http://www.breastcancersource.com/br..._27833___.aspx
The inference I make from this article is that SNLB is associated with much more detailed pathology of the node extracted; use of IHC and "breadloafing" to check for mets rather than just gross examination of the nodes. It also raises the question, I think, about stats from an era that predate the standard use of SLNB - were a substantial number of patients counted as node negative really node positive, thus unfavorably skewing the demographic and the stats based on it? As someone node negative following SLNB, I like to think so!
Hopeful