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Neoplastic cells with immunohistochemical expression of CXCR4, located in the cytoplasm and/or the membrane, are shown. Cells that revealed immunohistochemical expression of CXCR4 were considered positive. A calculation of 10% positive cells was made, placing the number of positive cells into the ‘low’ category. CXCR4, C-X-C chemokine receptor type 4.
