Clinical value of carbon nanoparticles in identifying metastatic lymph nodes in colorectal cancer: A single-center observational study

Figure 1 Lymph nodes stained or non-stained with carbon nanoparticles. A: Representative images tumor specimen stained with carbon nanoparticles (CNPs); B: Representative images of lymph nodes (LNs) from D1 (pericolic/perirectal), D2 (intermediate), and D3 (main) regions. Arrow indicates non-stained LNs; C: Hematoxylin and eosin (HE) staining of a nonmetastatic lymph node stained with CNPs. Arrow indicates CNPs; D: HE staining of a metastatic lymph node non-stained with CNPs. Arrow indicates metastatic adenocarcinoma cells.