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Table 2 Involved ribs location and local-regional relapse of study group

From: Infiltration tendency of internal mammary lymph nodes involvement in patients with breast cancer: anatomical characteristics and implications for target delineation

 

Initial diagnosis

n = 34

Recurrent

n = 32*

Summary

n = 66(%)

Involved region

M0

M1

M0

M1

–

IMN (pts/No)

20

14

14

18

66

1st intercostal

5

10

6

7

28 (42.4)

2nd intercostal

17

13

11

17

58 (87.9)

3rd intercostal

3

4

4

9

20 (30.3)

4th intercostal

0

2

0

2

4 (6.1)

Single intercostal

15

4

7

9

35 (53.0)

≥1 intercostal

5

10

7

9

31 (47.0)

Local recurrence

–

–

9

8

17 (53.1)**

ALN I

19

13

0

3

35 (53.0)

ALN II

13

10

1

7

31 (47.0)

ALN III

9

8

1

6

24 (36.4)

SCN

5

5

4

9

23 (34.8)

  1. *Four cases lack of diagnostic imaging data, not included in the statistics
  2. ** Proportion of IMN in combination with local recurrence in relapsed population
  3. Abbreviations:IMN, Internal mammary lymph node; ALN Axillary lymph node; SCN, supraclavicular node