Skip to main content

Table 4 False negative rate(FNR) of sentinel node biopsy according to clinicopathological factors

From: Sentinel lymph node biopsy after neoadjuvant chemotherapy for breast cancer: retrospective comparative evaluation of clinically axillary lymph node positive and negative patients, including those with axillary lymph node metastases confirmed by fine needle aspiration

Characteristics

ALN positive No. of cases

SN negative ALN positive No. of cases

FNR

P

Total

22

8

36.4 %

 

Age

   

0.402

  < 50 yr

8

2

25 %

 

  ≥ 50 yr

14

6

42.9 %

 

BMI

   

0.531

  ≤ 30

18

6

33.3 %

 

  > 30

4

2

50 %

 

Clinical tumor volume

   

0.856

  ≤ 5 cm

16

6

37.5 %

 

  > 5 cm

6

2

33.3 %

 

Tumor location

   

0.149

 Upper-outer quadrant

14

6

42.9 %

 

 Others

8

2

25 %

 

Pathology

   

-

 Invasive ductal carcinoma

22

8

36.4 %

 

 Invasive lobular carcinoma

0

0

  

Vascular invasion

   

0.402

 Yes

8

2

25 %

 

 No

14

6

42.9 %

 

HER-2 status

   

0.07

 Positive

6

4

66.7 %

 

 Negative

16

4

25 %

 

ER status

   

0.315

 Positive

14

4

28.6 %

 

 Negative

8

4

50 %

 

Tumor response to neoadjuvant chemotherapy

   

0.145

 CR

7

2

28.6 %

 

 PR

13

4

30 %

 

 ST

2

2

100 %

 

No. of SN

   

0.862

 1

8

2

25 %

 

 2

6

3

50 %

 

 More than 3

8

3

37.5 %