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Case Report
Copyright: ©Author(s) 2026.
World J Gastroenterol. Mar 21, 2026; 32(11): 115809
Published online Mar 21, 2026. doi: 10.3748/wjg.v32.i11.115809
Figure 3
Figure 3 Hematoxylin-eosin staining and immunohistochemistry staining of biopsy tissues. A: Gastric mucosa revealed severe inflammation [Hematoxylin-eosin (HE) staining, 100 ×]; B: Mainly lymphocyte and plasma cell infiltration (HE staining, 400 ×); C: Helicobacter pylori immunohistochemistry (IHC) staining showing pathogens on the superficial mucosa (IHC staining, 400 ×, blue arrows); D: IHC staining of Treponema pallidum showed thread-like pathogens distributed in the tissue and mucus (IHC staining, 400 ×, orange arrows).


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