1
.
| Area of fusion between upper and middle lobes |
2
.
| Right main bronchus |
3
.
| Area of fusion between middle and lower lobes |
4
.
| Interlobar surface lower lobe |
5
.
| Superior branch of lower lobe, right pulmonary artery |
6
.
| Superior segmental bronchus |
7
.
| Bronchopulmonary lymph nodes |
8
.
| Basilar part right pulmonary artery |
9
.
| Lower lobe |
10
.
| Upper lobe (reflected across midline) |
11
.
| Interlobar surface upper lobe |
12
.
| Right superior pulmonary vein (posterior branch to upper lobe) |
13
.
| Right pulmonary artery (ascending branch of interlobar part) |
14
.
| Right pulmonary artery (interlobar part) |
15
.
| Right superior pulmonary vein (branch to middle lobe and anterior segment of upper lobe, cut off) |
16
.
| Right pulmonary artery (branch to middle lobe) |
17
.
| Bronchus of middle right lobe |
18
.
| Right inferior pulmonary vein (branch to middle lobe) |
19
.
| Middle lobe (pointer on interlobar surface) |
20
.
| Pericardium |