Fig. 5From: Conversion surgery for stage IV gastric cancer with a complete pathological response to nivolumab: a case reportHematoxylin-eosin staining. a The scale bar indicates 500 μm (×40 magnification). b The scale bar indicates 100 μm (×200 magnification). The pathological examination showed an ulcer scar with infiltrating lymphocytes and plasma cells without residual tumorsBack to article page