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Comparison of immune infiltrate immunohistochemical studies in a pre- and post-treatment undifferentiated pleomorphic sarcoma. Representative photographs of immunostained undifferentiated pleomorphic sarcoma of the extremity and trunk. Increased CD3, CD4, CD8, CD163, FOXP3 and PD1 positive cells were seen in the post treatment specimen. Tumoral PD-L1 expression was increased.
