RadiopaediaThoracic Lymph Node Stations

A review of the seven zones/14 stations as defined by the International Association for the Study of Lung Cancer (IASLC):

Supraclavicular zone

• Station 1 (left/right): low cervical, supraclavicular, and sternal notch nodes

Upper zone (superior mediastinal nodes)

• Station 2 (left/right): upper paratracheal nodes
• Station 3A and 3P: pre-vascular and retrotracheal nodes
• Station 4 (left/right): lower paratracheal nodes

Aortopulmonary zone

• Station 5: subaortic nodes (aortopulmonary window)
• Station 6: para-aortic nodes, ascending aorta or phrenic

Subcarinal zone

• Station 7: subcarinal nodes

Lower zone (inferior mediastinal nodes)

• Station 8 (left/right): para-esophageal nodes (below carina)
• Station 9 (left/right): pulmonary ligament nodes

Hilar and interlobar zone (pulmonary nodes)

• Station 10 (left/right): hilar nodes
• Station 11: interlobar nodes

Peripheral zone (pulmonary nodes)

• Station 12: lobar nodes
• Station 13: segmental nodes
• Station 14: subsegmental nodes