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Figure 5 Histologic sections stained with hematoxylin and eosin (HE) from patent drug-eluting stents (DES) and bare-metal stents (BMS) from various time points. Coronary arteries with Cypher (A) and Taxus (B) stents at 68 and 57 days, respectively. High-power views showing inflammatory infiltrate around Cypher struts (C) including eosinophils (inset Luna stain), whereas around the Taxus stent struts (D) there is a predominance of fibrin. At 130 and 124 days, respectively, there is focal fibrin deposition and giant cell reaction seen around the Cypher stent (E), whereas in the Taxus stent (F) there is greater inflammation including eosinophils (inset Luna stain). A BMS at 124 days is shown in G and H.