Table 4 Estimated size (in centimeters) of metastatic disease within the first positive SLN for cases of invasive breast cancer (n = 104) based on which consecutively numbered SLN was first involved.
First SLN containing metastatic disease | Mean size ± SD | Median size (range) |
|---|---|---|
SLN #1 (n = 86) | 0.721 ± 0.691 | 0.500 (range, 0.005–3.000) |
SLN #2 (n = 15) | 0.471 ± 0.440 | 0.400 (range, 0.020–1.500) |
SLN #3 (n = 1) | 0.700 | 0.700 |
SLN #4 (n = 1) | 0.200 | 0.200 |
SLN #5 (n = 1) | 0.017 | 0.017 |
SLN #2, #3, #4, #5 (n = 18) | 0.443 ± 0.442 | 0.400 (range, 0.017–1.500) |