Case Report
Copyright ©The Author(s) 2022.
World J Clin Cases. Nov 6, 2022; 10(31): 11617-11624
Published online Nov 6, 2022. doi: 10.12998/wjcc.v10.i31.11617
Figure 2
Figure 2 Immunohistochemistry. A: Immunohistochemical (IHC) staining for programmed death-1 (PD-1) revealed positive neoplastic cells with a membranous pattern (× 200, scale bar: 100 μm); B: IHC staining for PD-1 revealed negative neoplastic cells (× 200, scale bar: 100 μm); C-F: IHC staining for mismatch repair (MMR) proteins revealed integrity of the MMR system (× 200, scale bar: 100 μm).