Figure 1

EPX-mAb immunohistochemistry represents a sensitive and novel strategy relative to H&E staining for the detection of infiltrating eosinophils as well as evidence of eosinophil degranulation in the pulmonary parenchyma. Side-by-side comparisons of serial lung sections stained with H&E and sections subjected to EPX-mAbimmunohistochemistry (red staining cells and extracellular matrix areas) are presented from control subjects and an ALI patient. Scale bar = 50 μm.