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Fig. 5 | World Journal of Surgical Oncology

Fig. 5

From: Conversion surgery for microsatellite instability-high gastric cancer with a complete pathological response to pembrolizumab: a case report

Fig. 5

Histopathological findings (hematoxylin-eosin staining). a Primary gastric lesion (×40 magnification). Mucus accumulation is observed from the submucosal layer to the subserosal layer. b Primary gastric lesion (×400 magnification). Infiltration of lymphocytes in the mucus, and no viable residue of tumor cells is observed. c Metastatic lesions of the anterior superior lymph node of the common hepatic artery. Mucus accumulation without viable residue of tumor cells is found in the lymph nodes

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