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High expression of H3K27me3 was associated with HCC vascular invasion. (A) Higher expression of H3K27me3 was observed in carcinoma cells located at blood vessels in a patient with HCC (case 89 in testing cohort, arrow, 200×). (B) The endothelial cells of blood vessels (arrow) were stained for IHC, with an anti-CD34 antibody on the serial section of the same case 89 (200×).
