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Table 4 Anatomic distribution of IMNs metastases

From: A retrospective analysis on metastatic rate of the internal mammary lymph node and its clinical significance in adjuvant radiotherapy of breast cancer patients

Location of the metastatic IMNs

Number(n=)

Percent(%)

The upper edge of the first rib

3

7

The first intercostal space

20

45.4

The second intercostal space

16

36.4

The third intercostal space

4

9.1

The fourth intercostal space

1

2.3

The fifth intercostal space

0

0

The sixth intercostal space

0

0

  1. IMNs Internal Mammary Lymph Nodes