Figure 3. Representative blue DSLCs obtained after single peritumor injection of methylene blue dye postoperatively (back side of the breast), revealing that pathways of lymph flow arise from the peritumor parenchyma, pass through the retromammary tissue above pectoralis deep fascia, and terminate at the SLNs in the axilla.
(1. injection site; 2. blue DSLC; 3.SLN; 4.tumor).