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.
Specialty: Hematology Oncology, Surgery, general, Obstetrics & Gynecology