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

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

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

Inferior Mediastinal 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

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