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. 2018 Feb 8;7(5):e1426517. doi: 10.1080/2162402X.2018.1426517

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Figure 1. — CD200 is expressed in MCC tumors. (A) microarray gene expression using probe sets for CD200, MCC markers KRT20 and ATOH1, and negative control TYR. (B) CD200 staining in MCC tumor and adjacent hair follicle (arrow). Original magnification 100x. (C) CD200 and endothelium marker CD31 immunostaining in MCC tumor. Original magnification 200x. (D) Patient outcomes fail to correlate with CD200 staining level (0 = no staining, 1 = weak staining, 2 = moderate staining, 3 = strong staining). MCC, Merkel cell carcinoma; SCLC, small cell lung cancer; PFS, progression free survival; DSS, disease specific survival.