Right Upper Lobe: Anterior Segment (S3)
B3 is the anterior branch of the upper bronchus. It is independent from the apicoposterior truncus (B1+2) or from B1 and B2 and is usually easily recognized by its anterior direction, while B1 and B2 have a cephalad direction (◘ Fig. 10.1a).
Making a tunnel for separation of S3 from the middle lobe (MOV 38537 kb)
Suturing B3 (MOV 52902 kb)
Marking the intersegmental plane (MOV 34531 kb)