Uniportal thoracoscopic lobectomy was performed with the patient in the lateral decubitus position under general anesthesia and receiving single-lung ventilation. A single 3.5–4-cm skin incision was made on the anterior axillary line of the 4th or 5th intercostal space, and initially covered using an extra-small wound retractor (Alexis Wound Retractor; Applied Medical, Rancho Santa Margarita, CA, USA). Figure 2 presents a single skin incision (Figure 2A), an operative finding (Figure 2B) and specific surgical instruments (Figure 2C) in uniportal thoracoscopic surgery. Dominant vessels, including the pulmonary artery and vein, were exposed sufficiently and then divided, mainly using endovascular staplers. Small branches of these vessels were divided using an energy device after proximal ligation with silk sutures. The dominant bronchus was also divided using a stapler. Interlobar fissures were mainly divided using staplers or sometimes an energy device after ligation with silk sutures. The specimen was finally removed from the thorax after placing it in a plastic bag. ND2a-1 or greater lymphadenectomy was then performed; ND2a-1 consisted of lymphadenectomy with selective mediastinal dissection, while ND2a-2 consisted of radical mediastinal dissection (13 (link)). At the end of the operation, a chest drainage tube was placed in the thorax.