3P - Retrotracheal nodes
3P - Nodi retrotracheales
Definition
Station 3P (Retrotracheal lymph nodes) are those located in the retrotracheal region or the area posterior to the trachea.
Boundaries:
Upper border: apex of chest
Lower border: carina
Anterior border: posterior wall of the trachea
References
IASLC lymph node map https://www.iaslc.
International Association for the Study of Lung Cancer (IASLC) Lymph Node Map: Radiologic Review with CT Illustration Ahmed H. ElSherief, Charles T. Lau, Carol C. Wu, Richard L. Drake, Gerald F. Abbott, and Thomas W. Rice RadioGraphics 2014 34:6, 16801691