Fig. 2

Schema of the anatomy of the basilar segment and intraoperative image. A Schematic of conventional and surgeon’s views of the vein and bronchus. B B7 posterior (black arrowhead), B7 anterior (arrow), and B9 + 10 (white arrowhead) are shown. C The B7 posterior (black arrowhead), B10bc (arrow), and B9 (white arrowhead) are shown. For complete resection of the lesion, it was necessary to divide the B10bc from the B7 posterior. D The V9 + 10 (arrow) is shown. Intersegmental vein preservation between S9 and S10 (white arrowhead) and division of the intrasegmental vein (black arrowhead) were planned