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  Indian J Med Microbiol
 

Figure 4: Representative images of PD-L1, CD68, and CD163 immunohistochemical staining in primary SRCC specimens and negative controls (corresponding adjacent nontumor specimens and PCa specimens with different Gleason scores) at 200× magnification. High PD-L1, CD68 and CD163 expression levels appear as brown or brown–yellow staining. PCa: prostate adenocarcinoma; SRCC: signet ring cell carcinoma.

Figure 4: Representative images of PD-L1, CD68, and CD163 immunohistochemical staining in primary SRCC specimens and negative controls (corresponding adjacent nontumor specimens and PCa specimens with different Gleason scores) at 200× magnification. High PD-L1, CD68 and CD163 expression levels appear as brown or brown–yellow staining. PCa: prostate adenocarcinoma; SRCC: signet ring cell carcinoma.