Figure 3

Surgical situs: a vessel loop was placed around the subclavian artery (SA), the carotic artery (CA), the right vagus nerve (VN) and the phrenic nerve (PN). CP indicates the cervical plexus; Clamps were placed on the stumps of the cut superior vena cava. The retractor on the left edge held back the pectoralis major muscle, in the center the exposed lung apex is visible.