Description

Barranger et al developed a scoring system for predicting involvement of non-sentinel axillary lymph nodes in a woman with breast cancer. This can help to decide if a woman with a positive sentinel lymph node requires an axillary dissection. The authors are from Hopital Tenon in Paris, France.


 

Patient selection: woman with breast cancer and sentinel axillary lymph node biopsy with at least 1 node positive

 

Parameters:

(1) diameter of the primary tumor in mm

(2) percent of sentinel lymph nodes with metastases

(3) macrometastasis in the sentinel lymph nodes

 

Parameter

Finding

Points

diameter of the primary tumor

<= 10 mm

0

 

11 to 20 mm

1.5

 

> 20 mm

3

percent of involved sentinel lymph nodes

< 50%

0

 

50 to 99%

1

 

100%

2

macrometastasis in sentinel nodes

none

0

 

one or more

2

 

total score =

= SUM(points for all 3 parameters)

 

Interpretation:

• minimum score: 0

• maximum score: 7

• The higher the score the more likely nonsentinel lymph nodes are involved.

• Gur et al found that a patient with a score <= 3.5 had about a 3% chance of having tumor in a nonsentinel lymph node, while a score <= 4 had a 5% chance.

 


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