1L - Left highest mediastinal nodes - 1L

Anatomical hierarchy

1L - Left highest mediastinal nodes



Upper border: lower margin of cricoid cartilage Lower border: clavicles bilaterally and, in the midline, the upper border of the manubrium, 1R designates right-sided nodes, 1L, left-sided nodes in this region For lymph node station 1, the midline of the trachea serves as the border between 1R and 1L
source : IASLC Map


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