Long-term survival after treatment of gastric cancer with S-1 plus oxaliplatin regimen and sintilimab: A case report

Figure 1 Pathology and immunohistochemistry of the endoscopic biopsy and resected specimen. A: Hematoxylin and eosin (HE) staining of the endoscopic biopsy showed suggestive of gastric cancer: Moderately differentiated adenocarcinoma, HE × 100 and HE × 200; B: HE staining of the resected specimen confirms the diagnosis of gastric cancer: Moderately to poorly differentiated adenocarcinoma, with infiltration through the entire thickness of the gastric wall into the serosal fibrous adipose tissue, HE × 200 and HE × 400; C: Immunohistochemistry (IHC) of the resected specimen showed programmed death ligand 1 positivity, IIHC × 200 and IHC × 400.