Fig. 5From: Thoracoscopic esophagectomy with three-field lymphadenectomy for thoracic esophageal cancer in a patient with a double aortic arch: a report of a caseThis figure shows the port position during the left thoracoscopic procedure, with the number of intercostal spaces and the diameter of each inserted port. The operator, assistant, and scopist used each port, as shown in this figure. MAL, middle axillary line; PAL, posterior axillary lineBack to article page