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Table 3 Classification of metastatic disease within first positive SLN based on whether SLN#1 was and was not the first positive SLN for cases of invasive breast cancer (n = 104).

From: Re-emphasizing the concept of adequacy of intraoperative assessment of the axillary sentinel lymph nodes for identifying nodal positivity during breast cancer surgery

 

SLN#1 was first positive SLN (n = 86)

SLN#1 was not first positive SLN (n = 18)

P-value

Macrometastatic (> 2 mm)

58 (67%)

11 (61%)

0.605

Micrometastatic (≤ 2 mm, but > 0.2 mm)

21 (24%)

3 (17%)

0.759

Submicrometastatic (≤ 0.2 mm)

7 (8%)

4 (22%)

0.095

  1. SLN, sentinel lymph node.