Group 3 called “prevascular and retrotracheal nodes” can only be appreciated on the axial images since they are found relatively anterior and posteriorly in the chest.
Superior Mediastinal Nodes
1 Highest Mediastinal Nodes
2 Upper Tracheal Nodes
3 Prevascular and Retrotracheal Nodes
4 Lower Paratracheal Nodes

1= Highest, 2= Upper Tracheal and 4 = Lower Paratracheal
32682n01n.800 nodes 1,2,4 Superior mediastinal Nodes 1 Highest Mediastinal Nodes 2 Upper Tracheal Nodes 3 Prevascular and Retrotracheal Nodes 4 Lower Paratracheal Nodes chest mediastinum lymph nodes normal anatomy CTscan Ashley Davidoff MD TheCommonVein.net

3 = Prevascular Nodes
This patient has lymphoma and the nodal groups of the mediastinum are all enlarged.
42058c01b
Ashley Davidoff MD TheCommonVein.net

3 = Prevascular 4 = Lower Paratracheal
Aortic Nodes
6= Paraaortic Nodes
42058c02 Ashley Davidoff MD TheCommonVein.net
Aortic Nodes
5 Subaortic Nodes (A-P window)
6 Paraaortic Nodes (Ascending Aorta or Phrenic)

5= A-P window and 6= Paraaortic
32682n07n.800 Ashley Davidoff MD TheCommonVein.net

6= paraaortic
Superior Mediastinal
3 – Prevascular Nodes 4 = Lower Paratracheal
42059c01 Ashley Davidoff MD TheCommonVein.net
Inferior Mediastinal Nodes
7 Subcarinal Nodes
8 Paraesophageal Nodes
9 Pulmonary Ligament Nodes

7= Subcarinal, 8= Paraesophageal and 9= Pulmonary Ligament
32682n06n.800 Ashley Davidoff MD TheCommonVein.net
10 Hilar Nodes
11 Interlobar Nodes
12 Lobar Nodes
13 Segmental Nodes
14 Subsegmental Nodes

10=Hilar, 11=”Interlobar,” 12=”Lobar,” 13=”Segmental,” 14 = Subsegmental
32682n05ns.800 Ashley Davidoff MD TheCommonVein.net