line, and the 9^th ICS along the subscapular line. (1) Air intake duct of artificial pneumothorax; (2) Air outlet duct of artificial pneumothorax. ICS: Intercostal space.