Fig. 1From: Preoperative endoscopic localization of colorectal cancer and tracing lymph nodes by using carbon nanoparticles in laparoscopyLymph nodes dyed by carbon nanoparticles. White arrow points to stained black tumor lesions. Coarse black arrow indicates the lymph nodes with carbon nanoparticles dyed. Thin black arrow shows the lymphatic vessels dyed by carbon nanoparticlesBack to article page