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Representative images of patient specimens with a particularly high neutrophil to lymphocyte ratio. The pancreatic ductal adenocarcinoma tissue contained masses of neutrophils: (A) ×100 magnification; (B) ×400 magnification (stain, hematoxylin and eosin). Lymphoid follicles were not observed in the stromal tissue adjacent to the tumor: (C) ×100 magnification; (D) ×400 magnification (stain, hematoxylin and eosin).
